RMPG4EX9–. Diseases of economic plants . Plant diseases. 152 DISEASES OF ECONOMIC PLANTS toms to the knot, may be distinguished from it by the absence of wartlike growths upon the surface of affected twigs. As an effective measure all diseased canes may be cut out and burned, cutting well below the diseased area.. FlQ. 64. — Currant leaf spot (septoriose). After Stewart and Eustace. Septoriose 1 [ (Septoria Ribis Desm.) The leaf spots Cercosporose J [ {Cercospora angulata Wint.) The " currant leaf spot" is a term applied to a peculiar spotting of the leaves of both currants and gooseberries.
RMT1JFK2–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taub Year: 1918 C .,'• • Fig. 47. Bean Diseases. a. and 6. Rust on leaf and pods. c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, wmter spores f. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (f. d. and/, after Whetzel), g. Cercospora leaf spot, h. Isariopsis riseola leat spot, i. conidiophores and conidia of Isariopsis.
RMMAAKPJ–. Dr. K.W. van Gorkom's Oost-Indische cultures. Opnieuw uitg. onder redactie van H.C. Prinsen Geerligs. [Door J.P. van der Stock et al.] . Fig. 84. Blad met Cercospora eoffeicola. Fig. 85. Koffiestengel met Cercospora eoffeicola.
RFPJE1E8–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AMNANY–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RF2AT375F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRH1547–. Bulletin. Agriculture. Fig. 2.—Buds of Yucca Blighted by Cercospora Floricola.. Fig. 3.—Inflorescence of Yucca Blighted by Cercospora Floricola.. 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.
RFRK2WE8–Banana Black Sigatoka Leaf Symptoms
RMPG45JE–. The fungi which cause plant disease . Plant diseases; Fungi. 592 THE FUNGI WHICH CAUSE PLANT DISEASE P. oiyzse; but morphological characters and inoculation experi- ments indicate their identity on various other grasses. P. caudata A. & S. occurs on cacao. To the Moniliacese-scolecosporae belongs only one genus: Cercosporella Saccardo Hyaline throughout; conidiophores simple or branched; conidia filiform, many-septate. Distinguished from Cercospora only in color. The genus contains some seventy species of parasites. C. persicae Sacc."* Conidiophores cespitose, on discolored areas, f
RMT1HH37–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taub Year: 1918 Fig. 20. Beet Diseases. a. Crown gall, b. scab, c. downy mildew, d. Conidiophore of Pernnospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- lii, f. oospore of P. schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belt cola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma beta; (after T. Johnson) (J.-/, after PriUieux).
RFPJE0WK–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RFPJ9CFY–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AXECCE–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRH15WR–. Bulletin. Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate. Species of Cercospora from Various Hosts, No. 1.. 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.
RFRK2XR5–Banana Black Sigatoka Leaf Symptoms
RMPG4EP7–. Minnesota plant diseases. Plant diseases. 325 Minnesota Plant Diseases. >ft<f ife; «' The leaf blight of celery (Cercospora apii Fr.). The fungus, causing this disease is a loose spored, imperfect fungus. It causes the formation of red- dish to brownish spots on the leaves, which may spread and increase in size until the leaf is seriously injured. The fungus thrives well on plants in dry || situations and is particularly ! effective against young plants. When badly affected the leaf turns yellow and finally brown. Spots may also appear on the stem. The spores arise from upright fungus-
RMT1HH35–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 20. Beet Diseases. a. Crown gall, b. scab c. downy mildew, d. Conidiophore of Peroyiospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- •/• °°?P.O''e 'f - schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belicola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma belce (after T. Johnson) {d.-f. after PriUieux).
RMMCKA7K–. Fig. 64. — Currant leaf spot (septoriose). After Stewart and Eustace. Septoriose Cercosporose The leaf spots (Septoria Ribis Desm.) (Cercospora angulata Wint.) The " currant leaf spot" is a term applied to a peculiar spotting of the leaves of both currants and gooseberries. It is likely to occur wherever these plants are grown. The spot is of rather characteristic appearance, usually circular,
RFPJ9E31–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RFPJ9EWN–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2B0588P–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRH154X–. Bulletin. Agriculture. Fig. 1.—Leaflet of the Wild China Tree Affected with Cylindrosporium Griseum.. Fig. 2.—Buds of Yucca Blighted by Cercospora Floricola.. 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.
