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Gnomonia Stock Photos and Images
RMEBKHPC–Apiognomonia erythrostoma (Apiognomonia erythrostoma, Gnomonia erythrostoma), demage on leaves of Prunus 'Accolade'
RF2T7RYBY–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMC47F6P–Walnuts and leaves infected with fungal plant pathogen Gnomonia leptostyla, Marssonina juglandis.
RM2ANAJN2–A text-book of mycology and plant pathology . s of the hostis accomplished by the opening of the stroma. The ovoidal, fusiform,slightly curved hyaline spores are discharged with the opening of thestroma. Some species of Glceosporium are connected with other genera,viz., Glomerella (rufomaculans), Gnomonia and Pseiidopeziza the im-perfect stages of which were placed as species under the form genusGlceosporium, which is the important form pathologically speaking.As examples of the form genus Glceosporium, we have G. ampelophagumwhich causes the anthracnose of the grape; G. venetum which is re-sp
RMW1BWPF–Archive image from page 464 of Die krankheiten der pflanzen, ein. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . diekrankheitende02fran Year: 1895 5-ig. 77. SStnteräüJctg ciitcS 51irfc= bttumS mit fien gebliebenen, oerpiljten blättern, meld)e eri= tt)ecien oon Gnomonia erythro- stoma tragen. 5tg. 78. 35 on Gnomonia erythrostoma befallene unb oerfrüppelte tirfd)en. 3n
RMPG4319–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 10 THE PARASITIC FUNGI. others, like Podosphaera castagnei, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fuskladium tremulae just before the infecting hypha pierces the' cell-walls of its host. A similar- phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostoma, and in the germinating aecidiospores of Melampsora Goeppertiana
RMMCKCBW–. Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A.
RF2PMNCA9–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
![Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . ^ig. GO.^Blätter üon Prunus Padus, Don auSfallenben ^^(ecfen burc^löd)ert ©pegietl bei ber Äirfdie, namenttid^ ber Süpirfd^e,fommt nod) eine ge[äf)rUd)e ^ranf^eit ber Stätter üor, biebaburd) d)orafterifiert ift, ha^ bie burc§ itjre 2Birtung t)er==borrenben Blätter nic^t abfallen, fonbern ebenfalls bi§ jumnäd)[ten grül)jal)r am 33aume l)ängen bleiben. @ö ift bieöbie 33lattbräune ber ^irfc^e, t)erurfa(^t burd) einenal§ Gnomonia crythrostoma be,3ieid]nctcn ^^^il(V 3)urdi biefe 172 :^unt.. ^ig. 61. S? Stock Photo](https://c8.alamy.com/comp/2AN5FY1/pflanzenschutz-nach-monaten-geordnet-eine-anleitung-fr-landwirte-grtner-obstbaumzchter-c-ig-gobltter-on-prunus-padus-don-ausfallenben-ecfen-burcldert-pegietl-bei-ber-irfdie-namenttid-ber-spirfdefommt-nod-eine-ge-frude-ranfeit-ber-sttter-or-biebaburd-dorafterifiert-ift-ha-bie-burc-itjre-2birtung-ter==borrenben-bltter-nict-abfallen-fonbern-ebenfalls-bi-jumnd-ten-grljalr-am-33aume-lngen-bleiben-@-ift-biebie-33lattbrune-ber-irfce-terurfat-burd-einenal-gnomonia-crythrostoma-be3ieid-nctcn-ilv-3urdi-biefe-172-unt-ig-61-s-2AN5FY1.jpg "Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . ^ig. GO.^Blätter üon Prunus Padus, Don auSfallenben ^^(ecfen burc^löd)ert ©pegietl bei ber Äirfdie, namenttid^ ber Süpirfd^e,fommt nod) eine ge[äf)rUd)e ^ranf^eit ber Stätter üor, biebaburd) d)orafterifiert ift, ha^ bie burc§ itjre 2Birtung t)er==borrenben Blätter nic^t abfallen, fonbern ebenfalls bi§ jumnäd)[ten grül)jal)r am 33aume l)ängen bleiben. @ö ift bieöbie 33lattbräune ber ^irfc^e, t)erurfa(^t burd) einenal§ Gnomonia crythrostoma be,3ieid]nctcn ^^^il(V 3)urdi biefe 172 :^unt.. ^ig. 61. S? Stock Photo")
RM2AN5FY1–Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . ^ig. GO.^Blätter üon Prunus Padus, Don auSfallenben ^^(ecfen burc^löd)ert ©pegietl bei ber Äirfdie, namenttid^ ber Süpirfd^e,fommt nod) eine ge[äf)rUd)e ^ranf^eit ber Stätter üor, biebaburd) d)orafterifiert ift, ha^ bie burc§ itjre 2Birtung t)er==borrenben Blätter nic^t abfallen, fonbern ebenfalls bi§ jumnäd)[ten grül)jal)r am 33aume l)ängen bleiben. @ö ift bieöbie 33lattbräune ber ^irfc^e, t)erurfa(^t burd) einenal§ Gnomonia crythrostoma be,3ieid]nctcn ^^^il(V 3)urdi biefe 172 :^unt.. ^ig. 61. S?
