RM2AKJP3W–Infection experiments with Septoria petroselini varapii causing late blight of celery . Late Blight of Celery onHo. 10 Maules America,n Yellow variety.No. 11 White Plume variety. Plate XVIII.. Late Blight of Celery onITo. 20 00101111313, variety.No. 38 Boston Market variety. Plate XIX.
RMPG44RA–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. FUNGI IMPERFECTI (dEUTEROMYCETEs) 263. Fig. 105.—Septoria leaf spot disease of celery, or celery blight. (After Coons, G. N., and Levin, Ezra, Spec. Bull. 77, Mich. Agric. Coll. Exper. Stat., March. 1916. 5P0BES . 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.. Harshberger, John W. (John William), 1869-1929. Philadel
RMMCKWH8–. IM di Fig. 69. Celery Diseases. a. Septoria leaf spot on leaf, 6. Septoria leaf spot on leaflet, c. Septoria lesions on â jelery seed, d. Septoria spots showing pycnidial bodies, e. cross section showing pyncidium and pycnospores of Septoria pelroselini (a, c, and e after Coons and Levin).
RMT1HF40–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 140 JLLINOIS NATURAL HISTORY SURVEY CIRCULAR 48 visible to the unaided eye, are scattered through the spots and streaks. Spots and streaks in dead leaves are much lighter (often almost white) than the surrounding tissue. Some leaf sheaths become infected with this disease. Life History and Control.—The life history of the Septoria fungus that affects rye is similar to that of the Septoria fungus that causes speckled leaf blotch of wheat, page 25. Controls for the two diseases are simil
RF2HA46DN–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AKJNT3–Infection experiments with Septoria petroselini varapii causing late blight of celery . Late Blight of Celery onITo. 20 00101111313, variety.No. 38 Boston Market variety. Plate XIX.. Late Blit:;ht of Celery onNo. 23 ITenchs Success variety.No. 24 Winter Q,ueen variety. Plate XX.
RMPG3TX1–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. SEPTORIA. 477 cultivated parsley in Europe and Britain, enemy of celery in the United States. S. armoraciae Sacc. On horse-radish in America. S. consimilis Ell. et Mart, frequents lettuce in America. S. lycopersici Speg. This parasite, originally observed in America, has recently been de- scribed by Briosi and Cavara on tomatoes in Italy. It causes spots on leaves, stems, and fruits, inflicting thereby con- siderabl
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,
RMT1JGKY–Diseases of economic plants (1921) Diseases of economic plants diseasesofecon00stev Year: 1921 418 Diseases of Economic Plants CHRYSANTHEMUM Leaf-spot ••'' {Septoria chrysanthemella Cav.). — Large brown to black blotches, often irregularly circular and of indefinite border, appear upon the leaves. These enlarge and coalesce to involve the whole leaf, which withers, dies, and falls away. The lower leaves are first affected, but in later stages all the leaves of the plant may be badly spotted, and practically complete defoliation may result. Cuttings from infected stock should be avoided. All
RF2HA46B1–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AKJRET–Infection experiments with Septoria petroselini varapii causing late blight of celery . Late Blight of Celery onNo, 30 Kalamazoo varietyNo. 7 Golden Self-Blanching variety. (Burpee) Plate XVII.. Late Blight of Celery onHo. 10 Maules America,n Yellow variety.No. 11 White Plume variety. Plate XVIII.
RMPG3NTT–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. 178. Septoria Pyricola : Section of Pycnidium nutrient media, germ tubes being pushed out from either end or from the middle (Fig. 179). This fungus has been readily cultivated upon bean stems and pear twigs, and I have reported the growth as follows: Here the fungus grew slowly at first, producing after sev- eral weeks the pyc- nidia of the Septoria. After several trans- fers this fungus grows quite luxuriantly on bean pods or stems, as seen in fig- ure . . , producing the py
RMMAAH84–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria Arethusa Temig. a. Theil eines Blattes von Citrus mit dem Pilze in natürlicher Grösse. />. BlattdiuTlisclinitt mit einem Fruchtgehäuse, stark vergrössert. c. Sporen, sehr stark ver- grössert. Alles nach Sacc., Fungi ital. del. Tafel 1171.
RMT1HK61–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] Fig. 62.—Mycosp/iaere/la sentina. i, pear leaf attacked b)' fungus, nat. size; 2, conidia of Septoria form ; 3, ascus and free spores of ascigerous form. 2 and 3 highly mag. proved by Klebahn to be the conidial condition of the asci- gerous fungus, Mycosphaerella sentina (Schroter). The injury is undoubtedly caused by the conidial form of the fungus, the ascigerous condition developing only on dead leaves that have been lying on the ground throughout the winter.
