Quick filters:
Bacterial blight Stock Photos and Images
RMMCKWJ0–. Fig. 45. Sweet Corn Diseases. a. Bacterial blight, 6. individual blight organisms (a. to 6. after F. C. Stewart), c. smut, d. smut spores, e. and/, germinating spores of Uslilago zeir (</. to/, after J. b' S. Norton).
RMT1HB3C–Diseases of field crops in Diseases of field crops in the Prairie Provinces disoffieldcrop Year: 1957 DISEASES OF FIELD CROPS Figure 26.—Pea seeds affected by bacterial blight. Note watersoaked areas. Ascochyta Blight Ascochyta pisi, A. pinodella, and Mycosphaerella pinocles Ascochyta blight is caused by one or more of the fungi named above. This disease is widespread and, occasionally, has been a serious threat to the seed and green-pea industries in areas of abundant moisture. Appearance—Somewhat similar though distinguishable, symptoms are caused by the three parasites. The leaf spots
RMPFY1CM–. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. 1472 ENCYCLOPEDIA OP PRACTICAL HORTICULTURE white varieties. It causes black circular spots on the bulbs. Store in a dry cool place and avoid piling too deeply in the bins. - '• ' See Bmudae, Bacterial Diseases. See Herat Rot, this section. Black Neck. See Dry Rot, this section. Blight Leaf blight or scald of onions during mid-season, when the we
RF2PGFAFR–Yellowed dried leaves of pepper grown in a pot in the apartment. Growing vegetables at home, garden on the windowsill, lack of light and trace
RF2DM09EF–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RM2CDAKW7–. Journal of agricultural research . Journal of Agricultural Research Vol. XVIII, No. 4 PLATE 13 Bacterium glycineum: A.—Natural infection on soybean pods. Note also seed infection in pod atright. X I. B.—Artificial infection on soybean pods inoculated with type strain. X 2. PLATE 14 Bacterium glycineum: A.—Six-day-old potato agar slant culture, strain E. B and C.—Six-day-old potato agar slant cultures, type strain. Note difference indegree of surface marking. Bacterial Blight of Soybean Plate 14. Journal of Agricultural Researc Vol. XVlll, No. 4 Bacterial Blight of Soybean Plate 15
RMMCKAK0–. Fig. 196. — Bacterial blight of walnuts. After R. E. Smith. Two treatments with Bordeaux mixture, after thorough removal of diseased parts, have been known to prevent 50 per cent of the loss. ^ The second spraying should be given when the nuts are firmly set. Care should be taken to select resistant trees for propagation. WILLOW Tar spot (Rhytismose). See maple. Rust {Melampsora saliciscaprm (Pers.) Wint.). — Of tree rusts this is one of the most abundant, occurring as > U.S. Dept. Agr. Yearbook, p. 98, 1904.
RF2J161NM–Sick tomato fruit affected by disease vertex rot near ripe red tomatoes on wooden background
RMT1HDJ1–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 119 Fig. 43.—Bacterial blight of barley. Infection of barley leaves results in the production of translucent stripes of various sizes; the stripes may become covered with small, yellow granules of dried bacterial ooze. of leaves may be similar. Ordinarily the disease does not attract attention until plants are about two-thirds grown. Under humid conditions, especially early in the morning, droplets of milky bacterial exudate may be see
RMPG405H–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. SCHIZOMYCETES. BACTERIA 119 a bacterial disease of the oleander in California, and from cul- tural characters of the organism isolated, as well as from inocula- tion experiments, he considers this organism to be Pseudomonas Olccr. On the other hand, Erwin Smith would regard this as improbable, since he obtained no infections on oleander. He would seem to suggest that the organism isolated in California may have been the organism of crown gall (see p. 114). VI. BEAN BLIGHT Pseudomon
RF2PH25CK–Yellowed dried leaves of pepper grown in a pot in the apartment. Growing vegetables at home, garden on the windowsill, lack of light and trace
RF2DM091A–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RM2CEMPAC–. Journal of Agricultural Research. fig., 21 pi. Bibliography, p. 40-41. (6) Smith, Erwin F. 1905. BACTERIA IN RELATION TO PLANT DISEASES. V. I. Washington, D. C.(Carnegie Inst. Wash. Pub. 27, pt. i.) (7) 1898. DESCRIPTION OF BACILLUS PHASEOLI, N. SP., WITH SOME REMARKS ON RELATED SPECIES. In Proc. Amer. Assoc. Adv. Sci., 46th Meeting,1897, p. 288-290. (8) Sturgis, W. C. 1899. A BACTERIAL BLIGHT OP LIMA BEANS. In Conn. AgT. Exp. Sta. 22d. Ann. Rpt., 1898, p. 262-263. PLATE I A.-—A comparison of bacterial spot (left) with bacterial blight (right) in King olthe Garden lima bean. The bacterial sp
RMMCKW97–. Figure 26.—Pea seeds affected by bacterial blight. Note watersoaked areas. Ascochyta Blight Ascochyta pisi, A. pinodella, and Mycosphaerella pinocles Ascochyta blight is caused by one or more of the fungi named above. This disease is widespread and, occasionally, has been a serious threat to the seed and green-pea industries in areas of abundant moisture. Appearance—Somewhat similar though distinguishable, symptoms are caused by the three parasites. The leaf spots caused by M. pinodes are purplish with indefinite margins. Fusion of the spots results in irregular brownish-purple blotches. The