RMW1BWNW–Archive image from page 464 of Die Krankheiten der Pflanzen; ein. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . diekrankheitend02fran Year: 1895 SStnterjttJctg einc Mirfc- baumö mit fien gebliebenen, üerpiljten blättern, iueld)e eri= tl)ecien oon Gnomonia erytlu-o- stoma tragen. m. 78. i>on Gnonionia erythrostoma befallene unb uerfrüppclte 5tir)d)eu. 1 biefer eiebnug enueift IL -29
RMPG4E78–. Diseases of economic plants . Plant diseases. TBEES AND TIMBER 449 causes a stoppage of the water supply to the more distant portions of the leaf, resulting in dead areas. Dead twigs should be pruned out, and infected material col- lected and burned. Spraying with Bordeaux mixture may be practiced if the expense is warranted. Powdery mildew. See oak. BLACK WALNUT Anthracnose, Gnomoniose {Marsonia juglandis (Lib.) Sacc. of Gnomonia juglandis). — Conspicuous brown spots, 2-4 mm. in diameter, appear upon the leaflets, which soon yellow and fall. Upon the lower sides of the leaf spots are small,
RMME82KA–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . 5tg. 78. 35 on Gnomonia erythrostoma befallene unb oerfrüppelte tirfd)en. 3n
RF2T7RYC3–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMC47F10–Walnut leaves (Juglans Regia) and walnuts with fungal plant pathogen Gnomonia leptostyla, Marssonina juglandis infection.
![Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . gert)iefen,fo foH fortan für bie njiffenfd)aftüc^e 58egeid)nung ber ganzen. &tfl- 128. ©d)nitt burd) bie im ©eirebe bev 2Birt§;iflfi-5e fi^eiibe©d]Iaud)irud)t uüu Gnomonia erythvostoiua.a Spovenfcliläuriic (Asci), b .slinto mtt Cffming. 2trt jene ber Sc^Iauc^frud)t geltenb fein. 3Jad)bem g. 33.9(berf)oIb nad^geniiefen f)at, bafj fid) auf bon lusidadiumbefaltenen 331ättern tüäl)renb ber 33egetationyru[)e 2d}[aud)=früd)te augbilben, bie gur (Gattung Vcnturia ge()ören, unbe§ iljm gelungen i[t, ben 3u Stock Photo](https://c8.alamy.com/comp/2AN4TB1/pflanzenschutz-nach-monaten-geordnet-eine-anleitung-fr-landwirte-grtner-obstbaumzchter-c-gertiefenfo-foh-fortan-fr-bie-njiffenfdaftce-58egeidnung-ber-ganzen-tfl-128-dnitt-burd-bie-im-eirebe-bev-2birtiflfi-5e-fieiibed-iaudirudt-uu-gnomonia-erythvostoiuaa-spovenfcliluriic-asci-b-slinto-mtt-cffming-2trt-jene-ber-sciaucfrudt-geltenb-fein-3jadbem-g-339berfoib-nadgeniiefen-fat-bafj-fid-auf-bon-lusidadiumbefaltenen-331ttern-tlrenb-ber-33egetationyru-e-2d-aud=frdte-augbilben-bie-gur-gattung-vcnturia-geren-unbe-iljm-gelungen-i-t-ben-3u-2AN4TB1.jpg "Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . gert)iefen,fo foH fortan für bie njiffenfd)aftüc^e 58egeid)nung ber ganzen. &tfl- 128. ©d)nitt burd) bie im ©eirebe bev 2Birt§;iflfi-5e fi^eiibe©d]Iaud)irud)t uüu Gnomonia erythvostoiua.a Spovenfcliläuriic (Asci), b .slinto mtt Cffming. 2trt jene ber Sc^Iauc^frud)t geltenb fein. 3Jad)bem g. 33.9(berf)oIb nad^geniiefen f)at, bafj fid) auf bon lusidadiumbefaltenen 331ättern tüäl)renb ber 33egetationyru[)e 2d}[aud)=früd)te augbilben, bie gur (Gattung Vcnturia ge()ören, unbe§ iljm gelungen i[t, ben 3u Stock Photo")
RM2AN4TB1–Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c . gert)iefen,fo foH fortan für bie njiffenfd)aftüc^e 58egeid)nung ber ganzen. &tfl- 128. ©d)nitt burd) bie im ©eirebe bev 2Birt§;iflfi-5e fi^eiibe©d]Iaud)irud)t uüu Gnomonia erythvostoiua.a Spovenfcliläuriic (Asci), b .slinto mtt Cffming. 2trt jene ber Sc^Iauc^frud)t geltenb fein. 3Jad)bem g. 33.9(berf)oIb nad^geniiefen f)at, bafj fid) auf bon lusidadiumbefaltenen 331ättern tüäl)renb ber 33egetationyru[)e 2d}[aud)=früd)te augbilben, bie gur (Gattung Vcnturia ge()ören, unbe§ iljm gelungen i[t, ben 3u