RF2HA46C0–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AKJNCY–Infection experiments with Septoria petroselini varapii causing late blight of celery . Late Blit:;ht of Celery onNo. 23 ITenchs Success variety.No. 24 Winter Q,ueen variety. Plate XX.. Late Blight of Celery onNo. 29 Hew Rose variety.ITo. 43 Giant Golden Heart variety. Plate XXI.
RMPG3NWW–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 358 FUNGOUS DISEASES OF PLANTS XLIX. LEAF SPOT OF THE PEAR Septoria Pyricola Desm. Duggar, B. M. Some Important Pear Diseases. Leaf Spot. Cornell Agl. Exp. Sta. Built. 145: 597-611. figs. 157-163. 1898. The leaf spot of pear is a disease which may be readily dis- tinguished from the leaf blight subsequently described. It occurs throughout the eastern United States as an important fungus, both. Fig. 176. Leaf Spot of Pear in orchards and nurseries. It is probably found throughout No
RMMAAH7K–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria anaxea Sacc. a. Blattstück von Senecio praealtus mit dem Pilze in natürlicher Grösse. h. Stark vergrösserter Durchschnitt durch ein Fruchtgehäuse. c. Freie, sehr stark vergrösserte Sporen. Alles nach Saccardo, Fung. ital. del. Tafel 1485.
RMT1HF24–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 139 importance in the state of Illinois probably has been under- estimated. The appearance, life history, and control of the take-all fun- gus on rye are similar to those of the take-all fungus on wheat, page 52. SEPTORIA LEAF BLOTCH Septoria secalis Septoria leaf blotch of rye is very similar in appearance to lesions produced by Septoria on the other cereals and on wild grasses. It has been collected in 11 counties in the southern half o
RF2HA46BD–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AXJWH3–Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . an extendedaccount of grape anthracnose. Since then it has beenfrequently treated of in The Journal of Mycology, andin experiment station bulletins and reports. FUNGI AFFECTING THE CURRANT AND GOOSEBERRY The Leaf=spot Disease Septoria ribis and Cercospora angulata The foliage of currants and gooseberries is oftenattacked early in summer by two or more species offungi, which produce small brownish spots, at first oftenno larger than a pin head, but gradually
RMPFEPNE–. Descriptions of new species of fungi. Fungi. -6—. Figure 4—Leaf of currant showing diseased spots. A CURRANT DISEASE. In Western Massachusetts last summer (1885) the currant bushes were badly injured by a fungus (Septoria ribis, Desm.) growing on the leaves. The same occurs in this region on wild currants and goose- berries, on the cultivated currant in Ohio, and on gooseberries in Ken- tucky. The disease appears as brown spots on the leaves, angular spots limited by the veins and soon becoming dead and drv. The spots are good sized and when large or numerous, destroy nearly the whole leaf.
RMMCKWM2–. Fig. Sweet Potato Diseases. a. Trichoderma rot, b. Septoria leaf spot, c. soil stain d Charcoal rot ^ T Tre'Jfn^o"'?'. V^';.'""'"'' "^.^'^^ ^"' '^ d^^'^' ^^ile the si'de'shoots are lu^e as ttev are supported by the secondary roots formed at the nodes of the vines /,wlJ potato artificially inoculated with Sclerotium Rolfsii. g. net necrosfs. ^'
RMT1HAKK–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 77 . Hg. 2o.—Septoria black stem on oats. The disease attacks the leaves sheaths, joints, stems, and heads. The oval to elliptical dark spots on a leaf blade. A, and the dark blotch at the base of a leaf, .1, and extending into the sheath are produced by the fungus. Infection of the node is shown on the stem at extreme right, .4, and infection of the sheath on the stem to the left of It. Sheath infections, B, are usually lighter brown
RF2HA46BM–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AGBC87–. Annual report of the North Carolina Agricultural Experiment Station. ions.At left, bark thickly beset with spore-bearing pustules. masses. These spores have the characteristic shape, form and septa-tion of Septoria. Most of them were continuous, though very rarelyspores with one, or occasionally two septa were seen. In striking dis-tinction, however, from the usual Septoria, and from the genus asdefined, these spores were dark in color, agreeing thereby with thegenus Hendersonia. The possession of dark spores seems, however,to be permitted to Septoria in the species Septoria pirieola Desm.,w
RMPG46C5–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 265. asci subclavate, fugaceous, 55-70 fi; ascospores allantoic!, 12- 22 X 3-5 yn; conidial stage ( = Gloeosporium rufomaculans) with small sori, developing in more or less concentric circles, usually soon rupturing and pushing out spores in small pinkish masses; spores hyaline to greenish, chiefly oblong, unicellular 10- 28 X 3.5-7 M- The conidial stage of this fungus was first described by Rev. M. J. Berkeley in 1854 as a Septoria. It was later transferred to the form genus Gloeosporium under w
RMMAAH8D–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria pterophila Sacc. <i. Stück eines Flügels von Cicada Orni mit dem Pilze in natürlicher Grösse. h. Zwei schwach vergrösserte Fruchtgehäuse. c. Ein stark vergrössertes Fruchtgehäuse. d. Freie, sehr stark vergrösserte Sporen. Alles nach Saccardo, Fungi ital. dcl. Tafel 90.