RMT1HXYE–Diseases of economic plants (1910) Diseases of economic plants diseasesofeconom00stev Year: 1910 450 DISEASES OF ECONOMIC PLANTS upon the Pacific coast, where it often causes a loss of 50 per cent of the crop. It may be recognized as black cankered spots upon the young nuts, Avhich fall prematurely, or by sunilar spots upon the young green shoots. In seasons favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced. Fig. 196. — Bacterial blight of walnuts. After R. E. Smith. Two treatments with Bordeaux mixture, after thorough removal of diseased
RMPG3NHN–. Manual of fruit diseases . Fruit. PEAR DISEASES 327 and a uniform browning of all the foliage simultaneously. Cankers most frequently surround the base of a spur (Fig. 85), watersprout, or small limb (Figs. 87 and 88). Cause. Fire-blight is caused by the bacterial pathogene Bacillus amylovorus. This pathogene passes its entire life-history within the tissues of the liv- ing host, except, of course, during dissemination from one place to another. It cannot survive long, even in the dead parts of the plant attacked. The organism passes the winter in an in- active condition in the tissues along
RF2PGFAFD–Yellowed dried leaves of pepper grown in a pot in the apartment. Growing vegetables at home, garden on the windowsill, lack of light and trace
RF2DM09ER–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRH156M–. Bulletin. Agriculture. Fig. 1.—Leaves of Geranium Affected with Bacterial Blight.. Fig. 2.—Leaf of Begonia Affected with Bacterial Blight.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Plant Industry. Washington : G. P. O.
RMMCK9PY–. Fig. 215. — Bacterial blight of walnuts. After R. E. Smith. favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced. Spraying is of questionable value. Care should be taken to select resistant trees for propagation. Melaxuma ^-^ (Dothiorella gregaria Sacc). — In this dis- ease, reported from California, black sunken cankers develop on the trunk and larger limbs, and the leaves on the smaller limbs suddenly wilt. The first indication of disease is often a black area like a blotch of tar on the gray bark. Excision and disinfection should be practice
RMT1HCEF–Diseases of small grain crops Diseases of small grain crops in Illinois diseasesofsmallg35boew Year: 1939 BOEWE: DISEASES OF SMALL GRAIN CROPS 101 Fig. 39.—The scald disease of rye. Infection of leaves by a parasitic fungus results in the appearance of oval, bleached spots, which greatly reduce the food-making capacity of affected leaves. for other diseases ought to aid in controlling it, if it should become a serious factor in rye production. BACTERIAL BLIGHT Bacterium translucens secalis Although the bacterial blight of rye is the same disease as the bacterial blight of barley, only a s
![. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. â "^ ^ b "^ O »' e @. Fig. 59. Orchid Diseases. o. Volutella blight of Bletia (after Halsted), b. rust, Hemileia oncidi (after Griffon and Maublanc), c. Sobralia anthracnose (after Halstrd), d. bacterial leaf spot, partly diseased leaf with cells invaded by the organism (after Hori, S.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the Stock Photo](https://c8.alamy.com/comp/PG0G7N/diseases-of-greenhouse-crops-and-their-control-vegetables-plant-diseases-plant-diseases-quot-b-quot-o-e-@-fig-59-orchid-diseases-o-volutella-blight-of-bletia-after-halsted-b-rust-hemileia-oncidi-after-griffon-and-maublanc-c-sobralia-anthracnose-after-halstrd-d-bacterial-leaf-spot-partly-diseased-leaf-with-cells-invaded-by-the-organism-after-hori-s-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-PG0G7N.jpg ". Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. â "^ ^ b "^ O »' e @. Fig. 59. Orchid Diseases. o. Volutella blight of Bletia (after Halsted), b. rust, Hemileia oncidi (after Griffon and Maublanc), c. Sobralia anthracnose (after Halstrd), d. bacterial leaf spot, partly diseased leaf with cells invaded by the organism (after Hori, S.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the Stock Photo")
RMPG0G7N–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. â "^ ^ b "^ O »' e @. Fig. 59. Orchid Diseases. o. Volutella blight of Bletia (after Halsted), b. rust, Hemileia oncidi (after Griffon and Maublanc), c. Sobralia anthracnose (after Halstrd), d. bacterial leaf spot, partly diseased leaf with cells invaded by the organism (after Hori, S.).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the
RF2DM0A7B–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRH1579–. Bulletin. Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate XVII,. Fig. 1.—Leaves of Geranium Affected with Bacterial Blight.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Plant Industry. Washington : G. P. O.