RMW1BWRW–Archive image from page 465 of Die krankheiten der pflanzen, ein. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . diekrankheitende02fran Year: 1895 450 I. 3tbfd)nitt: 5ßarafitifä)e «jßilje ..7 Gnomonia erythrostoma. A ein reifenbeö 5ßerttpectitin in einem nbenuinterteu Äirfd)blatte im rütjling. Sie f)al§förmige 9iJiünbung lagt über bie (SpibermiS ber Slottnntcrfette n I)erüor; u SUittober» feite. 3m Cninbe ber eritf)ectuml)öl)le bie Sporcnfcf)läud)e, 260fad) üergröfeert. B ein porenfcf;Iand) mit ad)t poren, 660fadi uer» grofeert. D
RMPG0RB5–. The fungi which cause plant disease . Plant diseases; Fungi. 498 THE FUNGI WHICH CAUSE PLANT DISEASE Fusicoccum Corda (p. 483) Stroma subepidermal, several-chambered, erumpent, leathery, black; conidia fusoid, straight and usually large. Some forty species, several of which are regarded as conidial forms of Diaporthe and Gnomonia. F. veronense Massal on Sycamore and Oak=Gnomonia veneta. See p. 274. F. viticolum Red. on grape=Cryptosporella viticola. See p. 280. 0?^. Fig. 343.—F. viticolum, compound pycnidium, germinating spores, pa- raphyses. After Reddick. F. amygdali Del. causes a spot dis
RMME83DN–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . SStnterjttJctg einc^ Mirfc^- baumö mit fi^en gebliebenen, üerpiljten blättern, iueld)e ^^^eri= tl)ecien oon Gnomonia erytlu-o- stoma tragen.
RF2PMNCAN–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRMB5HJ–. Annual report, 1954. Forests and forestry Southern States Periodicals; Forests and forestry Research Southern States Periodicals. 300. YEAR Figure 48.—Disease inquiries made to the Division of Forest Disease Research. Sycamore anthracnose. --Leaf blight and defoliation of sycamores were widespread over much of the southern Appalachian area in the spring. Infec- tions by the causal fungus Gnomonia veneta were favored by the wet cool weather, leading to the most epidemic occurrence since 1937. Drought. - -Unseasonably dry weather occurred for the third consec- utive summer in parts of the Sout
RMT1HY25–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 DISEASES OF SUGAR CANE 315 Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A.
RMPG45MR–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 555 Melanconiacese-Hyalodidymse (p. 537) Conidia hyaline, 1-septate, ovoid to fusoid. Key to Gexeba of Melanconiaces-Hyalodidymse Conidia mutic Saprophjrtic, on stems and fruits 1. Septomyza. Biogenous, typically on leaves 2. Marssonia, p. 555. Conidia 3 to 4-ciliate at each end 3. GlGesporiella. Marssonia Fisch Acervuli globose-discoid, pale, conidia ovate to elongate. In part =Gnomonia, Trochila, Pseudopesiza. Some seventy-five species, all leaf parasites, several of eco- nomic importance. M. c
RMME82KD–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . 5-ig. 77. SStnteräüJctg ciitcS 51irfc^= bttumS mit fi^en gebliebenen, oerpiljten blättern, meld)e *^^eri= tt)ecien oon Gnomonia erythro- stoma tragen.
RF2PJ48J5–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDDX0G–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 10 THE PARASITIC FUNGI. others, like Podosphaera castagnei, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fuskladium tremulae just before the infecting hypha pierces the' cell-walls of its host. A similar- phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostoma, and in the germinating aecidiospores of Melampsora Goeppertiana
RMT1HY26–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A. Fig. 128 Melanconium Iliau. Stromata and Conidia From Bull, it, Dept. Pathology, H.S.Pji.