RMT1HK62–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] MYCOSPHAERELLA 215 tree should be cut down and burned, as it never becomes free from the disease. Farlow, G., Bull. Bessay Inst., 1875. Halsted, Neiv Jersey Agric. Coll. Expt. Station, Bull. 78. MYCOSPHAERELLA (Johans.) Perithecia as in Sphaerella, asci i6-spored, without para- physes; spores elongated, i-septate, hyaline. Pear leaf spot.—The early defoliation of pear-trees has for long been considered to be due to the presence of a fungus called Septoria piricola (Desm.). This
RF2HA464K–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AN3K65–Danish fungi as represented in the herbarium of ERostrup . astri, piniaustriaca and exiguum are the conidial stages of species of Hysteriineae. There are also accounts of the relations of a number of species tosome quite different forms of fungi imperfecti, viz: Lophium mytilinum corresp. Phragmotrichum Chailletii (see Tul. Carp. II 9).Hypodermella nervisequia — Septoria pini (see Lindau 08^^).Hypodermella sulcigena — Hendersonia acicola (Tub. &. Lager- berg 10^^°).Lophodermium melaleucum — Phoma leptidea (see Vleugel 11 ^*^). Hypodermella. 523. Hypodermella nervisequia (Fries) Lagerberg 10 ^^
RMPG44R7–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. Fig. 105.—Septoria leaf spot disease of celery, or celery blight. (After Coons, G. N., and Levin, Ezra, Spec. Bull. 77, Mich. Agric. Coll. Exper. Stat., March. 1916. 5P0BES . Fig. 106.—Section through leaf spot of celery blight {Septoria) showing hyphae) in leaf tissue and pycnidium with exuding pycnospores. (After Coons, G. H., and Levin, Ezra, Spec. Bull. 77. Mich. Agric. Coll. Exper. Stat., March, 1916.). Please note that these images are extracted from scanned page images that may h
RMMAAH82–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria compta Sacc. a. Stück eines Blättchens von Trifolium alpestre mit dem Pilze in natür- licher Grösse. b. Ein Blattstückchen, etwas vergrössert. c. Zwei Fruchtgehäuse, stark vergrössert. d. Freie, sehr stark vergrösserte Sporen. Alles nach Saccardo, Fung. ital. del. Tafel 89.
RMT1H8FT–Diseases of field crops (1941) Diseases of field crops diseasesoffieldc121smit Year: 1941 64 California Agricultural Extension Service [Gib. 121 black spore pustules of the fungus Septoria tritici. Tin* leaves become blighted, the plants weakened, the grain shriveled, and the yield reduced. The fungus flourishes in cool, moist weather on early-sown wheat. No control method is known. Crop rotation is beneficial. Stem Rust.—This rust appears about the time of heading and attacks both the leaves and the leaf sheaths, which enclose the stem (fig. 31, p. 51). The pustules are long and dark red at
RF2HA46GT–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AXJJ3J–Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . y of liquidto slake them.) Thoroughly dampen a tight woodenbox, and put in a layer of the lime and sprinkle withthe copper solution till it falls into a fine dust. Put inanother layer and sprinkle, and continue till the bushelof lime is reduced to a dry powder. This powder is tobe dusted over the foliage. Sulphide of potassium—oneounce to ten gallons of water—has also been successfullyused. The Carnation Leaf=spot Septoria dianthi This is a widely distribut
RMPG46EM–. The fungi which cause plant disease . Plant diseases; Fungi. 246 THE FUNGI WHICH CAUSE PLANT DISEASE. FiQ. 180.—M. sentina, Septona stage. Portion of a section through a pear leaf spot, showing e, e, epidermis; p, pali- sade cells sp, spongy parenchyma; o, S. piricola pycnidium, giving out spores, b. After Longyear. M. sentina (Fr.) Schr. Perithecia, 80-110 /i; on dead spots of leaves, the long ostiole erumpent; asci clavate, 60-75 x 11-13 fi, colorless; spores fusiform, curved or straight, 26-33 x Conidia (=Septoria piricola) borne in pycnidia which are similar in size and form to the perit
RMMAAH7T–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria Li monu m Pitsscrini. n. Theil eines Blattes von Citrus Limonum mit dem Pilze in natür- licher Grösse. h. Durchschnitt eines Blattes mit zwei Fruciitgeliäusen, stark vergrössert. c. Freie, sehr stark ver- grösserte Sporen. Alles iinch Sac(!., Fungi ital. del. Tafel 1170.