RMMCKW9W–. 1 1 11 1 i 1 Figure 12.—Bacterial blight of barley. Note droplets of bacterial ooze. conditions, such as following artificial inoculation, it can reduce the yield by as much as 75 per cent, but under ordinary farm conditions the disease has not been known to cause much damage in Western Canada. Appearance—Seedlings grown from infected seed are at first chlorotic and become dotted with brown spots. The chlorosis may occur in stripes occupying various proportions of the leaf. Such plants are often stunted, but if they are only lightly affected, the stunting is not very noticeable. The disease
RMT1H795–Diseases of field crops in Diseases of field crops in the Prairie Provinces disoffieldcrop Year: 1957 1 1 11 1 i 1 Figure 12.—Bacterial blight of barley. Note droplets of bacterial ooze. conditions, such as following artificial inoculation, it can reduce the yield by as much as 75 per cent, but under ordinary farm conditions the disease has not been known to cause much damage in Western Canada. Appearance—Seedlings grown from infected seed are at first chlorotic and become dotted with brown spots. The chlorosis may occur in stripes occupying various proportions of the leaf. Such plants are o
RMPG3NEK–. Manual of fruit diseases . Fruit. PEAR DISEASES 329. Fig. 90. — Fire-blight on apple fruit; drops of bacterial ooze on tlie surface. Suckers which arise from the crown, at or below the surface of the soil, are often bhghted, allow- ing the bacteria entrance into the bark of the roots. Trees may die from such a form of attack. Grafts are especially disposed to blight during the first year or so on account of their rapid and succu- lent growth. Wounds in the larger limbs or the body of the tree may serve as centers of cankers. Here the bacteria are carried by the bark-boring beetle and deposit
RF2DM0A6C–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRGW4W1–. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 1.—Leaves of Geranium Affected with Bacterial Blight.. Fig. 2.—Leaf of Begonia Affected with Bacterial Blight.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Washington Govt. Print. Off
RMMCKX0K–. Fig. 39.—The scald disease of rye. Infection of leaves by a parasitic fungus results in the appearance of oval, bleached spots, which greatly reduce the food-making capacity of affected leaves. for other diseases ought to aid in controlling it, if it should become a serious factor in rye production. BACTERIAL BLIGHT Bacterium translucens secalis Although the bacterial blight of rye is the same disease as the bacterial blight of barley, only a special variety of the bac- terium that causes the disease can attack rye. Hence diseased rye does not endanger barley, and diseased barley does not en
RMT1HCG7–Diseases of small grain crops Diseases of small grain crops in Illinois diseasesofsmallg35boew Year: 1939 102 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 85 danger rye. Bacterial blight was first observed on rye near Bloomington, 111., in 1921. It is, however, of no economic im- portance. A full discussion of appearance, life history and control of bacterial blight is given under barley diseases (page 82). SCAB Gibberella Sanbinetii Rye scab, called also Fusarium blight and head blight, is the same disease as scab on other cereals. A full discussion is given under wheat (page 28). Badly disease
RMPG3NE8–. Manual of fruit diseases . Fruit. Fig. 90. — Fire-blight on apple fruit; drops of bacterial ooze on tlie surface. Suckers which arise from the crown, at or below the surface of the soil, are often bhghted, allow- ing the bacteria entrance into the bark of the roots. Trees may die from such a form of attack. Grafts are especially disposed to blight during the first year or so on account of their rapid and succu- lent growth. Wounds in the larger limbs or the body of the tree may serve as centers of cankers. Here the bacteria are carried by the bark-boring beetle and deposited in their borings
RF2DM0A1P–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRGW4WE–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 226, Bureau of Piant Industry, U. S. Dept. cf Agriculture. Plate XVI. Fig. 1.—Leaves of Geranium Affected with Bacterial Blight.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Washington Govt. Print. Off
RMMCKWCD–. Fig. 43.—Bacterial blight of barley. Infection of barley leaves results in the production of translucent stripes of various sizes; the stripes may become covered with small, yellow granules of dried bacterial ooze. of leaves may be similar. Ordinarily the disease does not attract attention until plants are about two-thirds grown. Under humid conditions, especially early in the morning, droplets of milky bacterial exudate may be seen on the surface of diseased spots. These droplets dry into hard, yellowish, resinous granules, which may be removed easily as dry flakes from the leaf surfaces. T
RMT1H4AH–Diseases of truck crops Diseases of truck crops / Ralph E. Smith diseasesoftruckc119smit Year: 1940 Diseases of Truck Crops 25 CANTALOUPE See 'Cucurbits' (p. 45) CARROT Bacterial Blight.—In this disease, the principal damage is caused in the flower heads of carrots grown for seed, which may be entirely killed. • ..jg|i§ BmiS'V Jfl • ' '1 J ) k JSk JH B 1 J if Fig, 12.—Spores of carrot-blight fungi: A, Cercospora spores; B, Macrosporium spores. (Greatly enlarged.) Irregular, dead spots appear on the leaves, dark-brown lines on the peti- oles and stems, and a blighting on the floral parts.
