RMBJPXNP–Silver scurf (Helminthosporium solani) infection on a potato tuber
RFR5GR3B–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RMBX3KTP–Brown spot (Cochliobolus miyabeanus) leaf spots on rice leaves
RFTRJYT1–the yellow corn
RMBGFFX5–Brown spot (Cochliobolus miyabeanus) leaf spots on rice leaves
RFTWNNJY–Sick rose plant
RMBBWKCM–Leaf blight (Setosphaeria turcica) necrotic lesions on growing maize crop
RF2BR81TH–Sick rose plant
RMAM20A0–A fungal disease silver scurf Helminthosporium solani on a potato tuber
RF2K2AR87–Selective focus on rice and green leaves. Rice plantation. Rice price in the world market concept. Rice diseases and agricultural pesticide concept. Paddy field. Plant cultivation. Fungal diseases.
RMB7DW5X–Helminthosporium (Helminthosporium solani), fruiting bodies on infected potatoe
RFR5GR2T–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RFR9Y7AW–plant disease on a Palm leaves the naturally occurring,Textures and backgrounds.
RF2HTPCY8–Selective focus on rice and green leaves. Rice plantation. Rice price in the world market concept. Rice diseases and agricultural pesticide concept.
RMT697EA–Photomicrograph of conidia and conidiophores of a Helminthosporium fungus, 1970. Image courtesy of CDC. ()
RM2ANFXD3–Journal of Agricultural Research . Journal of Agricultural Research Washington, D. C. Helminthosporium Disease of Wheat Plate 4
RMPG45H3–. The fungi which cause plant disease . Plant diseases; Fungi. 612 THE FUNGI WHICH CAUSE PLANT DISEASE that exhibited in the Erysiphaceae, though morphologically they may be inseparable.. Fig. 411.—^Helminthosporium gramineum. Conidio- phoies and spores. After King. H. gramineum (Rab.) Erik, on grasses=Peleospora gramineum. See p. 261. H. trichostoma=Pleospora trichostoma. See p. 260. ^ h/"""M Fio. 412.—Helminthospoiium teres. Conidiopboies and spores. After King. H. teres Sacc. Spots oblong, olive, amphigenous; conidiophores fasciculate, often crooked and nodulose, septate, bro
RMMAB4WP–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Helminthosporium tiliae Fries. Konidienträger, stark vergr. (Nach Saccardo.)
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
RFTRJYTE–the yellow corn
RFTRJYW0–the yellow corn
RFTRJYT7–the yellow corn
RMAT4T89–Silver scurf Helmintosporium solani infection evident on potato tuber
RMBBFWRB–Northern corn leaf blight (Setosphaeria turcica) lesions on a maize leaf South Africa
RFR5GR38–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RMACG6TA–Silver scurf Helminthosporium solani on potato tuber skin
RMAFXHG6–Brown spot Helminthosporium oryzae leaf spots on rice leaf
RM2AX42DP–Bulletin . F. fîué?;uer, Jet. HELMINTHOSPORIUM MA CROC A RPUM Grév. Bull, de la Soc. Myc. de France. Tome XIX. Pl. III. duéguen ad. jiat. def. HELMtNTHOSPORIUM MA CROCARPUM Grév.
RMA5FHYK–Silver scurf Helminthosporium solani on red Desiree potato tuber skin
RMPG46C9–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 261 possesses an Alternaria conidial form. Following Diedicke, the forms given below would be recognized. P. bromi Died. Perithecia brown, hairy; asci 189-288 x 34-59 n, saccate, thin- walled; spores 2-seriate, golden-brown, 4-celled, 48-83 x 19-33 n. Conidia (=Helminthosporium bromi) on brownish spots, 108- 150 X 13-20 li, 5 to 7-celled, dark colored. On Bromus. P. gramineum Died. Conidia (=Helminthosporium gramineum); conidiophores short, subflexuose, light-brown; conidia solitary, elongate-cyl
RMMAB4WR–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Helminthosporium trichellum Sacc. Konidienträger, stark vergr. (Nach Saccardo.) Auf Rinde von Magnolia glauca in Carolina in Nordamerika (Ravenel); an Nadelholz im Wienerwald (v. Höhnel).