RFRK2WHN–Banana Black Sigatoka Leaf Symptoms
RMPG4CHW–. Diseases of truck crops and their control . Vegetables. Fig. 47. Bean Diseases. a. and fc. Rust on leaf and pods, c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, winter spores, e. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (c. d. and /. after Whetzel). g. Cercospora leaf spot, A. Isariopsis griseola leaf 5T»ot * ''r^nj/^-ephor^ ."Mid conidia of Isariopsis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
RMT1GWJX–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 146 Diseases of Economic Plants Fig. 76. — Fig in well-advanced stage of fruit-rot. Original. considerable damage, causing premature falling of leaves. The rust appears as brown spots upon the leaf. Leaf-blight {Cercospora bol- leana (Thtim.) Speg.). — This blight has been noted in the United States, though l)ut slight attention has been given it. It causes injury similar to that of rust. Other diseases of the fig are: a root-knot due to nematodes; a Rhizoctonia leaf-blight; Southern-blight (S
RMMCKWMK–. Fig. 23. LETTL'cii Diseases. a Germinating sclerotium of Silerolinia liherliana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of .S'. Uberliana, c. section through sclerotium of 6. librrHanii. d. germinating ascospore of .S'. liherliana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RFPJ9F88–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AXT543–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCMEM2–Disease of hydrangea due to frozen winter close up
RMRDE0FN–. Diseases of truck crops and their control . Vegetables. ^lUJ-A-k Fig. 34. Cercospora Leaf Spot OF Horse Radish.. 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.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
RFRK2XR6–Banana Black Sigatoka Leaf Symptoms
RMPG4CTP–. Diseases of truck crops and their control . Vegetables. Fig. 20. Beet Diseases. fl. Crown gall, b. scab, c, downy mildew, d. Conidiophore of Peronospora schachtii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- tii,/. oospore of P. schachtii, g. Cercospora leaf spot (after Halsted), ft. conidiophore and conidia of Cercospora beticola (after Duggar), i, Phoma leaf spot (after Pool and McKay), k, pycnidium of Phoma beta (after T. Johnson) {d.-f. after PrilUeux).. Please note that these images are extracted from scanned page images that may have been digit
RMT1GWJP–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 Fig. 76. — Fig in well-advanced stage of fruit-rot. Original. considerable damage, causing premature falling of leaves. The rust appears as brown spots upon the leaf. Leaf-blight {Cercospora bol- leana (Thtim.) Speg.). — This blight has been noted in the United States, though l)ut slight attention has been given it. It causes injury similar to that of rust. Other diseases of the fig are: a root-knot due to nematodes; a Rhizoctonia leaf-blight; Southern-blight (Sderotium rolfsii); Cankers due to M
RMMCKWPK–. Fig. 23. Lettuce Diseases. a. Germinating sclerotium of Sclerolinia lihertiana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of S. liberliana, c. section through sclerotium of .S. lihertiana, d. germinating ascospore of S. lihertiana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RF2B1GFFG–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHCBY–Disease of hydrangea due to frozen winter close up
RMRH15W8–. Bulletin. Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dppt. of Agriculture. Plate II.. OJfclLjrjiiil Species of Cercospora from Various Hosts, No. 2.. 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.
RFRK2XR8–Banana Black Sigatoka Leaf Symptoms
RMPG3YDR–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. FUNGI IMPERFECT! 309 XVII. LEAF SPOT OF BEETS Cercospora Beticola Sacc. Duggar, B. M. Leaf Spot of the Beet. Cornell Agl. Exp. Sta. Built. 163: 352-359- figs. 56-61. 1898. Pammel, L. H. Spot Disease of Beets. Iowa Agl. Exp. Sta. Built. 15: 238- 243. 1891. Habitat relations. The beet leaf spot is widely distributed. Both in Europe and America it is a fungus of common occurrence, and it is believed to be more or less prevalent wherever beets are grown even to a limited extent. The re
RMT1H4Y4–Diseases of truck crops Diseases of truck crops / Ralph E. Smith diseasesoftruckc119smit Year: 1940 I Fig. 15.—Celery blight caused by a species of Septoria on stalks. somewhat similar disease called 'early blight' (caused by Cercospora apii), which is much less important. To prevent blight, celery must be sprayed repeatedly with 5-5-50 bor- deaux mixture (p. 100) beginning in the seedbed. In places where condi- tions are very favorable to the disease, it may be necessary to spray once a week. Spraying in the seedbed and early in the season is especially important to keep blight from get
RMMCKB1T–. Fig. 64. — Currant leaf spot (septoriose). After Stewart and Eustace. Septoriose ] [ (Septoria Rihis Desm.) The leaf spots j Cercosporose J [ (Cercospora angulata Wint.) The " currant leaf spot" is a term applied to a peculiar spotting of the leaves of both currants and gooseberries. It is likely to occur wherever these plants are grown. The spot is of rather characteristic appearance, usually circular,
RF2B19AMN–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCMEMG–Disease of hydrangea due to frozen winter close up
RMRH15TT–. Bulletin. Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate III.. Species of Cercospora from Various Hosts, No. 3.. 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.