RF2DM0A3X–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRDYW07–. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. 414 GENETICS IN RELATION TO AGRICULTURE ble plants; neither are there observable differences in time of germination, rate of development or period of maturity. Furthermore, the resistance is specific; varieties that resist the wilt may be susceptible to bacterial blight and vice versa. That wilt resistance is a heritable character was strikingly dem- onstrated by Orton's creation of a wilt-resistant edible watermelon, Citrullus vulgaris. All watermelons appear to be very susceptible to. Please note
![. Fig. 215. â Bacterial blight of walnuts. After R. E. Smith. favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced. Spraying is of questionable value. Care should be taken to select resistant trees for propagation. Melaxuma ^-'^ (Dothiorella gregaria Sacc). â In this dis- ease, reported from California, black sunken cankers develop on the trunk and larger limbs, and the leaves on the smaller limbs suddenly wilt. The first indication of disease is often a black area like a blotch of tar on the gray ])ark. Excision and disinfection should l)e pract Stock Photo](https://c8.alamy.com/comp/MCKAGF/fig-215-bacterial-blight-of-walnuts-after-r-e-smith-favorable-to-blight-much-of-the-terminal-growth-is-killed-and-the-succeeding-crop-is-thereby-reduced-spraying-is-of-questionable-value-care-should-be-taken-to-select-resistant-trees-for-propagation-melaxuma-dothiorella-gregaria-sacc-in-this-dis-ease-reported-from-california-black-sunken-cankers-develop-on-the-trunk-and-larger-limbs-and-the-leaves-on-the-smaller-limbs-suddenly-wilt-the-first-indication-of-disease-is-often-a-black-area-like-a-blotch-of-tar-on-the-gray-ark-excision-and-disinfection-should-le-pract-MCKAGF.jpg ". Fig. 215. â Bacterial blight of walnuts. After R. E. Smith. favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced. Spraying is of questionable value. Care should be taken to select resistant trees for propagation. Melaxuma ^-'^ (Dothiorella gregaria Sacc). â In this dis- ease, reported from California, black sunken cankers develop on the trunk and larger limbs, and the leaves on the smaller limbs suddenly wilt. The first indication of disease is often a black area like a blotch of tar on the gray ])ark. Excision and disinfection should l)e pract Stock Photo")
RMMCKAGF–. Fig. 215. â Bacterial blight of walnuts. After R. E. Smith. favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced. Spraying is of questionable value. Care should be taken to select resistant trees for propagation. Melaxuma ^-'^ (Dothiorella gregaria Sacc). â In this dis- ease, reported from California, black sunken cankers develop on the trunk and larger limbs, and the leaves on the smaller limbs suddenly wilt. The first indication of disease is often a black area like a blotch of tar on the gray ])ark. Excision and disinfection should l)e pract
RMT1HBD8–Diseases of fruits and nuts Diseases of fruits and nuts diseasesoffruits120smit Year: 1941 98 California Agricultural Extension Service [Cir. 120 sionally spreads at blooming time; in extreme cases it destroys a large proportion of the blossoms. Blast of blossoms (fig. 47) is particularly bad on the Winter Nelis variety. Unlike fire blight, vhich the disease re- sembles in some respects, blast does not usually kill the twig beyond the blossom spur and does not produce bacterial exudate. Infection may take Fig. 48.—Blast of pear on twig and branch. place in the dormant season through wound
RF2CJF1YM–vertex rot in tomato fruits develops when there is lack of calcium and insufficient watering of plants.
RF2DM5KWW–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRG33XR–. California fruits and how to grow them. Fruit culture. How to Grow Them 409 Bacterial Blig-ht the growth of the tree it can be smoothly and filling the hole with bluestone solution, removed, the wound treated with the Bor- hut some trees have been killed in this way.. Effect upon the nuts of the bacterial blight of walnuts. deaux Mixture, and the knot will not lUucstone can be used with least danger reappear at the same place. Success has also when the tree is dormant, been had with Iiorina: a hole into the knot. Please note that these images are extracted from scanned page images that may h
![. Fig. 30.—A-C, Effect of mosaic disease of stock on leaves; D, normal leaf. tiorum. See "Cottony Mold" p. 78). Affected plants and their roots should be destroyed. STOCK Bacterial Blight.—Young seedlings affected with this disease sud- denly wilt and collapse. On older plants, large, irregular, elongated, water-soaked areas appear on the stems and branches, usually near the ground or at leaf scars. These lesions or cankers later become sunken and dark brown. The woody tissue is involved to a certain extent. Affected plants wither and die or often break off at stem cankers near the g Stock Photo](https://c8.alamy.com/comp/MCK9GD/fig-30a-c-effect-of-mosaic-disease-of-stock-on-leaves-d-normal-leaf-tiorum-see-quotcottony-moldquot-p-78-affected-plants-and-their-roots-should-be-destroyed-stock-bacterial-blightyoung-seedlings-affected-with-this-disease-sud-denly-wilt-and-collapse-on-older-plants-large-irregular-elongated-water-soaked-areas-appear-on-the-stems-and-branches-usually-near-the-ground-or-at-leaf-scars-these-lesions-or-cankers-later-become-sunken-and-dark-brown-the-woody-tissue-is-involved-to-a-certain-extent-affected-plants-wither-and-die-or-often-break-off-at-stem-cankers-near-the-g-MCK9GD.jpg ". Fig. 30.