RMT1HB14–Diseases of wheat, oats, barley, Diseases of wheat, oats, barley, and rye diseasesofwheato48boew Year: 1960 BOEWE: DISEASES OF WHEAT, OATS, BARLEY, AND RYE 81 Fig. 27.—Helminthosporium leaf blotch of oats. Leaf infection by Hel- minthosporium causes dying of narrow, oblong strips of leaf tissue between veins. The dead tissue turns rusty brown. tion of leaf area has ranged from 0.4 to 19 per cent. Data col- lected since 1928 indicate that, as an annual average, 46 per cent of the oat plants grown in the state are infected and that this infection destroys about 5 per cent of the oat leaf ar
RFTRJYTN–the yellow corn
RFR5GR3C–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2AX43C5–Bulletin . Bull, de la Soc. Myc. de France. Tome XIX, Pl. II. F. fîué?;uer, Jet. HELMINTHOSPORIUM MA CROC A RPUM Grév. Bull, de la Soc. Myc. de France. Tome XIX. Pl. III
RMA5FHYX–Silver scurf Helminthosporium solani on red Desiree potato tuber skin
RMAFXGK2–Northern leaf blight (Setosphaeria turcica) lesion on crop sorghum leaf
RMMCKWAB–. Figure 3.—Spores of the fungus Helminthosporium .sativum. These spores infect stems, roots and leaves of wheat and barley. Helminthosporium sativum attacks chiefly the roots, the bases of stems, and the leaves of wheat and barley on which are produced its characteristic spores (Fig. 3). These spores survive the winter in the soil and on stubble and cause new infections the following spring. These are only a few examples of the great variety of devices by means of which the fungi adapt their parasitic existence to our growing crop plants. 10
RMAF70J2–Brown spot, Cocxhliobolus miyabeanus, on rice flagleaf Thailand
RMT0TXM6–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0109rabe Year: 1910 808 Die Art gehin-t als NfbeiilVuehtroim zu der v. Hülinel begründeten Nectriaceeiigattuiig Eresadolella. Die (iattuiigszugehürigkeit zu Deiidryphium ist nicht über jeden Zweifel erliaben, der Pilz liTinnte ebenso gut auch zu Helminthosporium gezogen werden. Ich stelle die Art zu der Untergattung Brachycladiiuu. 1932. Dendryphium penicillatum (Corda). Exs. Sydow Myc. gerni. 74i>. 1944. Coniothecium complanatum (Neos). Auf Birkenäste
RMAFXFYF–Brown spot Cochliobolus miyabeanus leaf spots on rice plant
RFTRJYT5–the yellow corn
RFR5GR39–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2ANG18K–Journal of Agricultural Research . 333 44.^^ 55.5 66.6 CAP^c/ry OP so/L 77.7 Fig. 3.—Graph showing the amounts of Helminthosporium infectionon the subterranean parts of wheat seedlings grown at differentsoil moistures with other factors as uniform as possible, in experi-ments I and 2. Tabular results are given in Table VI. Nov. 3, 1923 Helminthosporium Disease of Wheat 211.
RMME9KEG–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 249. A Helminthosporium cylindricum Corda. Conidienträser, vorgr. — B H. Tiliae Fries. Conidienträger, vergr. — C H. macrocarpum Grev. Couidienträger, vergr. — I) H. densum Sacc. et Roum. Conidienträger. vergr. — E Brachysporium stemphylioidcs (Corda) Sacc. Couidienträger, vergr. — F Napicladium Bnitiaudii Sacc. Conidien- träger, vergr. — 0 Heterosporium gracile (Wallr.) Sacc. Conidienträger, vergr. — H Blodgei
RMT0R8G1–dong bei nong zuo wu dong bei nong zuo wu bing chong hai fang zhi gong zuo shou ce dongbeinongzuowu00zhon Year: 1959 é«ç²±ä¸è¾¹ç·£ä¸ºç´«ç´ è²ï¼é¿ç´¡éå½¢ï¼ä¸¤é¢å¯çç°é» è²çµ¨æ¯æ ·éç¶çã' ç åèèçèä¸-çåç¥èï¼åçå-¢çæ¢ä¸ çï¼ææ¬è²ï¼æ2ã8个éèï¼åçå-¢å-ç´¡éå½¢ï¼ åè²ï¼æ1ã9个éèï¼è¦å¾5)ã å³æ-ååç èµçµ²å¨ç çµç¹ä¸-è¶å¬ï¼ç¬¬äº å¹´å½¢æåçå-¢å-,éé£å³æ-ä¾µæãåç éæ¸ä¸º 28ã30°Cãææ-åç éã é²æ´½æ³-. (1 )ç§éç å¶æ·ºæ ªçæ¯ã (2 )åç éæ¶åºå®è¡è¼ªä½ã (3)æ ½å¹è¼æç çåç§ã é¢5 ç米大æç ç è åçå-¢å-æ¢ååçæ±å- (ä¸ï¼çç±³å°æç ï¼è¡åº¥æç ï¼ Helminthosporium maydis Nish. and Miyake. çç¶åç åæ-¤ç åçäºçç±³å ¨çè²æ,å¹¼èèª1ã2寸åå°±å¼ å§åç