RFRK2WX0–Banana Black Sigatoka Leaf Symptoms
RMPG3YD8–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 312 FUNGOUS DISEASES OF PLANTS XVIII. EARLY BLIGHT OF CELERY Cercospora Apii Fr. Atkinson, Geo. F. Note on the Cercospora of Celery Blight. Cornell Agl. Exp. Sta. Built. 48: 314-316. fig. j. 1892. Duggar, B. M. Early Blight of Celery. Cornell Agl. Exp. Sta. Built. 132: 201-206. figs. 48-50. 1S97. Sturgis, W. C. On the Prevention of Leaf-Blight and Leaf-Spot of Celery. Conn. Agl. Exp. Sta. Rept. 21: 167-171. 1897. U. S. Dept. Agl. Rept. (1886): 117-120. Habitat relations. Cercospora
RMT1HK4K–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 214 Diseases of Economic Plants PEANUT Leaf-spot (Cercospora personata (B. & C.) Ell.).—This leaf-spot is circular in outline, indefinitely bordered, black to brown in the center and grading to green on its outer edge. The lower leaves are first affected and suffer most; later the disease spreads to the upper leaves. The leaves Fig. 116. — Peanut leaf-spot. After Wolf. begin to fall soon after they spot, and in many cases the death of the plant results. It is often a pest. The causal fungus wa
RMMCKCAP–. Fig. 135 Cercospora Kopkei From Wakker 6- Went not dry out, which serves to distinguish this affection from eye- spot or ring-spot; from yellow-spot it differs in the narrowness of the margin. Yellow Leaf-Spot. The yellow leaf-spot, which is very generally distributed in Java without being the cause of notable damage, was recognised by Went in Barbados, Trinidad and Demerara. It is caused by Cercospora Kopkei Krug.
RF2B23D3X–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHBPF–Disease of hydrangea due to frozen winter close up
RMRH15RW–. Bulletin. Agriculture. Bui. 226, Bureau of Plant Industry, U. S, Dept. of Agriculture, Plate IV.. Species of Cercospora from Various Hosts, No. 4.. 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.
RFRK2W99–Banana Black Sigatoka Leaf Symptoms
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.
RMMAB4W8–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Cercospora violae Sacc. Konidienträger und Konidien, stark vergr. (Nach Saccardo.) 1875. C. lilacina Bresad. in Hedwigia XXXI, 41 (1892). — Sacc. Syll. XI, 625. — Oudemans in Xed. Kruidk. Arch. 3 ser. II, 314; Cat. rais. Champ. Pays Bas p. 517. Exs. Krieger Fungi sax. 748.