—A-C, Effect of mosaic disease of stock on leaves; D, normal leaf. tiorum. See "Cottony Mold" p. 78). Affected plants and their roots should be destroyed. STOCK Bacterial Blight.—Young seedlings affected with this disease sud- denly wilt and collapse. On older plants, large, irregular, elongated, water-soaked areas appear on the stems and branches, usually near the ground or at leaf scars. These lesions or cankers later become sunken and dark brown. The woody tissue is involved to a certain extent. Affected plants wither and die or often break off at stem cankers near the g Stock Photo")
RMMCK9GD–. Fig. 30.—A-C, Effect of mosaic disease of stock on leaves; D, normal leaf. tiorum. See "Cottony Mold" p. 78). Affected plants and their roots should be destroyed. STOCK Bacterial Blight.—Young seedlings affected with this disease sud- denly wilt and collapse. On older plants, large, irregular, elongated, water-soaked areas appear on the stems and branches, usually near the ground or at leaf scars. These lesions or cankers later become sunken and dark brown. The woody tissue is involved to a certain extent. Affected plants wither and die or often break off at stem cankers near the g
RMT1HBJD–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 88 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 48 fections the entire leaf dries up and turns brown, but the halo usually is distinguishable even on the dead leaf. On the chaff each minute spot of infection is surrounded by a light green to yellowish-green halo; if an entire glume is infected, the tissue between the veins turns yellow and becomes translucent. No bacterial exudate is present on the spots. Life History.—Tests have shown that halo blight bacteria live over winter on the oat
RF2DM5A0F–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
![. California fruits and how to grow them. Fruit culture. Effect upon the nuts of the bacterial blight of walnuts. deaux Mixture, and the knot will not lUucstone can be used with least danger reappear at the same place. Success has also when the tree is dormant, been had with Iiorina: a hole into the knot. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Wickson, Edward James, 1848- [from old catalog]. San Francisco, The Paci Stock Photo](https://c8.alamy.com/comp/RG33XA/california-fruits-and-how-to-grow-them-fruit-culture-effect-upon-the-nuts-of-the-bacterial-blight-of-walnuts-deaux-mixture-and-the-knot-will-not-luucstone-can-be-used-with-least-danger-reappear-at-the-same-place-success-has-also-when-the-tree-is-dormant-been-had-with-iiorina-a-hole-into-the-knot-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-wickson-edward-james-1848-from-old-catalog-san-francisco-the-paci-RG33XA.jpg ". California fruits and how to grow them. Fruit culture. Effect upon the nuts of the bacterial blight of walnuts. deaux Mixture, and the knot will not lUucstone can be used with least danger reappear at the same place. Success has also when the tree is dormant, been had with Iiorina: a hole into the knot. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Wickson, Edward James, 1848- [from old catalog]. San Francisco, The Paci Stock Photo")
RMRG33XA–. California fruits and how to grow them. Fruit culture. Effect upon the nuts of the bacterial blight of walnuts. deaux Mixture, and the knot will not lUucstone can be used with least danger reappear at the same place. Success has also when the tree is dormant, been had with Iiorina: a hole into the knot. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Wickson, Edward James, 1848- [from old catalog]. San Francisco, The Paci
RMMCRBYE–. Fig. 3. Present .known distribution of the alfalfa nematode, Tylenchus dipsaci, according to records of the Plant Disease Survey. Recent literature; Godfrey, G. H., and M. B. McKay. The stem nematode Tylenchus dipsaci on v/ild hosts in the Northw-.-st. U. S. Dept. Agr. Bui. 1225): 1-9. Mar. 1924. Dissemination of the stem and bulb infesting com- .posites. Jour.- i^gr. Res. 28: 473-478. 1-3- May 3, 1924. BACTERIAL ELIGHT CAUSED BY' BACT^RIbl-r Mt^DICAGINIS (SACK.) EPS. Bacterial blight v/as reported as occurring in Uobraska, Idaho, and Washington, but did practically no damage. It is interest
RF2DM095E–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRHTN92–. Better fruit. Fruit-culture. 1914 BETTER FRUIT Page 13. The Battle of Cider Mill Ridj (Courtesy of tlie SpokecmaD-Review) Some Factors in the Control of Pear Blight By P. J. OTiaia, Chief in Charge of Agr THE interesting subject of pear blight and its control has been so frequently discussed before the meetings of the various horticultural organizations of the Pacific Coast and Pacific Northwest that I take it for granted that practically every grower of pome fruits fully understands the nature of this disease, which should be properly termed the Bacterial Blight of Pome F'ruits. Besides att
RMMCKX25–. Fig. 21.—Halo blight of oats. Bacterial infection of oats leaves results in the appearance of yellow-green, oval spots surrounded by clear, translucent halos.