RMT1GP6R–Diseases of truck crops Diseases of truck crops / Ralph E. Smith diseasesoftruckc119smit Year: 1940 Fig. 30.—Rust of pea; the same fungus also attacks broad bean. disease, which is caused by Septoria pisi. It is common in winter or spring peas, especially on the lower leaves, but is not often important enough to require control. Spotted Wilt.—The stems of plants affected by spotted wilt are marked with purplish-brown, elongated, dead streaks and brown spots develop on the leaves, which may die prematurely. This is caused by a virus and is identical with the disease of the same name which af
RF2HA4689–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AJ586Y–Fungous diseases of plants . Fig. 177. Dilution Culture of Septoria Pyricola which is purplish in color (Fig. 176). These color details are lostin very old leaves, but the black papillae indicating the pycnidiathen show up clearly. At maturity the spores may ooze out in darkuniform cirras. In cross section the pycnidium is clearly ovate inform. The wall is made up of several layers of dark cells, and thehyaline conidiophores arise from an inconspicuous inner layer(Fig. 178). The spores are flexuous and quite constantly two-septate, measuring about 60 X 3-4 /i. The mycelium is intercel-lular, b
RMFH9YF1–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMAAH7W–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria Mougeoti Sacc. et Eoum. o. Ein Hieraciumblattstückchen mit dem Pilze in natürlicher Grösse. h. Ein schwach vergrössertes, durchschnittenes Fruchtgehäuse. c. Drei sehr stark vergrösserte, freie Sporen. Alles nach Sacc. et Eoum., Eeliq. Libertianae IV. p. 34. tab. XLIV. fig. 26 in Eev. myc. 1884.
RMT1HDFD–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 114 Diseases of Economic Plants is the first symptom of disease. The entire bush may suc- cumb, but not usually during the first season. Upon splitting the stems a discoloration of the bark and wood near the base is noticed. No effective treatment is known. Mycosphaerella leaf-spot ' (Mycosphcerella grossularice (Fr.) Lind., Septoria). — The spots on the leaf are small (3 mm.), circular, brown-bordered, with blanched centers Fig, 56. — Currant leaf-spot. After Stewart and Eustace. which bear
RF2HA46E4–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AJ58KR–Fungous diseases of plants . Fig. 175. Leaf Blotch of Rose 358 FUNGOUS DISEASES OF PLANTS XLIX. LEAF SPOT OF THE PEAR Septoria Pyricola Desm. DuGGAR, B. M. Some Important Pear Diseases. Leaf Spot. Cornell Agl.Exp. Sta. Built. 145: 597-611. figs. 1^7-16^. 1898. The leaf spot of pear is a disease whicli may be readily dis-tinguished from the leaf blight subsequently described. It occursthroughout the eastern United States as an important fungus, both. Fig. 176. Leaf Siot of Pear in orchards and nurseries. It is probably found throughout NorthAmerica and is reported from various parts of Europe.
RMFH9YE9–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKYHR–. Fig. 62.—Mycosp/iaere/la sentina. i, pear leaf attacked b)' fungus, nat. size; 2, conidia of Septoria form ; 3, ascus and free spores of ascigerous form. 2 and 3 highly mag. proved by Klebahn to be the conidial condition of the asci- gerous fungus, Mycosphaerella sentina (Schroter). The injury is undoubtedly caused by the conidial form of the fungus, the ascigerous condition developing only on dead leaves that have been lying on the ground throughout the winter.