RF2AYWFJH–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHBE8–Disease of hydrangea due to frozen winter close up
RMRGW4PT–. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 2.—Buds of Yucca Blighted by Cercospora Floricola.. Fig. 3.-Inflorescence of Yucca Blighted by Cercospora Floricola.. 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
RFRK2X3R–Banana Black Sigatoka Leaf Symptoms
RMRYT167–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0109rabe Year: 1910 i)laugrau. )üschelig, Cercospora altliaeiua Sacc. Kouidienträger und Konidieu, stark vergr. (Nach Saccardo.) 1870. C. malvarum Sacc. Micheliall, 365 (1881); Fungi ital. Tab. 682; Syll. IV, 440. — Laml). Fl, myc. Suppl. II, 235. — De Wild, et Dur. Prodr. Fl. Belg. II. 345. Blattfl ecken beiderseitig, olivengrün, von den Nerven begrenzt. Rasen punktförmig, ivengrün. Koni- büschelii JSi gesellig, dienträger septiert. wonig gezähnt, olive
RMMCKA4C–. Fig. 93. — Lima bean pods showing Pho- mose. After Halsted. Leaf spot (Cercospora beticola Sacc). — This, one of the several leaf spots upon the beet, is very widespread in the eastern and middle states. Very few fields are entirely free from it. It occurs upon all varieties, but is especially injurious to the sugar beet. The round, brownish, purple-bordered spots turn ashen in the center, and when mature, often become so thin and brittle as to drop out, leaving ragged holes. The sporif-
RF2B23CP9–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCME3R–Disease of hydrangea due to frozen winter close up
RMRGW4RC–. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 1.—Leaflet of the Wild China Tree Affected with Cylindrosporium Griseup. Fig. 2.—Buds of Yucca Blighted by Cercospora Floricola.. 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
RFRK2W7W–Banana Black Sigatoka Leaf Symptoms
RMMCKWFR–. • ..^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. Sometimes this bac- terial infection, caused by Phytonionas carotae, is confined to one side
RF2AY6M43–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHBDA–Disease of hydrangea due to frozen winter close up
RMRG41DW–. California plant diseases. Plant diseases. Fig. 9.—Shot-hole of almond (Cercospora circumscissa).. Fig. 10.—Almond rust (Puccinia pruni),. 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.. Smith, Ralph E. (Ralph Eliot), 1874-1953; Smith, Elizabeth H. (Elizabeth Hight), 1877-1933. Berkeley, Cal. : Agricultural Experiment Station
RMMCKWJ5–. Fig. 47. Bean Diseases. a. and b. Rust on leaf and pods, c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, winter spores, e. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (f. d. and /. after Whetzel), g. Cercospora leaf spot, h. Isariopsis griseola leaf spot, i. conidiophores and conidia of Isariopsis.
RF2ATJ8NY–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHBN3–Disease of hydrangea due to frozen winter close up
RMRDE03X–. Diseases of truck crops and their control . Vegetables. Fig. 70. Celery Diseases. a. Cercospora leaf spot, 6. conidiophores £,::;-; ^'^ii:;,y.r,i (afterDuggar and Baily), c, Rhizoctonia root. 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.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
RMMCKWM9–. ^ ^ ^C .,"• • Fig. 47. Bean Diseases. a. and 6. Rust on leaf and pods. c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, wmter spores f. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (f. d. and/, after Whetzel), g. Cercospora leaf spot, h. Isariopsis ^riseola leat spot, i. conidiophores and conidia of Isariopsis.
RF2B254WW–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFJCHBFX–Disease of hydrangea due to frozen winter close up
RMRGW5B0–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate I. Species of Cercospora from Various Hosts, No. 1,. 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
RMMCKB1P–. Fig. 56. — Currant leaf-spot. After Stewart and Eustace. which bear numerous, minute, black pycnidia. Heavy infection causes defoliation. Both currants and gooseberries are affected. Treatment is as for the following disease. Angular leaf-spot ^^° {Cercospora angulata Wint.). — This term is applied to a pecuHar spotting of the leaves of both currants and gooseberries. It is likely to occur wherever these plants are grown. The spot is of rather characteristic appearance, irregular or angular in outline, generally about 3 mm. in diameter. In the center of the brown or gray, dis-
RF2AT9950–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRGW5AF–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate II. Species of Cercospora from Various Hosts, No. 2.. 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
RMMCKAB0–. Fig, 56. — Currant leaf-spot. After Stewart and Eustace. which bear numerous, minute, black pycnidia. Heavy infection causes defoliation. Both currants and gooseberries are affected. Treatment is as for the following disease. Angular leaf-spot ^^^ {Cercospora angulata Wint.).—This term is applied to a peculiar spotting of the leaves of both currants and gooseberries. It is likely to occur wherever these plants are grown. The spot is of rather characteristic appearance, irregular or angular in outline, generally about 3 mm. in diameter. In the center of the brown or gray, dis-
RF2AX06N1–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRG41EM–. California plant diseases. Plant diseases. 1082 UNIVERSITY OP CALIFORNIA—EXPERIMENT STATION.. Fig. 9.—Shot-hole of almond (Cercospora circumscissa).. 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.. Smith, Ralph E. (Ralph Eliot), 1874-1953; Smith, Elizabeth H. (Elizabeth Hight), 1877-1933. Berkeley, Cal. : Agricultural Experiment Station
RMMCKWMT–. Fig. 20. Beet Diseases. a. Crown gall, b. scab c. downy mildew, d. Conidiophore of Peroyiospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- •/• °°?P.O'"e "f ^- schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belicola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma belce (after T. Johnson) {d.-f. after PriUieux).