RMPG46AA–. The fungi which cause plant disease . Plant diseases; Fungi. 274 THE FUNGI WHICH CAUSE PLANT DISEASE Fig. 203.—G. tubifor- mis, peiithecia. After Winter. apically thickened and opening by a pore; spore elliptic, 1-celled, hyaline; paraphyses none. This genus of some twenty-five species contains G. tubiformis (Tode) Sacc. which is said to be the ascigerous stage of Lepto- thyrium alneum Sacc. growing on Alder. Two other species, G. fimbriata and G. coiyli are found on hornbeam and hazel respectively. Gnomonia Cesati & de Notaris (p. 264) Perithecia covered, or eriunpent, submembranous, gl
RMMCPECJ–. Fig. 56.- â Gnomonia veneta. 1, a diseased plane leaf, soniowliat reduced ; 2, conidia, highly mag. along the course of the veins on the under surface of the leaf. This disease was considered to be due entirely to Gloeo- sporium tiervisequum (Sacc). Klebahn, however, has recently worked out the life-history of the fungus, and shows that the Gloeosporiian is but a conidial form oi an ascigerous fungus
RF2PFH851–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRGW519–. Bulletin. 1901-13. Agriculture; Agriculture. Fig. 1.—Leaf of Winged Elm Affected with Scab Due to Gnomonia Ulmea. Fig. 2.—Leaf of Red Mulberry, Showing Eye-Spot Due to Cercospora Moricola. Fig. 3.—Leaf of Live Oak, Showing Tar-Spot Due to Rhytisma Erythrosporum. Fig. 4.—Leaflets of Black Locust, Showing the Characteristic Spotting Due to Cylindrosporium Solitarium.. 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 S
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 202 DISEASES OF CULTIVATED PLANTS the leaves are full-grown, under the form of brownish patches which generally follow the course of the larger veins. The leaves fall long before they are dead, owirg to the mycelium of the fungus passing into the leafstalk, and cutting off the supply of food and water. Minute spore-clusters are formed Fig. 56.- â Gnomonia veneta. 1, a diseased plane leaf, soniowliat reduced ; 2, conidia, highly mag. along the course of the veins on the under Stock Photo](https://c8.alamy.com/comp/T1HJBB/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-202-diseases-of-cultivated-plants-the-leaves-are-full-grown-under-the-form-of-brownish-patches-which-generally-follow-the-course-of-the-larger-veins-the-leaves-fall-long-before-they-are-dead-owirg-to-the-mycelium-of-the-fungus-passing-into-the-leafstalk-and-cutting-off-the-supply-of-food-and-water-minute-spore-clusters-are-formed-fig-56-gnomonia-veneta-1-a-diseased-plane-leaf-soniowliat-reduced-2-conidia-highly-mag-along-the-course-of-the-veins-on-the-under-T1HJBB.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 202 DISEASES OF CULTIVATED PLANTS the leaves are full-grown, under the form of brownish patches which generally follow the course of the larger veins. The leaves fall long before they are dead, owirg to the mycelium of the fungus passing into the leafstalk, and cutting off the supply of food and water. Minute spore-clusters are formed Fig. 56.- â Gnomonia veneta. 1, a diseased plane leaf, soniowliat reduced ; 2, conidia, highly mag. along the course of the veins on the under Stock Photo")
RMT1HJBB–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 202 DISEASES OF CULTIVATED PLANTS the leaves are full-grown, under the form of brownish patches which generally follow the course of the larger veins. The leaves fall long before they are dead, owirg to the mycelium of the fungus passing into the leafstalk, and cutting off the supply of food and water. Minute spore-clusters are formed Fig. 56.- â Gnomonia veneta. 1, a diseased plane leaf, soniowliat reduced ; 2, conidia, highly mag. along the course of the veins on the under
RMPG14PD–. Manual of tree diseases . Trees. CHAPTER XVII ELM DISEASES. Fig. 21, — Leaf-spot of elm. 152 The elms (Ulmus) are common forest and orna- mental trees east of the Rocky Moimtains. They are exceptionally free from specific diseases caused by parasites. Wound-rots and slime-flux are common in the crotches of the large limbs. Chaining is often necessary to prevent split- ting at the crotches. Leaf-Spot Caused by Gnomonia idmea (Sace.) Thiim. This is the most com- mon of the leaf-spot dis- eases of elm. In wet seasons, the spots become so abundant that defolia- tion results. The fungus causing t
RMMCTMJB–. Fig. 55.—Gnomonia erythrostoma. i, conceptacles containing spermatia bursting through the epidermis of a leaf; 2, spermatia ; 3, section of perithecium of ascospore stage ; 4, ascus containing spores ; 5, free spores. All mag. from one orchard to another. Frank records an instance in Prussia where the cherry industry was completely wrecked by this disease, but after two years' work in collecting and burn- ing all infected leaves, the epidemic was thoroughly stamped out, and a return to the former productiveness followed. Wild cherries growing in woods and the bird cherry {Friinus avium) are