RMT1HDE9–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 ROE WE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 117 Life History and Control.—The life history of the bacterium causing this disease is discussed on page 59. Control for the disease is the same as that suggested on page 57. SEPTORIA LEAF BLOTCH Septoria passerinii Septoria leaf blotch or speckled leaf blotch is not common on cultivated barley and it causes little damage on its host. On this crop plant it has been collected 10 times in Illinois, four times Fig. 42.—Septoria leaf blo
RF2HA4683–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMFH9YDN–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKAXC–. Fig. 95. — Celery leaf infected with Septoria. After Coons. blanched petioles. In extreme cases wilting of the leaves and destruction of the plant follows. After the celery is put in storage the disease may still progress and do great damage, rotting off the leaves and forcing early marketing. Late- blight is often found in the seed bed, and is probably carried by the seed, since the pycnidia are abundant upon the seed- ing stalks and fruit. Seeds should be disinfected and the seed bed rotated. If the disease has been troublesome in preceding years, the
RMT1HYPT–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 SEPTORIA. 477 cultivated parsley in Europe and Britain enemy of celery in the United States. S. armoraciae Sacc. On horse-radish in America. S. consimilis Ell. et Mart, frequents lettuce in America. S. lycopersici Speg. This parasite, originally observed in America, has recently been de- scribed by Briosi and Cavara on tomatoes in Italy. It causes spots on leaves, stems, and fruits, inflicting thereby
RF2HA46EN–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RM2AKREBR–Annual report of the North Carolina Agricultural Experiment Station . Grown on pure agar. M=31.675± 0.242<*= 5.879 + 0.171C. V.=18.560 +0.559^=279 Fig. 31.—Septoria Lycopersici Speg. Polygon ofspores on pure agar. VARIATION OF FUNGI DUE TO ENVIRONMENT. Although the number of spores measured in the two last instances is not large,the fact of a tendency to larger spores on the poorer medium, apple agar, is evident.The spores measured 33.6-133.2 p, mostly 81.4 p, those on pure agar 48.1-181.3 /•,mostly 133.2 fi. ASCOSPORES OF SCLEROTINIA LlBERTIANA FuCKEL. Spores were discharged spontaneously
RF2JCAGWP–Stripe Rust on Wheat Leaf (Puccinia striiformis)
RMFH9YEW–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMAAH8C–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria caricinella Sacc. et Rouiu. a. Ein Blattstückchen von Carex depau- perata mit dem Pilze in natürl. Grösse. h. Zwei schwach vergrösserte, durch- schnittene Fruchtgehäuse. c. Drei sehr stark vergrösserte, freie Sporen. Alles nach Sacc. et Roum., Reliq. Liber- tianae IV. p. 34, tab. XLIV. fig. 27 in Eev. mvc. 1884.
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
RM2AN370A–Danish fungi as represented in the herbarium of ERostrup . Fig. 44; Pleospora lycopodii spec, nov., asc. ix sp. -p. — Fig. 45-46: Phomatospora are-naria S. B. R., asc. &. sp. ^, hab.-f. - Fig. 47-48: Diatrypella abietis spec, nov., asc. 6.sp. -j-i, section of the stroma-y. — Fig. 49-50: Stigmatea pirolae (Fries), hab.-j-, asc. 6. sp.^. — Fig. 51: Leaf of Ribes rubrum with Septoria ribis Desm.-j-. — Fig. 52: Dead leafof Ribes rubrum with Mycosphaerella ribis Fuckel,— — Fig. 53: Septoria ribis Desm.,sp. •^. — Fig. 54: Leptosphaeria corvina (Rostrup), hab.-j-. — Fig. 55—56: Doassansiahottoniae (R
RMFH9YE1–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKC49–. Fig. 138.—Rntomosporiiim maculatum. i, quince leaf diseased ; 2, spores of fungus, highly mag. Spraying with Bordeaux mixture checks the spread of the disease. The dead, diseased leaves should be burned or buried, the diseased shoots should also be cut off. Duggar has the following remarks on this fungus. In the nursery the principal damage is done to seedling pears, and further injury is usually to be attributed to the leaf-spot, Septoria piricola. As previously mentioned, the budded stock is much less frequently affected by the leaf blight, Entomosporium juaculatum. Seedling pears througho
RMT1H8K3–Diseases of field crops in Diseases of field crops in the Prairie Provinces disoffieldcrop Year: 1957 (1) Common leaf spot of alfalfa caused by Pseudopeziza medicaginis. (2) Northern anthrac- nose on red clover caused by Kabatiella caulivora. (3) Bacterial wilt of alfalfa caused by Corynebacterium insidiosum, (4) Downy mildew of sunflowers caused by Plasmopara halstcilii. (5) Bacterial black chaff of wheat caused by Xanthomonas translucent. (6) Net blotch of barley caused by Helminthosporium teres. (7) Speckled leaf disease of wheat caused by Septoria avenae f. sp. triticea. At a later stage