RM2EH6KX9–Brown spot disease (Cochliobolus miyabeanus) necrotic lesions on a rice leaf, Thailand
RM2EM4FXX–Northern corn leaf blight (Septosphaeria turcica) severe fungal disease lesions on maize / corn crop, Thailand
RFTRJYTJ–the yellow corn
RFR5GR30–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2ANG0NK–Journal of Agricultural Research . easethe amount of Helminthosporium infection on the underground parts ofwheat plants. These results are in line with those obtained in the con-trolled soil temperature and soil moisture experiments, as the earlier fieldsowings were submitted to higher temperatures and moistures than the:later sowings. It is of interest to note the results obtained the following spring otfthese same sowings of Early May wheat. On May 13 counts were made itJthe same manner as in theautumn, and while the per- ^^centages of infection had in-creased considerably overthose recorded
RMMCKTCY–. Net Blotch Net blotch, a fungus disease caused by Helminthosporium dictyoides Drechsl., at- tacks only meadow fescue. Early sjmrptoms appear as irregular brownish areas on the leaves (fig. 11). Lesions are marked with a delicate netted pattern, and it is from this characteristic marking that the disease gets its common name. In the later stages of infection leaves wither and die from the tip toward the base. Conidia of the fungus are borne on the lesions or on the withered leaf tips. Conidia are subhyaline to yellow and are typically straight, with three to five septations. Net blotch occurs
RM2EH6KX2–Northern corn leaf blight (Setosphaeria turcica) severe lesions on maize / corn crop, Thailand
RFTRJYRY–the yellow corn
RM2H5RJEJ–Black point, kernel smudge or smudge (Alternaria sp.) symptoms on barley (Hordeum vulgare) seeds
RFR5GR2R–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2ANG11J–Journal of Agricultural Research . 1., just across from St. Louis, Mo. Qln order to get some idea of the influence of temperature on the Helminthosporium disease, two series of sowings of winter wheat were made at intervals during the autumns of 1920 and 1921. Each sowing consisted of a plot the width of an ordinary grain drill (54 inches) sown across the infested land. In 1920 these plots were 2 rods long and in 1921 they were 5 rods long. In 1920Early May and HarvestQueen varieties wereused and in 1921 Turkeyand Harvest Queen wereused. The dates of sow-ing are given in TablesVIII and IX. Owi
RMMCKX27–. Fig. 22.—Helminthosporium leaf spot of oats. Leaf infection by Helmintho- sporium causes dying of narrow, oblong strips of leaf tissue between veins. The dead tissues turn rustv brown. the fungus enters the hull surrounding the kernel and may even penetrate the kernel itself. An attacked kernel turns brown at the basal end. Life History.—The fungus causing Helminthosporium leaf spot overwinters as spores on the outside of the seed and as mycelium within the seed. When infected kernels sprout, the fungus within the seed renews its growth, or the spores on the seed germinate and produce infect
RFR5GR2W–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2ANFXX9–Journal of Agricultural Research . Plate lournal of Agricultural Research Washington, DC- v8 v Helminthosporium Disease of Wheat Plate 2. Journal of Agricultural Research Washington, D. C. •v^ 9°- PLATE a Marquis wheat seedlings, healthy and artificially infected with Helminthosporiumsativum. A.—Healthy plants from 115 disinfected kernels sown in steam-sterilized, imin-oculated soil. B.—Infected plants, same age as A, from 115 disinfected kernels sown in part ofthe same lot of soil inoculated at sowing time with a water suspension of conidia ofH. sativum growTi in pure culture (culture 51a) is