RF2T7RYCC–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRH15CT–. Bulletin. Agriculture. Fig. 1.—Leaf of Winged Elm Affected with Scab Due to Gnomonia Ulmea. Fig. 2.—Leaf of Red Mulberry, Showing Eye-Spot Due to Cercospora Moricola. Fig. 3.—Leaf of Live Oak, Showing Tar-Spot Due to Rhytisma Erythrosporum. Fig. 4.—Leaflets of Black Locust, Showing the Characteristic Spotting Due to Cylindrosporium Solitarium.. 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
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] GNOMONIA 20I phore, 14-20X1-1-5 /t. Perithecia of ascigerous form with an ostiolum or beak projecting beyond surface of leaf; asci 8-spored; spores liyaline, narrowly ovate, i-septate below the middle, 16-18 X 5-6 /x. Collecting and burning all the hanging leaves during winter is the only practical method of stamping out the disease. This practice, however, should be general in an infected district, otherwise it is of little avail, as the spores are blown Fig. 55.—Gnomonia er Stock Photo](https://c8.alamy.com/comp/T1HJ9W/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-gnomonia-20i-phore-14-20x1-1-5-t-perithecia-of-ascigerous-form-with-an-ostiolum-or-beak-projecting-beyond-surface-of-leaf-asci-8-spored-spores-liyaline-narrowly-ovate-i-septate-below-the-middle-16-18-x-5-6-x-collecting-and-burning-all-the-hanging-leaves-during-winter-is-the-only-practical-method-of-stamping-out-the-disease-this-practice-however-should-be-general-in-an-infected-district-otherwise-it-is-of-little-avail-as-the-spores-are-blown-fig-55gnomonia-er-T1HJ9W.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] GNOMONIA 20I phore, 14-20X1-1-5 /t. Perithecia of ascigerous form with an ostiolum or beak projecting beyond surface of leaf; asci 8-spored; spores liyaline, narrowly ovate, i-septate below the middle, 16-18 X 5-6 /x. Collecting and burning all the hanging leaves during winter is the only practical method of stamping out the disease. This practice, however, should be general in an infected district, otherwise it is of little avail, as the spores are blown Fig. 55.—Gnomonia er Stock Photo")
RMT1HJ9W–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] GNOMONIA 20I phore, 14-20X1-1-5 /t. Perithecia of ascigerous form with an ostiolum or beak projecting beyond surface of leaf; asci 8-spored; spores liyaline, narrowly ovate, i-septate below the middle, 16-18 X 5-6 /x. Collecting and burning all the hanging leaves during winter is the only practical method of stamping out the disease. This practice, however, should be general in an infected district, otherwise it is of little avail, as the spores are blown Fig. 55.—Gnomonia er
RMPG0RB7–. The fungi which cause plant disease . Plant diseases; Fungi. 496 THE FUNGT WHICH CAUSE PLANT DISEASE Asteroma De Candolle (p. 482) Pycnidia very small, globose, erumpent, often on a mass of hyphae; conidia ovate or short cylindric. In part =Gnomonia. See p' 274. About forty species chiefly parasitic. A. padi (D. C.) Grev. on Prunus=Gnomonia padicola. See p. 275. A. geographicum (D. C.) Desm. occurs on various species of Pomaceae; A. punctiforme Berk, on the rose; A. stuhlmanni Hen. on bananas and pineapples in Africa. A. codisei All. is said to be a serious parasite of Codiseum.^^ Vermicular
RMME82KG–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker . Gnomonia erythrostoma. A ein reifenbeö 5ßerttpectitin in einem nbenuinterteu Äirfd)blatte im ^^rütjling. Sie f)al§förmige 9iJiünbung lagt über bie (SpibermiS ber Slottnntcrfette n I)erüor; u SUittober» feite. 3m C^ninbe ber ^eritf)ectuml)öl)le bie Sporcnfcf)läud)e, 260fad) üergröfeert. B ein ©porenfcf;Iand) mit ad)t ©poren, 660fadi uer» grofeert. Dben bie ringförmige 'JDicmbranuerbicfung beö ©poren» fd)Iaud)e§, meldte jur ©jafniation ber ©poren be^i(flid) ift, jur ©eite in ber ©d^eitela
RF2PJ48HP–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDEG8G–. Diseases of economic plants . Plant diseases. TBEES AND TIMBER 449 causes a stoppage of the water supply to the more distant portions of the leaf, resulting in dead areas. Dead twigs should be pruned out, and infected material col- lected and burned. Spraying with Bordeaux mixture may be practiced if the expense is warranted. Powdery mildew. See oak. BLACK WALNUT Anthracnose, Gnomoniose {Marsonia juglandis (Lib.) Sacc. of Gnomonia juglandis). — Conspicuous brown spots, 2-4 mm. in diameter, appear upon the leaflets, which soon yellow and fall. Upon the lower sides of the leaf spots are small,
RMT1HXXG–Diseases of economic plants (1910) Diseases of economic plants diseasesofeconom02stev Year: 1910 TBEES AND TIMBER 449 causes a stoppage of the water supply to the more distant portions of the leaf, resulting in dead areas. Dead twigs should be pruned out, and infected material col- lected and burned. Spraying with Bordeaux mixture may be practiced if the expense is warranted. Powdery mildew. See oak. BLACK WALNUT Anthracnose, Gnomoniose (Marsonia juglandis (Lib.) Sacc. of Gnomonia juglandis). — Conspicuous brown spots, 2-4 mm. in diameter, appear upon the leaflets, which soon yellow and fall