RMFH9YF7–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKA6C–. Fig. 95. — Celery leaf infected with Septoria. After Coons. blanched petioles. In extreme cases wilting of the leaves and destruction of the plant follows. After the celery is put in storage the disease may still progress and do great damage, rotting off the leaves and forcing early marketing. Late- blight is often found in the seed bed, and is probably carried by the seed, since the pycnidia are abundant upon the seed- ing stalks and fruit. Seeds should be disinfected and the seed bed rotated. If the disease has been troublesome in preceding years, the
RMT1H8N7–Diseases of cereal and forage Diseases of cereal and forage crops in the United States in 1921 diseasesofcereal21stak Year: 1922 200 'MEkT - Septoria leaf spot of Knoxville, I.lurfreesboro, Columbia, Nashville, Jackson, and Union City.) Leaf spot had been found early in April very common in most of the fields from Columbia to Union City. In several fields near Nashville the leaf spot was present to the extent of about 10 of the plants. Hovever, in many fields only traces of it could be found. The damage caused was probably slight. (Sherbakoff). Nebraska: Common in fall of 120, uncommon in sp
RMFH9YED–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKWEX–. Fig. 30.—Rust of pea; the same fungus also attacks broad bean. disease, which is caused by Septoria pisi. It is common in winter or spring peas, especially on the lower leaves, but is not often important enough to require control. Spotted Wilt.—The stems of plants affected by spotted wilt are marked with purplish-brown, elongated, dead streaks and brown spots develop on the leaves, which may die prematurely. This is caused by a virus and is identical with the disease of the same name which affects tomatoes, lettuce, and many other plants. So far as is known at present, spotted wilt is not of
RMT0CW43–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0107rabe Year: 1903 Polystigmina 315 Prunus l'rti uns 3737. P. rubra (Desm.) Sacc, Sylt. III. ,,. 622. Syn. Septoria rubra Desm., 10. Not. p. 8. Libertella rubra (Desm.) Bonorden sec. Saccardo. Exs. Krieger, Fungi saxonici No. 529, Auf der Blattunterseite; Stroma fast kreisrund, fleischig, ziemlich flach oder convex, roth, endlich rötblich braun; Fruchtgehäuse sehr Mein, zahlreich, dunkler, eingesenkt, mit punktförmiger Hfünduiur
RM2AKRENR–Annual report of the North Carolina Agricultural Experiment Station . Fig. 30.—Septoria Lycopersici Speg. Poly-gon of spores on apple agar.. Grown on pure agar. M=31.675± 0.242<*= 5.879 + 0.171C. V.=18.560 +0.559^=279 Fig. 31.—Septoria Lycopersici Speg. Polygon ofspores on pure agar. VARIATION OF FUNGI DUE TO ENVIRONMENT. Although the number of spores measured in the two last instances is not large,the fact of a tendency to larger spores on the poorer medium, apple agar, is evident.The spores measured 33.6-133.2 p, mostly 81.4 p, those on pure agar 48.1-181.3 /•,mostly 133.2 fi. ASCOSPORES
RMFH9YDT–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKWD6–. .^^ Hg. 2o.—Septoria black stem on oats. The disease attacks the leaves sheaths, joints, stems, and heads. The oval to elliptical dark spots on a leaf blade. A, and the dark blotch at the base of a leaf, .1, and extending into the sheath are produced by the fungus. Infection of the node is shown on the stem at extreme right, .4, and infection of the sheath on the stem to the left of It. Sheath infections, B, are usually lighter brown than infections on leaves. The black stem phase of the disease is shown by the stem at right B Infection on glumes and hulls appears as dark discolorations, C.
RMT1HA02–Diseases of cereal and forage Diseases of cereal and forage crops in the United States in 1921 diseasesofcereal21stak Year: 1922 OATS - Smuts 215 Powdery rrdldev/ caused by Erysiphe graminis DC. - reported to te very prevalent in Nev; York where, on account of the early warm spring, the damage reached 1., according to Kirby; cird was reported once in Oregon, in a moist draw in a field at I'oro. Leaf spoi. cdused by Septoria passerinii Sacc . This has been reported from V.'isconsin. (V.'eber, George F. Studies on Septoria diseases of cereals and certain grasses. (Abstract). Phytopath. 12: 44.