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
RFTRJYRW–the yellow corn
RFR5GR31–helminthosporium or turcicum leaf stains on corn (leaf disease of corn plant)
RM2AN3C71–Danish fungi as represented in the herbarium of ERostrup . rde. Epochnium. 3107. Epochnium monilioides Fries S. M. Ill Syll. W^ LdauYjjj 843 ^ icon., Syn: Monilia fructigena Schum. no 1604 non Fries. On decaying fruit. S. October (Schum.). Dematiaceae—Phaeophragmiae. Clasterosporium. 3108. Clasterosporium scirpicolum (Fuckel) Sacc, Syll. IV ^^^,Ldau IX On dead stems of Scivpus lacii-sfris. S. Lystrup!. 3109. Clasterosporium put- refasciens (Fuckel) Sacc, Syll.IV2^ Ldau IX Syn: Spori-desmium putr. Fuckel, Tricho-derma brassicae Schum. no 1585,Helminthosporium rhizoctonumDybdahl 77 ^ non R
RMMCRENB–. Pig- 53- Occurrence of stern mst (Fuccinia f;raminis) and leaf rust (Puccinia simplex) of barley during I92I. Net blotch caused by Helminthosporium teres Sacc. Helrninthosporium teres was observed in eleven states: Nev/ York, Illinois, Michigan, Wisconsin, I'innesotaj North Dakota, South Dakota, Montana, Colorado, Oregon, and California. Melhus estim;^ted that the net blotch reduced the yield in lov/a by Evans reports that he had seen a dozen fields in South Dakota in which this disease had completely ruined the crop, and he estimates the reduc- tion in yield for the state at 3%- The maximum
RFTRJYT0–the yellow corn
RM2ANFXME–Journal of Agricultural Research . Journal of Agricultural Research Washington, D. C. •v^ 9°- PLATE a Marquis wheat seedlings, healthy and artificially infected with Helminthosporiumsativum. A.—Healthy plants from 115 disinfected kernels sown in steam-sterilized, imin-oculated soil. B.—Infected plants, same age as A, from 115 disinfected kernels sown in part ofthe same lot of soil inoculated at sowing time with a water suspension of conidia ofH. sativum growTi in pure culture (culture 51a) isolated from wheat. PLATE 3 Basal portions of Early May wheat plants infected with Helminthosporium sati
RMMCK9KW–. Fig. 13.—Spot, or late, blotch of barley on the dorsal and ventral sides of barley leaves: A, large form of blotch; B, small form of blotch. (From Bui. 511.) Spot Blotch.—Large, dark-brown spots (fig. 13) appear on the leaves late in the growing season, and sometimes kill the leaves or cause the grain to shrivel. The same fungus, Helminthosporium sativum, attacks wheat. Seed treatment (p. 21) gives partial control. The varieties Velvet, Comfort, Glabron, and Vaughn are reported to be resistant. Stripe.—Long, dark-brown stripes develop on the leaves (fig. 14) and destroy the tissue so that th
RFTRJYTK–the yellow corn
RM2ANFYC8–Journal of Agricultural Research . E. Minn. Agr. Exp. Sta. Bui. 191, 18 p., 5 pi. 13) Stevens, F. L. 1919. foot-rot disease of wheat—historical and bibliographic. in 111. Nat. Hist. Surv. Bui., v. 13, art. 9, p. 259-286, illus. 14) 1920. FOOT-ROT OF WHEAT. In Science, n. s., v. 51, p. 517-518. 15) 1922. THE HELMINTHOSPORIUM FOOT-ROT OF WHEAT, WITH OBSERVATIONS ONTHE MORPHOLOGY OF HELMINTHOSPORIUM AND ON THE OCCURRENCE OF SALTATION IN THE GENUS. In 111. Nat. HiSt. Surv. Bui., V. 14, art.5, p. 77-185, illus. Literature cited, p. 171-178. PLATE I Marquis wheat seedlings, healthy and artificially
RMMCKWD0–. Fig. 27.—Helminthosporium leaf blotch of oats. Leaf infection by Hel- minthosporium causes dying of narrow, oblong strips of leaf tissue between veins. The dead tissue turns rusty brown. tion of leaf area has ranged from 0.4 to 19 per cent. Data col- lected since 1928 indicate that, as an annual average, 46 per cent of the oat plants grown in the state are infected and that this infection destroys about 5 per cent of the oat leaf area. Appearance.—The oblong to elongate, light reddish-brown spots characteristic of Helminthosporium leaf blotch, fig. 27, begin to appear on the seedling leaves