RF2MXD0D3–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDFE2M–. Manual of tree diseases . Trees. CHAPTER XVII ELM DISEASES. Fig. 21, — Leaf-spot of elm. 152 The elms (Ulmus) are common forest and orna- mental trees east of the Rocky Moimtains. They are exceptionally free from specific diseases caused by parasites. Wound-rots and slime-flux are common in the crotches of the large limbs. Chaining is often necessary to prevent split- ting at the crotches. Leaf-Spot Caused by Gnomonia idmea (Sace.) Thiim. This is the most com- mon of the leaf-spot dis- eases of elm. In wet seasons, the spots become so abundant that defolia- tion results. The fungus causing t
RMT1H4M8–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 10 THE PARASITIC FUNGI. Others, like rodoq)ha('ra castcu/7ici, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fusidadinm trcmulae just before the infecting hypha pierces the cell-walls of its host. A similar phenomenon can be observed in Poly stigma ruhrum, in Gnomonia crythrostoma, and in the germinating aecidiospores of Mdamps
RF2PFHNRX–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDDAWB–. The fungi which cause plant disease . Plant diseases; Fungi. 274 THE FUNGI WHICH CAUSE PLANT DISEASE Fig. 203.—G. tubifor- mis, peiithecia. After Winter. apically thickened and opening by a pore; spore elliptic, 1-celled, hyaline; paraphyses none. This genus of some twenty-five species contains G. tubiformis (Tode) Sacc. which is said to be the ascigerous stage of Lepto- thyrium alneum Sacc. growing on Alder. Two other species, G. fimbriata and G. coiyli are found on hornbeam and hazel respectively. Gnomonia Cesati & de Notaris (p. 264) Perithecia covered, or eriunpent, submembranous, gl
RMT1H4XX–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 10 THE rAKASITlC FLNGI. Others, like Podospharra castagnci, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fusicladium tremidae just before the infecting hypha pierces the cell-walls of its host. A similar phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostovui, and in t
RF2PFHNTR–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDE5C6–. The fungi which cause plant disease . Plant diseases; Fungi. 498 THE FUNGI WHICH CAUSE PLANT DISEASE Fusicoccum Corda (p. 483) Stroma subepidermal, several-chambered, erumpent, leathery, black; conidia fusoid, straight and usually large. Some forty species, several of which are regarded as conidial forms of Diaporthe and Gnomonia. F. veronense Massal on Sycamore and Oak=Gnomonia veneta. See p. 274. F. viticolum Red. on grape=Cryptosporella viticola. See p. 280. 0?^. Fig. 343.—F. viticolum, compound pycnidium, germinating spores, pa- raphyses. After Reddick. F. amygdali Del. causes a spot dis
RMT1HWW4–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 Trees and Timber 403 The causal fungus has been reported in America from Kansas, Missouri, New York, and New Jersey. SYCAMORE Blight (Gnomonia veneta (S. & S.) Kleb.. Gloeosporium). — First noted in 1848, this anthracnose is very widely dis- tributed on sycamore and oak from New Jersey to California and Mississippi. In extreme cases it may so weaken the trees as to cause their death. The scorched appearance of the leaves and defoliation render the trees unsightly. Just before they become full-gro
RF2PFH845–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDE564–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 555 Melanconiacese-Hyalodidymse (p. 537) Conidia hyaline, 1-septate, ovoid to fusoid. Key to Gexeba of Melanconiaces-Hyalodidymse Conidia mutic Saprophjrtic, on stems and fruits 1. Septomyza. Biogenous, typically on leaves 2. Marssonia, p. 555. Conidia 3 to 4-ciliate at each end 3. GlGesporiella. Marssonia Fisch Acervuli globose-discoid, pale, conidia ovate to elongate. In part =Gnomonia, Trochila, Pseudopesiza. Some seventy-five species, all leaf parasites, several of eco- nomic importance. M. c
RMT1H6EP–Diseases of forest and shade Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1921 diseasesofforest23mart Year: 1922 EIIi (Ulmus spp.) Anthracnose caused 'by Gnomonia ulmea (Schv/,) Ihum. Vi'f Hampshire Connecticut - more prevalent than during average year. South Carolina Texas - trace, unimportant. Ohio - greatest damage during nidsxanmer 7hen host is in full foliage moisture and temperature favorable to disease during season. Indiana - found over state, moderate amount of damage noticed in a nursery. (HET) Illinois - throughout state, not irr
RF2PMNCB9–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMREERE3–. Comparative morphology of Fungi. Fungi. SPHAERIALES 275. Fig. 183.—Gnomonia veneta. a, Perithecium. Secondary spore forms. Glocosporium nervisequum, b, on living leaves. Sporonema Platani, c, on rotting leaves. Discula platani, d, in bark under the lenticels. (a X 250; b X 260; c X 160; d X 85; after Klebahn, 1905.),. 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.. Gäumann, Ernst Albert, 1893-1963; Dodge, Carroll William,
RF2N00GTE–Walnut anthracnose or walnut black spot - Gnomonia, Ophiognomonia leptostyla, fungal plant pathogen.