RF2DM0MAC–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RF2CG10K0–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRDA7PP–. Southern field crops (exclusive of forage plants). Agriculture. COTTON BISMASES 419 389. Sore-shin, or damping off (Rhizoctonia). ^ The fungus causing this disease penetrates the stems of the. Fig. 184. — Diseased Leaves, Boll, and Stems op Cotton Plant. Showing several forms of bacterial blight, known on the leaves as angu- lar leaf-spot; on the stems as black arm; and on the bolls as bacterial boll-rot. very young cotton plants just below the surface of the soil. Some of the diseased plants die, while others recover. It is worse in wet weather. Any method of hastening the drying of the sur
RMMCK98J–. Fig. 47.—Blast of pear on blossoms. Trees already on this root which are persistently bad with black end may be cured by inarching with French pear (Pyrus communis) seedlings and cutting off the connection with the original Japanese root after the inarches are well established. This is not very practical, however, on orchard trees. It is probably better to replace such trees with new ones on P. communis stocks. Those having resistance to fire blight (p. 105) are most desirable. Blast.—This bacterial disease may kill the dormant buds and occa-
RF2CG12E8–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRE40HD–. Vegetable forcing. Forcing (Plants); Vegetable gardening. 296 VEGETABLE FORCING of greenhouse tomatoes. Bordeaux mixture is appar- ently the best spray material to combat this disease. Various other diseases, such as Fusarium wilt, anthrac- nose, mosaic or calico leaf and bacterial blight, are often found on greenhouse tomatoes, but the most important diseases are the Leaf Mold and Blossom-End Rot.. Fig. 95.— Each paper box holds six pounds of tomatoes, and eight boxes may be packed in a standard bushel box, such as is usci in the Boston district. Marketing.—Greenhouse tomatoes should not be
RMMCKA3F–. Fig. 99. — Cantaloupe showing complete death of vines attacked by leaf blight. After Blinn. Wilt, fusariose (Fusarium vasinfectum Atk. var. nivea E. F. Smith). — Under watermelon this wilt is sufficiently discussed. It is not nearly so frequently met as the bacterial cantaloupe wilt. See below. Wilt, bacillose {Bacillus tracheiphilis E. F. Smith).— With the cucumber and squash, as with the watermelon, the wilt is serious. The attack in first stages causes the 1 Blinn, P. K., Col. Agr. Exp. Sta. Bui. 104, November, 1905.
RF2CG11TE–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RM2AX5WRF–Horticulture, a text book for high schools and normals, including plant propagation; . Fig. 12:1—Netting around the base ot tree to protectfrom mice, rabbits, etc. (Indiana Station.) BITTER ROT 199 Twig Blight.—Pears, apples and quinces are subject to attacksof a bacterial disease Imown as twig blight. Small twigs of treesare seen to turn brown after the leaves have formed. This mayprove very serious, as the attacks may extend into the largerbranches and destroy nearly all the new growth each season. Nosatisfactory remedy for this disease has yet been found. Sprayingwith Bordeaux mixture for t
RMMCK9AB–. Fig. 13.—Bacterial gummosis of apricot. trees are killed, especially in the foothill districts. During other seasons, the disease can scarcely be found. If the cankers are not too numerous or too large, they may be cut out, with care to remove all the diseased tissue and disinfect the tools and cuts with the mercuric disinfectant used in pear-blight work (p. 159). Dead or nearly dead limbs should be cut off and dead or badly crippled trees removed. Wounds should be covered with bordeaux paste (p. 157). Whitewashing the trunks of young trees in the fall may prevent some of the infection which
RF2CG10TD–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RM2AFPH4M–. The fruit-growers guide-book. Branch of pear infected with blig-ht through the flowerclusters. 170 The Fruit-Growers Guide-Book known 1o attack the plum. It is known by a variety ofnames, such as twig blight, fire blight, blossom blight, etc.It is a bacterial disease, the organisms working entirelywithin the host, where it cannot be reached by any sprayor wash that may be applied.. Body of pear tree infected with blig-ht through the care-less removal of a limb. Pruning tools should be sterilized,likewise the wounds, and then covered with paint, Avax ortanglefoot. The disease usually appears
RMMCKAXE–. Fig. 99. — Cantaloupe showing complete death of vines attacked by leaf blight. After Blinn. Wilt, fusariose (Fusarium vasinfectum, Atk. var. nivea E. F. Smith). — Under watermelon this wilt is sufficiently discussed. It is not nearly so frequently met as the bacterial cantaloupe wilt. See below. Wilt, bacillose {Bacillus tracheiphilis E. F. Smith). — With the cucumber and squash, as with the watermelon, the wilt is serious. The attack in first stages causes the 1 Blinn, P. K., Col. Agr. Exp. Sta. Bui. 104, November, 1905.