RMFH9YFE–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKW9G–. (1) Common leaf spot of alfalfa caused by Pseudopeziza medicaginis. (2) Northern anthrac- nose on red clover caused by Kabatiella caulivora. (3) Bacterial wilt of alfalfa caused by Corynebacterium insidiosum, (4) Downy mildew of sunflowers caused by Plasmopara halstcilii. (5) Bacterial black chaff of wheat caused by Xanthomonas translucent. (6) Net blotch of barley caused by Helminthosporium teres. (7) Speckled leaf disease of wheat caused by Septoria avenae f. sp. triticea. At a later stage the diseased areas become speckled with the small black fruiting bodies. (8) Speckled leaf blotch of
RMT1HYTG–Diseases of plants induced by Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith diseasesofplants00tubeuoft Year: 1897 SEPTORIA. 477 cultivated jjarslev in Europe ami enemy of tflt-iv in tlie United St; S. armoraciae Sacc. On horse-radish in America. S. consimilis Ell. et Mart, frequents lettuce in America. S. lycopersici Speg. This para.site, originally observed in America, has recently been de- scribed by Briosi and Cavara on tomatoes in Italy. It causes spots on leaves, stems
RM2CEW009–. Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. bacco stems on the floor of the house. Threefungous diseases have recently become annoying ; viz.,rust (Uromyces caryophyllituis, Schr.), anthracnose( Vohitella sp.), and spot or blight (Septoria Diantlii,Desm). The best treatment is to destroy diseased plantsand to spray the rest with Bordeaux mixture. Varieties are con
RMFH9YF5–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCKWFH–. 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 getting started. In spraying celery, the matter of spray residue must be kept in mind, for there is
RMT0X28P–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr16rabe Year: 1901 Fhleospora 937 Ulmus Septoria Ulmi Fries, Nov. Flor. Suec. V. p. 78 (1819). Stilbospora Uredo DC. (1815.). Exs. Fuckel, -Fung. rhenan. No. 506. Krieger, Fungi saxonici No. 648. Eabenhorst, Fung. europ. No. 970. Tbümen, Mycotheca univers. No. 393. Flecken braun; Fruchtgehäuse dünn, zerstreut, auf der Blatt- unterseite; Sporen cylindrisch-würstchenförmig, beidendig abgerundet, anfänglich mit Oeltropfen, dann mit vier Querwänden, 55 u lang,
RM2CE599W–. The Gardeners' Chronicle and Agricultural Gazette . in the Gardeners^ Chronicle, 1854, p. 676, andthe subjoined figure compared with the one there givenwould at first seem to indicate an identity. But thespores were more inclined to be curved, rather longer,and not so variable in size, and the want of a peri-theclum separated the two widely from each other.The Grape fungus, according to received principles,was a Septoria, while this is a Glseosporium, At thesame time these organisms are so different in differentconditions, that I would not affirm that the two produc-tions are essentially dif
RMFH9YFF–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMAAH78–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Septoria pterophila Sacc. o. Stück eines Flügels von Cicada Orni mit dem Pilze in natürlicher Grösse. b. Zwei schwach vergrösserte Fruchtgehäuse. c. Ein stark vergrössertes Fruchtgehäuse. d. Freie, sehr stark vergrösserte Sporen. Alles nach Saccardo, Fungi ital. del. Tafel 90. bei denselben nicht eingeschnürt, erst hyalin, dann gelbgrünlich- olivenfarbig. An faulenden Flügeln von Cicada Orni bei Conegliano in Norditalien. Aiiliaiig. Unsichere, zweifelhafte oder auszu schliessende Arten. Alnns 2566. S. alnieo
RMT1H39J–Diseases of plants in the Diseases of plants in the United States in 1930 diseasesofplants81barr Year: 1931 A2 in lg'O from average yield per cere I515-I520. Losses from disease were generally mucji less than norm? 1 in 193r'» Outstanding examples are stem rust, leaf rust, and scab of smell grr.ins, potato late blight except in Florida, Septoria blight of tomatoes, apple sceb in the drought area, and peach brown rot. others Trill be noted in the summary. Certain diseases, however, showed increased destructiveness. These include, naturally, pot-to tipburn rnd blossom-end rot of tomato, and
RM2CDCBNN–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . olor are shown in an affected spot: at the center it isashen gray, and within this area appear on either surface the minutepycnidia; the next outer zone, or area, is brown, or black in veryyoung leaves; and surrounding this second there may be an area ^^- J5/-* ^ , -.^. Fig. 177. Dilution Culture of Septoria Pyricola which is purplish in color (Fig. 176). These color details are lostin very old leaves, but the black papillae indicating the pycnidiathen show up clearly. At maturity the spores may ooze 9