RMMCKC51–. Fig. 132. — Cylindrosporiiirn padi. i, spots caused by fungus on a plum leaf; 2, section through a pustule of conidia of same; 3, conidia of Exosforium tiliae ; 4, conidium of Sporodesmium brassicae; 5, Helminthosporium gram- inum on barley leaf; 6, conidia of same; 7, Aciinotnena rosae on rose leaf; 8, single blotch of same, showing perithecia ; 9, conidia of same; 10, conidiophores of Cercospora i-esedae; 11, single conidium of same. Figs. I, 5, and 7 about nat. size ; remainder highly mag. the grain by forming a blackish-brown, crust-like weft, which involves a portion or sometimes the wh
RFTRJYTG–the yellow corn
RFTRJYTR–the yellow corn
RMRFRWX2–. The Carnation manual. THE CARNATION MANUAL. 177. Fig. 1.—Helminthosporium Echinulatum. Diseased leaf, natural size. Specimen of fungus uiagnified 400 diameters. M. 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.. National Carnation and Picotee Society (Great Britain). Southern Section. London : Cassell
RMMCKCB2–. Fig. 133 Helminthosporium Sacchari From Memoirs, Dept. Agri., India from Java, the fungus being named Cercospora Sacchari Br. d. H. It is now usually admitted to be a Helminthosporium and is probably identical with H. Sacchari Butl. found in India. The affection is known to occur in Cuba, Jamaica, Porto Rico, Barbados and Trinidad. In the last-mentioned island C. B. Williams reports that during the last few years it has been found only on D 109 in certain small areas, and only exception- ally appears before the month of December. In 1919 a severe local epidemic two or three months earlier th
RFTRJYTY–the yellow corn
RMRDHT1T–. Fungi; their nature and uses. Fungi. THE SPOEE AND ITS DISSEMINATION. 129 form of the spores and their size differ materially, as well as the manner in which they are produced on the threads. In many they are very minute and profuse, but larger and less plentiful in the Dematiei than in the Mucedim.es. The »pores of some species of Helminthosporium are large and multiseptate, calling to mind the spores of the Melanconiei. Others are very curious, being stellate in Triposporium, circinate in Helicoma and Helico- coryne, angular in Gonatosporium, and ciliate in Menispora cili- ata. Some are pr
RMMCK5PY–. Fig..-21... Wheat foot rot survc-y., 19^1. (After map by Hurley Fellows). ' •.. c destroyed about one-third of* the "'ay up the plant in numerous fields," P. D. R. 15: 49, 52, f^o, BLIGHT, due to Fusarium sp. (net .Giblperella saubinetii) and Inw temperatures o^icurred in ?,Tiitman County, Washington, FOOT AND ROOT ROTS,' TAT^f 5 per'" cent r/as reported from Colorado. FOOT ROT due to Fusarium spp, ;7as reported frcm.Michigan and Minnesota. In the latter State Fusarium and HeLminthosporium together caused a loss '^f 1 per cent. - ' . WINTER BLIGHT (Sclerotium fulvum) . Montana
RMRG348D–. California plant diseases. Plant diseases. 1102 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. carefully maintained to make this treatment successful, but it is not usually necessary in California. Blade Blight (Helminthosporium gramineum). Figure 30. The leaves turn yellow and are covered with elongated black spots. This is frequently seen in unfavorable seasons when the plants are small and rather stunted. The plants usually overcome the diseased condi- tion when weather conditions are favorable. It is a question whether the primary trouble is not caused by weather conditions more than by th