RMRDE5CD–. The fungi which cause plant disease . Plant diseases; Fungi. 496 THE FUNGT WHICH CAUSE PLANT DISEASE Asteroma De Candolle (p. 482) Pycnidia very small, globose, erumpent, often on a mass of hyphae; conidia ovate or short cylindric. In part =Gnomonia. See p' 274. About forty species chiefly parasitic. A. padi (D. C.) Grev. on Prunus=Gnomonia padicola. See p. 275. A. geographicum (D. C.) Desm. occurs on various species of Pomaceae; A. punctiforme Berk, on the rose; A. stuhlmanni Hen. on bananas and pineapples in Africa. A. codisei All. is said to be a serious parasite of Codiseum.^^ Vermicular
RMRH9NF2–. Botanische Zeitung. Plants; Plants. Fig. 5 2. Fig. 10. Sclilußbemerkungeu. Unsere Befunde führen somit zu dem allgemeinen Ergebnis, daß, wie Kleb ahn') bereits hervorgehoben und an Gnomonia veneta als Beispiel gezeigt, das Fehlen oder Vor- handensein der Pyknide für die Verwandtschaft der Fungi imperfccti unter sich und für die Einreihung und Stellung der einzelnen Pilzformen im System nicht ausschlaggebend sein kann. Die Pyknide als systematischer Charakter ist vielmehr nur von untergeordneter Be- deutung. Nicht eine einzelne Eigenschaft, so auch nicht die Form und Zellenzahl der Sporen kan
RMRHAY4D–. Botanikai kzlemnyek. Plants; Plants -- Hungary. 9. ábra. Gnoraonia salieina. Hab. Í7i ramis emortuis Salicis albae, prope Sükösd, Hun- gáriáé. Légit F. Greinieh. A 9. kép magyarázata: A. A két term?test átmetszete, 50-szer nagy. B. A fol szerkezete átmetszésben, 5C0-szor nagy. C. Spórák, melyek gyakran két sejtre esnek széjjel. Az egyik spóra csírázik 500-szór nagy. A 10. kép e gomba töml?it mutatja.. 10. ábra. Gnomonia salieina. 30. Az Amerodothis molliiginis (v. H.) Theiss. et Syd. újabb el?fordulása. Greinieh F. ez év májns elején Sükösdön, a sz?l?k közt a Galium verum elhalt, tavalyi szá
RMRCD95Y–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. 202 DISEASES OF CULTIVATED PLANTS the leaves are full-grown, under the form of brownish patches which generally follow the course of the larger veins. The leaves fall long before they are dead, owirg to the mycelium of the fungus passing into the leafstalk, and cutting off the supply of food and water. Minute spore-clusters are formed. Fig. 56.- â Gnomonia veneta. 1, a diseased plane leaf, soniowliat reduced ; 2, conidia, highly mag. along the course of
RMRCD91B–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. DISEASES OF SUGAR CANE 315. Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A.. 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.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India Committee
RMRCDP6J–. Diseases of flowers and other ornamentals. Flowers; Plant diseases. Diseases of Flowers and Other Ornamentals 45 for the disease, which may spread from it to other kinds of plants. The infection is spread by thrips. Affected plants should be promptly de- stroyed. See page 90. OAK Blight and Canker, Anthracnose.—Dead spots and blotches sometimes develop on the young leaves and on the sides of the twigs and form can- kers on the latter if the shoot is not entirely killed. Trees are sometimes defoliated by this disease in humid districts. The fungus Gnomonia ve-. :-. Please note that these imag
RMRCDPAF–. Diseases of economic plants. Plant diseases. TBEES AND TIMBER 449 causes a stoppage of the water supply to the more distant portions of the leaf, resulting in dead areas. Dead twigs should be pruned out, and infected material col- lected and burned. Spraying with Bordeaux mixture may be practiced if the expense is warranted. Powdery mildew. See oak. BLACK WALNUT Anthracnose, Gnomoniose (Marsonia juglandis (Lib.) Sacc. of Gnomonia juglandis). — Conspicuous brown spots, 2-4 mm. in diameter, appear upon the leaflets, which soon yellow and fall. Upon the lower sides of the leaf spots are small,
RMRCDPAM–. Diseases of economic plants. Plant diseases. Trees and Timber 403 The causal fungus has been reported in America from Kansas, Missouri, New York, and New Jersey. SYCAMORE Blight (Gnomonia veneta (S. & S.) Kleb.. Gloeosporium). — First noted in 1848, this anthracnose is very widely dis- tributed on sycamore and oak from New Jersey to California and Mississippi. In extreme cases it may so weaken the trees as to cause their death. The scorched appearance of the leaves and defoliation render the trees unsightly. Just before they become full-grown the leaves give the first indication of the a
RMRCD963–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. GNOMONIA 20I phore, 14-20X1-1-5 /t. Perithecia of ascigerous form with an ostiolum or beak projecting beyond surface of leaf; asci 8-spored; spores liyaline, narrowly ovate, i-septate below the middle, 16-18 X 5-6 /x. Collecting and burning all the hanging leaves during winter is the only practical method of stamping out the disease. This practice, however, should be general in an infected district, otherwise it is of little avail, as the spores are blow
RMRCC386–. 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. Plant diseases; Parasitic plants. 10 THE rAKASITlC FL^NGI. Others, like Podospharra castagnci, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fusicladium tremidae just before the infecting hypha pierces the cell-walls of its host. A similar phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostovui, and in the germinating aecidiospores of