RMF1FHK8–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMAAH6X–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Yon der Gattung Septoria unterscheidet sich diese Gattung wie die Gattung Phoma von der Gattung Phyllosticta und wie die Gattung Diplodina von der Gattung Ascochyta. Die Gattungen Phyllosticta, Ascochyta und Septoria sind stets blattbewohnend und meist fleckenbildend, während Phoma, Diplodina und Ehabdospora nie ausschliesslich blattbewohnend und nur höchst selten flecken- bildend sind. Es mussten also mehrere Arten, welche bisher bei Septoria aufgeführt wurden, zu Ehabdospora gebracht werden, weil sie Aeste
RMT0W8E4–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr16rabe Year: 1901 Septoria 715 Septoria oxysiiora Penz. et Sacc. «. Theil eines Blattes von Arundo Donax mit dem Pilze in natürlicher Grosse. h. Durclischnitt eines schwach vcr- grösserten Fruchtgehäuses. c. Freie, sehr stark vergrösserte Si)oren. Alles nach Saccardo, Fung. ital. dcl. Tafel 1487. Septoria caricinella Sacc. et Rouiu. a. Ein Blattstückchen von Carex depau- perata mit dem Pilze in natürl. Grösse. h. Zwei schwach vergrösserte, durch- schni
RM2CDC81E–. The Florists' exchange : a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general . Notes on Vegetable Crops; 3^* cl?^ tINDER CLASS ANDIN THE OPEN ? K r. STODDARD, VvTiaM Su(*.Collel*. Control of Tomato Diseases in theGreenhouse The most important diseases of Toma-toes under glass are mildew, Phytopli-thora infestaus, leaf mold, Cladosporiumfulcrum; and leaf spot, Septoria Ly-copersici. Mildew is well known to greenhousemen. On Tomatoes it appears first at theedges or tips of the leaves as dark water-soaked areas during damp, cloudyweather. These spots have
RMF1FHJY–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMAAH7F–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . An faulenden Beeren von Convallaria majalis in den Ardennen. Cotivolvuins {Calystegia) 2206. S. CoiiYolvuli Desm. in Ann. sc. nat. 1842, XML p. 108. Sacc, Syll. III. p. 536. Syn. Septoria fuscella Berk. in Curr., Simpl, Sphaer. No. 396. Exs. P. Sydow, Mycoth. march. No. 4538. Flecken kreisförmig, dann zusammenfliessend und unregelmässig, roth oder braun-russfarbig, endlich im Centrum weisslich; Frucht- gehäuse eingewachsen, klein, auf der Blattoberseite, bräunlich, am Scheitel durchbohrt; Sporen nadeiförmig,
RMT0W8M7–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr16rabe Year: 1901 Septona 717 Septoria carpophila Sacc. et Eoum. «. Eine Beere von Convallaria majalis mit dem Pilze in natürlicher Grösse. h. Ein schwach vergrössertes, durchschnittenes Fruchtgehäuse. c. Sehr stark vergrösserte Sporenträger mit Sporen. d. Eine sehr stark vergrösserte, freie Spore. Alles nach Sacc. et Eoum., Eeliq. Libertianae IV. p. 34. tab. XLIV. fig. 28 in Eev. myc. 1884. Septoria Mougeoti Sacc. et Eoum. o. Ein Hieraciumblattstückch
RM2CDCBH6–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . red borders, on the leavesof various species of Rubus,both blackberries and rasp-berries.2 The fungus has beenreported from many sectionsof the world, and is doubtless very generally distributed. Pyc-nidia are developed in the center of the larger spots, and thesegive rise to long tapering spores, 40-50/x, ordinarily twice ormore septate by rather indistinct divisions. Septoria consimilis E. & M. The lettuce leaf spot, caused bythis fungus, is prevalent on garden lettuce, particularly during thelatter pa
RMF1FHK0–Infection experiments with Septoria petroselini var. apii causing late blight of celery (1915)
RMMCR7TY–. (B. 649.) Fig.40. Conidienfrucht von Septoria Atriplkis FUCKEL. A Durchschnitt durch dieselbe und den durch den Pilz verursachten Blattflecken von Atriplex latifoUa. Die Innenwand der Conidienfrucht ist mit dem Hymenium austapezirt, das kleine Conidien in ver- schiedenen Stadien der Entwickelung trägt, die auf winzigen Trägern entstehen; o die Stelle, wo die reife Conidienfrucht sich öffnet; e Epidermis, rings um die Conidienfrucht coUabirte Zellen des Assimi- lationsparenchyms. B Einzelne reife Conidien, durch Querwände getheilt. 300 fach vergrössert; aus Frank's Handbuch. Das Hymenium tape
RMT0TR04–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0107rabe Year: 1903 Marssonia 599 Daphne Daphne 4388. M. Daplmes (Desmaz. et Rob.) Sacc, Fungi ital. tab. 1063; Mich. IL p. 541; Syll. III. p. 769. Syn. Gloeosporiura Daphnes Oudem., Mat. Myc. Neerl. II. p. 28, tab. X. fig. 14. Septoria Daphnes Desm. et Kob., X. Not. p. 22. Auf beiden Blattseiten; Flecken grünlich, unregelniässig, später bräunlich; Sporenlager klein, zerstreut oder herdenweise, blass, Marssonia Daphnes (Desm.) Sacc. a. Ein Blatt von Daphn
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