RMRGWGPK–. Bulletin. Natural history; Natural history. 108 parasite preying upon the Helminthosporium mycelium; but numerous tests convinced me that such was not the case, but that what really occurs is that the old aerial mycelium dissolves (probably by auto-digestion). All stages of this disorganization can be followed under the immersion lens in stained preparations, where the disorganized filament stains with the gen- tian violet but is seen to be amorphous and without protoplasmic content. These phenomena appear to be limited to the aerial mycelium, but were. "â 'h'- ?'J e. j â â â¢â -,&qu
RMRDW23K–. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. Fig. 101. Spores of Yellow Leaf Disease of Barley (Helminthosporium gramineum). a. and e. Spores germinating, d. Conidiophore. 2. Leaf browning of Corn (.Helmin- thospOTum turcicum). Spore and conidiophore to the left. To the right, conidiophore pushing through stoma. Distribution and hosts. On corn, widely distributed in North America. Poisonous properties. All of these fungi may be regarded as injurious, possibly producing stomatit
RMRGWGEA–. Bulletin. Natural history; Natural history. 133 mycelium grows in the middle lamella. Jones (71), working with Bacil- lus carotovorus, reports that the enzyme produced, attacks more strongly the middle lamella, but he noted also a softening and swelling of the inner lamella, but found that the cellulose stains (e. g., chlor-zinc-iodide) "give clear blue reactions with these fully softened walls." Van Hall (63), working with Bacillus omnivoriis on Iris, reports a similar condition. The inner lamellae, swollen by Helminthosporium, no longer react as cellulose under this test. Blackma
RMRDE4YX–. The fungi which cause plant disease . Plant diseases; Fungi. 612 THE FUNGI WHICH CAUSE PLANT DISEASE that exhibited in the Erysiphaceae, though morphologically they may be inseparable.. Fig. 411.—^Helminthosporium gramineum. Conidio- phoies and spores. After King. H. gramineum (Rab.) Erik, on grasses=Peleospora gramineum. See p. 261. H. trichostoma=Pleospora trichostoma. See p. 260. ^ h/"""M Fio. 412.—Helminthospoiium teres. Conidiopboies and spores. After King. H. teres Sacc. Spots oblong, olive, amphigenous; conidiophores fasciculate, often crooked and nodulose, septate, bro
RMRDPFXN–. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. Fig. 852.âPuccinia lychnidearum, nat. size and magnified. Fig. 853.âHelmiiu..osporium pyrorum (x 700 diam.). Fig. 854.âSiberian Crab â Fungus (X 700 diam.). The fruit-trees are subject to the attack of a black fungus, of which we note particularly two.species, one the Helminthosporium tyrorum (fig 853), which attacks sometimes the Louise Bonne pear, and very frequently the Easter Beurr6, causing the fruit to crack and prematurely rot; so that really it is a very importa
RMRFPWG4–. Some diseases of Puerto Rican forage crops. Forage plants Diseases and pests Puerto Rico. -4 B Figure 2.—A, Leaf spot on Bouteloua heterostega (lamilla) caused by an unidenti- fied species of Helminthosporium. X 3.5. B, Spore of the fungus. X 528. Paragiiita At the time of the survey, the disease incidence on Chloris inflata Link (paragiiita) was limited. There were no diseases of outstand- ing prevalence. Bermuda Grass Rust Rust of Cynodon dactylon (L.) Pers. (Bermuda grass, hala que te quedas) is caused by Puccinia cynodontis Lecroix. This disease has been found to some extent at all times
RMREEK5K–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 808 Die Art gehin-t als NfbeiilVuehtroim zu der v. Hülinel begründeten Nectriaceeiigattuiig Eresadolella. Die (iattuiigszugehürigkeit zu Deiidryphium ist nicht über jeden Zweifel erliaben, der Pilz liTinnte ebenso gut auch zu Helminthosporium gezogen werden. Ich stelle die Art zu der Untergattung Brachycladiiuu. 1932. Dendryphium penicillatum (Corda). Exs. Sydow Myc. gerni. 74i>. 1944. Coniothecium complanatum (Neos). Auf Birkenästeii