RF2CG0YCK–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RM2ANJ4C7–Annual report of the Maine Agricultural Experiment Station . l Endomyces decay Z^l Rhizopus decay 368 Other apple rots ; 368 Diseases of the Wood 368 Canker and Twig-blight 368 Sphaeropsis canker 372 Bitter-rot canker Z7Z Myxosporium canker • Z72) Coryneum and Phoma cankers 374 Cytospora canker 374 Blight (bacterial) canker 374 Crown gall • 375 Wood destroying fungi 2>7^ Orchard Sanitation, Sprays and Spraying 377 Preparation of Sprays 379 Bordeaux mixture • 3^0 Lime-sulphur sprays • > •. 384 When to Spray and What to Use 39© How TO Spray 391 fcr -- ^^ ^ » A H y >» % ^-^ 1 O -— -^ 1
RMMCK9B0–. Fig. 5.—Exanthema dieback of apple. larger twigs and branches to a certain extent, killing the bark and pro- ducing a sticky ooze upon the surface, but not so much as in blight of pear trees, which is the same bacterial disease. Both are caused by Fhy- tomonas amylovora. The Transcendent Crab and some varieties like Red Astrachan, Alexander, and Spitzenburg are very susceptible. Delicious, Gravenstein, Yellow Bellflower, and Yellow Newtown are more resistant. Treat as in pear blight (p. 101). Worthless apple trees which may har- bor blight in the vicinity of pear orchards should be removed.
RF2CG10NA–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
![. Germain : [catalog] . oubles is known as the plant disease section. Here we find the common mildew, theblights, the rusts, and the various other fungous and bacterial diseases. The fungous diseases are comparatively easy to control, while thebacterial diseases such as walnut blight, pear blight, etc., are almost impossible to control. Class 4. There are also the classes among which are included the root worms which cannot be controlled by insecticides, andthe rodents as typified by the gophers and squirrels. At the bottom of this page you will find what is termed,Germains Spraying Guide. Thi Stock Photo](https://c8.alamy.com/comp/2CE70TP/germain-catalog-oubles-is-known-as-the-plant-disease-section-here-we-find-the-common-mildew-theblights-the-rusts-and-the-various-other-fungous-and-bacterial-diseases-the-fungous-diseases-are-comparatively-easy-to-control-while-thebacterial-diseases-such-as-walnut-blight-pear-blight-etc-are-almost-impossible-to-control-class-4-there-are-also-the-classes-among-which-are-included-the-root-worms-which-cannot-be-controlled-by-insecticides-andthe-rodents-as-typified-by-the-gophers-and-squirrels-at-the-bottom-of-this-page-you-will-find-what-is-termedgermains-spraying-guide-thi-2CE70TP.jpg ". Germain : [catalog] . oubles is known as the plant disease section. Here we find the common mildew, theblights, the rusts, and the various other fungous and bacterial diseases. The fungous diseases are comparatively easy to control, while thebacterial diseases such as walnut blight, pear blight, etc., are almost impossible to control. Class 4. There are also the classes among which are included the root worms which cannot be controlled by insecticides, andthe rodents as typified by the gophers and squirrels. At the bottom of this page you will find what is termed,Germains Spraying Guide. Thi Stock Photo")
RM2CE70TP–. Germain : [catalog] . oubles is known as the plant disease section. Here we find the common mildew, theblights, the rusts, and the various other fungous and bacterial diseases. The fungous diseases are comparatively easy to control, while thebacterial diseases such as walnut blight, pear blight, etc., are almost impossible to control. Class 4. There are also the classes among which are included the root worms which cannot be controlled by insecticides, andthe rodents as typified by the gophers and squirrels. At the bottom of this page you will find what is termed,Germains Spraying Guide. Thi
RMMCK98K–. Fig. 48.—Blast of pear on twig and branch. place in the dormant season through wounds, including those on cluster bases; sometimes cankers of considerable size (fig. 48) are produced, but they are more superficial than blight cankers. The affected bark turns light brown to tan in color and eventually sloughs off, often without killing the inner bark. Blast of pear is caused by Phytonionas syringae— essentially the same organism as that which causes blight of lilac in some places, blast of pear and apple in the eastern states, blast and black pit of citrus, and bacterial gummosis of stone fru
RF2CG0TNM–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRCDP8W–. Diseases of field crops. Plant diseases. Diseases of Field Crops 15 tion, or renovation, and applying stable manure. When the stand gets too thin to be profitable and has to be ploughed out, every- alfalfa plant should be destroyed and, if possible, the land should be kept in some clean-cultivated crop for two or three years. BARLEY6 Bacterial Blight.—The disease attacks the young leaves in the form of small, water-soaked spots which enlarge into irregular, brown blotches. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili
RMMCK98G–. Fig. 58.—Bacterial canker of plum. Where wild plums or cherries are of any value, the knots should be very thoroughly cut out as soon as they appear. If this is not sufficient to keep the disease in check, the trees may be sprayed with lime-sulfur 8-100 (p. 160) just as the buds are swelling. Brown Rot.—This is the same fungus disease as in the apricot, peach, and cherry, caused by Sclerotinia fructicola or S. laxa. Symptoms in the prune and plum are similar to those in other hosts. In the blossom-blight phase of the disease (fig. 15, p. 31), the blossoms are blasted and with- ered just as t