RF2B0BEYH–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRGW59G–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate III.. Species of Cercospora from Various Hosts, No. 3.. 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
RMMAAK9P–. Dr. K.W. van Gorkom's Oost-Indische cultures. Opnieuw uitg. onder redactie van H.C. Prinsen Geerligs. [Door J.P. van der Stock et al.] . (.Foto Jensen). Fig. 7 7- Door slijmziekte aangetaste en daarna genezen tabaksplant. Cercospora nicotianae. Spikkel. De afwijking vertoont zich het meest in het vochtige, warme Deli-klimaat op groote, rijpe bladeren, zoodat men het begin van het optreden wel als aanwijzing heeft
RF2AWGJTX–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRDBFW2–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. i6. Beet Diseases. a. Nematode or root knot, b. Crown gall, t. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Scbwarze).. 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.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
RMMCKWPT–. Fig. 20. Beet Diseases. a. Crown gall, b. scab, c. downy mildew, d. Conidiophore of Pernnospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- lii, f. oospore of P. schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belt cola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma beta; (after T. Johnson) (J.-/, after PriUieux).
RF2ATTCYP–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRH159J–. Bulletin. Agriculture. Bui. 226, Bureau of Plir' Ir.Hw-.'-v U S P-p' "' &.r.r..tu Plate XV.. Fig. 1.—Leaf of the Japanese Privet Affected with Leaf-Spot Due to Cercospora Ligustri.. 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.
RMMCKC2P–. Fig. 146.—I, Cercospora melonis, a leaf of cucumber showing early stage ot disease ; 2, sporophores emerging from a stoma, and bearing spores, mag. ; 3, spore, highly mag. it suddenly appeared in the houses of a grower located at some distance from the nearest known infected area. The explanation was as follows. This grower had sent a consign- ment of cucumbers to Covent Garden, and by some mistake his own empty packing-cases or ' flats' were not returned, but instead, those belonging to another grower whose plants were diseased. Spores of the fungus had been conveyed from one district to an
RF2AWA1K0–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRGW4YA–. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 1.—Leaf of the Japanese Privet Affected with Leaf-Spot Due to Cercospora Ligustri.. Fig. 2.—Small Branch of Mesquite, Showing Three Galls of Possible Bacterial Origin.. 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
RMMCKC2K–. Fig. 147.—Cercospora apii. i, celery leaf attacked by the fungus ; 2, fruit of fungus, highly mag. hyaline, almost cylindrical, a little thickened at one end, 3-10 septate, 50-80 X4 /x. Spraying with amraoniacal carbonate of copper solution is most efficient in checking the disease, if applied before the disease has advanced too far. The spores on diseased leaves live through the winter, and are capable of infecting a crop the following season, hence the leaves should be gathered and burned. Some portions of leaves, however, are certain to remain on the ground, and rotation of crops, where p
RF2B1409H–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMRGW4YM–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate XV.. Fig. 1.—Leaf of the Japanese Privet Affected with Leaf-Spot Due to Cercospora Ligustri.. 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
RMMCKCAJ–. Fig. 136 Cercospora Longipes From Memoirs, Dept. Agri., India It is reported to be by far the commonest leaf disease on the thin canes of India, to which it is practically confined. The spots appear on the blade of the immature leaf and continue during maturity. At first they are narrow, oval, about ^ inch in length, and reddish in colour. A browTi centre early becomes evident, and a yellow border is formed, so that the spot is tri- coloured. When fully developed the spots consist of a broad oval deep-brown ring, with a straw-coloured centre, the whole reaching to half an inch in length. The
RF2AYK6G0–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
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