RMRPY143–. Hawaiian Fungi. Fungi. 152 Bernice P. Bishop Museum—Bulletin On Saccharum officinarum "Johnston believes that this fungus has been reported from Hawaii."— Caum. DEMATIACEAE-DIDYMOSPORAE 146. CLADOSPORIUM Link. Sp. PI. Fungi vol. 6, p. 39, 1824 See under Phyllosticta colacasiophila, pp. 129-132. DEMATIACEAE-PHRAGMOSPHOREAE 147. HELMINTHOSPORIUM Link. Berl. Mag. vol. 3, p. 10, 1809 No. 352. Helminthosporium cibotii Stevens and Weedon n. sp. Spots 3-7 mm. in diameter, irregularly circular, center tan-colored, shrunken, thin, surrounded by a densely black border 1-2 mm. wide, which sha
RMRE38PJ–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 550 3310. Exosporium hysterioides (Corda) Hohnel, Ldau IX ^^ Syn: Hormiscium hyst. Sacc, Syll. IV ^^^ LdauVIIlT Cryptocory- neum fasciculatum Fuckel, Syll. IV'^=, see v. Hohnel 02^"'= On bark and wood of Betula alba. S. Geelskov (O. R.), Sora ^^li 81 (V. Sa- (rauw. On wood of Fagus. S. Tokkekab Hegn (O. R.), Dyrehaven (O. R.), Lyng- by!. Quercus robur. F. Klingstrup. Sorbus aucuparia. J. Dronninglund Storskov!. 3311. Exosporium tiliae (Fries) Link, Syll. IV "^ Ldau IX«'» c. icon., Syn: Helminthosporium tiliae Frie
RMRDDAYR–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 261 possesses an Alternaria conidial form. Following Diedicke, the forms given below would be recognized. P. bromi Died. Perithecia brown, hairy; asci 189-288 x 34-59 n, saccate, thin- walled; spores 2-seriate, golden-brown, 4-celled, 48-83 x 19-33 n. Conidia (=Helminthosporium bromi) on brownish spots, 108- 150 X 13-20 li, 5 to 7-celled, dark colored. On Bromus. P. gramineum Died. Conidia (=Helminthosporium gramineum); conidiophores short, subflexuose, light-brown; conidia solitary, elongate-cyl
RMRH970Y–. Botanisk tidsskrift. Botany; Plants; Plants. - 158 — Herbarieeksemplarer af syge Planter, eller saadanne, som er op- bevarede i Glycerin, har oftest en brunliggul Farve, selv om de i frisk Tilstand var graagrønne. Er Konidierne lige gamle og ud-. Konidier og Konidiebærere af: A. Helminthosporium gramineum. B. H. teres. C. H. Avenae (alle af lige gamle Kulturer, tegnede samtidig, x 200). Øverste Række viser Konidier undersøgte i Vand. Mellemste Række viser Konidier af samme Prøve: A. efter Behandling med Glycerin, B. efter et Par Sekunders Kogning i destilleret Vand, C. efter Behandling med S
RMRH9K9F–. Botanisk tidsskrift. Botany; Plants; Plants. — 143 — Blade, naar man benytter dem med den fornødne Kritik. Ved mine Undersøgelser har jeg anvendt saadanne overalt, hvor det drejede sig om at studere Konidiernes Udvikling, Bygning og Spi- ring; her er en Kontrol af Sammenhængen mellem forskellige Ud- a b. ede Fig. 5. Helminthosporium Avenue. Lige gamle Kulturer, opvoksede ved forskellig Temperatur (a: 30°, b: °2h°, c: 14-23°, cl: 12°, e: 5°) viklings- og Spiringsstadier meget let, hvorfor de nævnte Forhold kan studeres med fuld Sikkerhed; til Undersøgelse over ydre Faktorers Indflydelse har d
RMRHGAY4–. Boletín de la Sociedad Española de Historia Natural. Natural history. 96 BOLETÍN DE LA REAL SOCIEDAD ESPAÑOLA 18. Polythrincium Trifolii Kze.-Sacc, Syll., IV, p. 350.- Lind., Hyph., I, p. 834. En hojas de Trifoliumprocumbens.—E Paular, VIII-917. En hojas de Trifolium arvense. — Cercedilla (Madrid), rec. C. Bolívar, IX-917. En hojas de Trifolium. —Teruel, rec. Gómez Llueca. 19. Clasterosporium carpophilum (Lev.) Aderh.—Lind., Hyh., II, p. 16., etc. En hojas de Amygdalus communis.—Dehesa de la Villa, Ma- drid, rec. prof. L. Crespí. 20. Helminthosporium smilacinum Gz. Frag., sp. nov. ad ínteri
Download Confirmation
Please complete the form below. The information provided will be included in your download confirmation