RF2CG0W2K–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRCDP95–. Diseases of field crops. Plant diseases. 6 California Agricultural Extension Service [Cir. 121 DISEASES BY CROPS ALFALFA* Bacterial Blight.—Brown, elongated, dead spots on the stems of al- falfa plants form the symptoms of this disease. The spots may be small and shallow or some of them large and deep enough to kill the stems. Similar but roundish spots may appear on the leaves. Bacterial blight,. Fig. 1.—A group of alfalfa plants affected with bacterial wilt. The dwarfed condition of the plants and the abnormality of the leaves are clearly evident when compared with the healthy plants shown
![. Fig. 31.—Loquat scab. tree. This is the same bacterial disease as fire blight of pear, apple, and other related hosts. Affected branches should be cut out well below the blighted part and the tools and cuts disinfected. See "Fire Blight, Blight" under "Pear" (p. 101). Scab.—Dark, velvety fungus spots sometimes develop on young fruit and leaves (fig. 31) and cause the fruits to be more or less deformed. This is caused by Fusicladium criohotryae and is similar to pear and apple scab, caused by a closely related fungus. Scab of loquats is not usually important enough to warr Stock Photo](https://c8.alamy.com/comp/MCK99K/fig-31loquat-scab-tree-this-is-the-same-bacterial-disease-as-fire-blight-of-pear-apple-and-other-related-hosts-affected-branches-should-be-cut-out-well-below-the-blighted-part-and-the-tools-and-cuts-disinfected-see-quotfire-blight-blightquot-under-quotpearquot-p-101-scabdark-velvety-fungus-spots-sometimes-develop-on-young-fruit-and-leaves-fig-31-and-cause-the-fruits-to-be-more-or-less-deformed-this-is-caused-by-fusicladium-criohotryae-and-is-similar-to-pear-and-apple-scab-caused-by-a-closely-related-fungus-scab-of-loquats-is-not-usually-important-enough-to-warr-MCK99K.jpg ". Fig. 31.—Loquat scab. tree. This is the same bacterial disease as fire blight of pear, apple, and other related hosts. Affected branches should be cut out well below the blighted part and the tools and cuts disinfected. See "Fire Blight, Blight" under "Pear" (p. 101). Scab.—Dark, velvety fungus spots sometimes develop on young fruit and leaves (fig. 31) and cause the fruits to be more or less deformed. This is caused by Fusicladium criohotryae and is similar to pear and apple scab, caused by a closely related fungus. Scab of loquats is not usually important enough to warr Stock Photo")
RMMCK99K–. Fig. 31.—Loquat scab. tree. This is the same bacterial disease as fire blight of pear, apple, and other related hosts. Affected branches should be cut out well below the blighted part and the tools and cuts disinfected. See "Fire Blight, Blight" under "Pear" (p. 101). Scab.—Dark, velvety fungus spots sometimes develop on young fruit and leaves (fig. 31) and cause the fruits to be more or less deformed. This is caused by Fusicladium criohotryae and is similar to pear and apple scab, caused by a closely related fungus. Scab of loquats is not usually important enough to warr
RF2CG0YMN–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRCC6A5–. Diseases of economic plants. Plant diseases. 450 DISEASES OF ECONOMIC PLANTS upon the Pacific coast, where it often causes a loss of 50 per cent of the crop. It may be recognized as black cankered spots upon the young nuts, Avhich fall prematurely, or by sunilar spots upon the young green shoots. In seasons favorable to blight much of the terminal growth is killed and the succeeding crop is thereby reduced.. Fig. 196. — Bacterial blight of walnuts. After R. E. Smith. Two treatments with Bordeaux mixture, after thorough removal of diseased parts, have been known to prevent 50 per cent of the
RMMCKWCP–. Fig. .31.—Halo blight of oats. Bacterial infection of oat leaves results in the appearance of yellow-green, oval spots surrounded by clear, trans- lucent hales. alive for at least 2 years, and it seems quite possible that they may live over in the soil and on diseased plant refuse for an equal period. Infection in oat fields shows an increase after rainy periods, indicating that moisture favors development and spread of the disease. Both rain and wind easily may spread the bacteria from plant to plant as well as to different parts of the same plant. Insects play an important part in spreadin
RF2CG12J1–Tomato fruits damaged by bacterial disease. Moisture cracked tomatoes. Tomatoes dried up from pests.
RMRCCK11–. Diseases of field crops in the Prairie Provinces. Plants; Cultures de plein champ; Cultures de plein champ; Plantes. DISEASES OF FIELD CROPS. Figure 26.—Pea seeds affected by bacterial blight. Note watersoaked areas. Ascochyta Blight Ascochyta pisi, A. pinodella, and Mycosphaerella pinocles Ascochyta blight is caused by one or more of the fungi named above. This disease is widespread and, occasionally, has been a serious threat to the seed and green-pea industries in areas of abundant moisture. Appearance—Somewhat similar though distinguishable, symptoms are caused by the three parasites. Th
Search Results for Bacterial blight Stock Photos and Images (491)
Page 4 of 5