RMRCD6GP–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 10 THE PARASITIC FUNGI. Others, like rodoq)ha('ra castcu/7ici, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fusidadinm trcmulae just before the infecting hypha pierces the cell-walls of its host. A similar phenomenon can be observed in Poly stigma ruhrum, in Gnomonia crythrostoma, and in the germinating aecidiospores of Mdampsora Goejypcrtiana
RMRCC68M–. Diseases of economic plants. Plant diseases. Trees and Timber 403 The causal fungus has been reported in America from Kansas, Missouri, New York, and New Jersey. SYCAMORE Blight (Gnomonia veneta (S. & S.) Kleb., Gloeosporium). — First noted in 1848, this anthracnose is very widely dis- tributed on sycamore and oak from New Jersey to California and Mississippi. In extreme cases it may so weaken the trees as to cause their death. The scorched appearance of the leaves and defoliation render the trees unsightly. Just before they become full-grown the leaves give the first indication of the a
RMRCC6A7–. Diseases of economic plants. Plant diseases. TREES AND TIMBER 449 causes a stoppage of the water supply to the more distant portions of the leaf, resulting in dead areas. Dead twigs should be pruned out, and infected material col- lected and burned. Spraying with Bordeaux mixture may be practiced if the expense is warranted. Powdery mildew. See oak. BLACK WALNUT Anthracnose, Gnomoniose {Marsonia jnglandis (Lib.) Sacc. of Gnomonia leptostyla (Fries) Ces. & d. Not.).—Con- spicuous brown spots, 2-4 mm. in diameter, appear upon the leaflets, which soon yellow and fall. Upon the lower sides o
RMRCD914–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. Fig. 127 Gnomonia Iliau, Vertical Section of Perithecium and Asci From Bull. 11, Dept. Pathology, H.S.P.A.. Fig. 128 Melanconium Iliau. Stromata and Conidia From Bull, it, Dept. Pathology, H.S.Pji.. 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.. Nowell, William, 1880-; West Indies (British). Imperial Dept. of Agriculture. London, West India
![. Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1921. Trees Diseases and pests United States; Plants, Ornamental Diseases and pests United States. EIIi (Ulmus spp.) Anthracnose caused "by Gnomonia ulmea (Schv/,) Ihum. Vi^^'f Hampshire Connecticut - more prevalent than during average year. South Carolina Texas - trace, unimportant. Ohio - greatest damage during nidsxanmer 7hen host is in full foliage moisture and temperature favorable to disease during season. Indiana - found over state, moderate amount of damage noticed in a nursery. (HET Stock Photo](https://c8.alamy.com/comp/RCDP4P/diseases-of-forest-and-shade-trees-ornamental-and-miscellaneous-plants-in-the-united-states-in-1921-trees-diseases-and-pests-united-states-plants-ornamental-diseases-and-pests-united-states-eiii-ulmus-spp-anthracnose-caused-quotby-gnomonia-ulmea-schv-ihum-vif-hampshire-connecticut-more-prevalent-than-during-average-year-south-carolina-texas-trace-unimportant-ohio-greatest-damage-during-nidsxanmer-7hen-host-is-in-full-foliage-moisture-and-temperature-favorable-to-disease-during-season-indiana-found-over-state-moderate-amount-of-damage-noticed-in-a-nursery-het-RCDP4P.jpg ". Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1921. Trees Diseases and pests United States; Plants, Ornamental Diseases and pests United States. EIIi (Ulmus spp.) Anthracnose caused "by Gnomonia ulmea (Schv/,) Ihum. Vi^^'f Hampshire Connecticut - more prevalent than during average year. South Carolina Texas - trace, unimportant. Ohio - greatest damage during nidsxanmer 7hen host is in full foliage moisture and temperature favorable to disease during season. Indiana - found over state, moderate amount of damage noticed in a nursery. (HET Stock Photo")
RMRCDP4P–. Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1921. Trees Diseases and pests United States; Plants, Ornamental Diseases and pests United States. EIIi (Ulmus spp.) Anthracnose caused "by Gnomonia ulmea (Schv/,) Ihum. Vi^^'f Hampshire Connecticut - more prevalent than during average year. South Carolina Texas - trace, unimportant. Ohio - greatest damage during nidsxanmer 7hen host is in full foliage moisture and temperature favorable to disease during season. Indiana - found over state, moderate amount of damage noticed in a nursery. (HET
RMRCJ54B–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. 5-ig. 77. SStnteräüJctg ciitcS 51irfc^= bttumS mit fi^en gebliebenen, oerpiljten blättern, meld)e *^^eri= tt)ecien oon Gnomonia erythro- stoma tragen.. 5tg. 78. 35 on Gnomonia erythrostoma befallene unb oerfrüppelte tirfd)en. 3n. 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.. Frank, Albert Bernhard, 1
RMRCJME7–. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker. Plant diseases. SStnterjttJctg einc^ Mirfc^- baumö mit fi^en gebliebenen, üerpiljten blättern, iueld)e ^^^eri= tl)ecien oon Gnomonia erytlu-o- stoma tragen.. m. 78. i>on Gnonionia erythrostoma befallene unb uerfrüppclte 5tir)d)eu. 1 biefer ^^e^iebnug enueift IL -29. 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..
RMRCJ548–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. 450 I. 3tbfd)nitt: 5ßarafitifä)e «jßilje ..7. Gnomonia erythrostoma. A ein reifenbeö 5ßerttpectitin in einem nbenuinterteu Äirfd)blatte im ^^rütjling. Sie f)al§förmige 9iJiünbung lagt über bie (SpibermiS ber Slottnntcrfette n I)erüor; u SUittober» feite. 3m C^ninbe ber ^eritf)ectuml)öl)le bie Sporcnfcf)läud)e, 260fad) üergröfeert. B ein ©porenfcf;Iand) mit ad)t ©poren, 660fadi uer» grofeert. Dben bie ringförmige 'JDicmbranuerbicfung beö ©poren» fd)Iaud)e§, meldte jur ©jaf
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