RM2C1DA6H–Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May
RMPG0GHK–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. i6. Beet Diseases. a. Nematode or root knot, b. Crown gall, t. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Scbwarze).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
RF2ATJ10F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2XR7–Banana Black Sigatoka Leaf Symptoms
RF2H10YCP–Cercospora beticola leaf white spots on red swiss chard - beetroot.
RF2NH82DH–Close-up leave of hortensia infected by cercospora in garden. Tan spots with reddish bown halos develop on leaves. Need water to keep off moisture. Ap
RF2NH826T–Close-up leave of hortensia infected by cercospora in garden. Tan spots with reddish bown halos develop on leaves. Need water to keep off moisture. Ap
RF2F2CNBM–Ripe papaya With Asperisperium Caricea Disease
RMMCKWMT–. Fig. 20. Beet Diseases. a. Crown gall, b. scab c. downy mildew, d. Conidiophore of Peroyiospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- •/• °°?P.O'"e "f ^- schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belicola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma belce (after T. Johnson) {d.-f. after PriUieux).
RMT1HH35–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 20. Beet Diseases. a. Crown gall, b. scab c. downy mildew, d. Conidiophore of Peroyiospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- •/• °°?P.O''e 'f - schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belicola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma belce (after T. Johnson) {d.-f. after PriUieux).
RMRDBFW2–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. i6. Beet Diseases. a. Nematode or root knot, b. Crown gall, t. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Scbwarze).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
RM2C1DAB1–Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May
RMPG4CGE–. Diseases of truck crops and their control . Vegetables. / â '^'â¢'f.... Fig. 55. Diseases OF the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
RM2C1D9EF–Early leaf spot (Cercospora arachidicola) fungal disease necrotic lesions on a peanut leaflet, North Carolina, USA
RM2C1D9ED–Early leaf spot (Cercospora arachidicola) fungal disease necrotic lesions on a peanut leaflet, North Carolina, USA
RF2APPFPY–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2X4X–Banana Black Sigatoka Leaf Symptoms
RF2H10Y8P–Cercospora beticola leaf white spots on red swiss chard - beetroot.
RF2NH826J–Close-up leave of hortensia infected by cercospora in garden. Tan spots with reddish bown halos develop on leaves. Need water to keep off moisture. Ap
RF2F2CPM6–Fungal Infected Papaya
RMMCKWPT–. Fig. 20. Beet Diseases. a. Crown gall, b. scab, c. downy mildew, d. Conidiophore of Pernnospora schachlii arising from a stomate of an infected beet leaf, e. germinating zoospore of P. schach- lii, f. oospore of P. schachlii, g. Cercospora leaf spot (after Halsted), h. conidiophore and conidia of Cercospora belt cola (after Duggar), i. Phoma leaf spot (after Pool and McKay), k. pycnidium of Phoma beta; (after T. Johnson) (J.-/, after PriUieux).
RMT1J0A4–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 70. Celery Diseases. a. Cercospora leaf spot, h. conidiophores and conidia of Cercospo (afterDuggar and Baily), c. Rhizoctonia root rot.
RFPJ9H0A–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMRDD8JR–. Diseases of truck crops and their control . Vegetables. / â '^'â¢'f.... Fig. 55. Diseases OF the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
RMPG0G4X–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. 74. Violet Diseases. a. Pbyllosticta leaf spot (after Halsted), b. conidiophores and conidia of Marsonia viol<r (after Jones, L. R.), c. speck anthracnose (after Jones and Giddings), d. Cercospora leaf spot (after Halsted).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E.
RMAPF9X1–Early leaf spot (Passalora arachnidicola) leaf spots on peanut leaf
RF2ANTGA6–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMMCKWGE–. Fig. 70. Celery Diseases. a. Cercospora leaf spot, h. conidiophores and conidia of Cercospo (afterDuggar and Baily), c. Rhizoctonia root rot.
RMT1JGW7–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] 4tf mi m [? -' ' Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RFPJ9HA7–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMRDBF8M–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. 74. Violet Diseases. a. Pbyllosticta leaf spot (after Halsted), b. conidiophores and conidia of Marsonia viol<r (after Jones, L. R.), c. speck anthracnose (after Jones and Giddings), d. Cercospora leaf spot (after Halsted).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E.
RFPJDC37–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG4CT7–. Diseases of truck crops and their control . Vegetables. Fig. 23. Lettuce Diseases. a Germinating sclerotium of SderoHnia liberliana the'cause of lettuce drop, 6. section of fruiting cup (aoothecium) showing asci. ascospores and fiaraphyses of S. liberliana. c. section through sclerotium of A. /.â¢;.»w.-^«" J r-^-T-.-.-ating ascospore of 5. «Offnia?ia (.a. ':'. ,. r'-. â - - âvens), e. Cercospora leaf spot.. 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 n
RM2C1D9EK–Early & late leaf spot (Passalora arachnidicola) & (Mycosphaerella berkleyi) lesions on peanut leaf, North Carolina, May
RF2AWC72F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2DRXJNE–Angular leaf spot (Phaeoisariopsis griseola) lesions on green bean (Phaseolus vulgaris) leaf, Thailand
RMMCKWH6–. Fig. 70. Celery Diseases. a. Cercospora leaf spot, b. conidiophores and conidia of Cercospora apii (afterDuggar and Baily), c. Rhizoctonia root rot.
RMT1HJH7–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 23. LETTL'cii Diseases. a Germinating sclerotium of Silerolinia liherliana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of .S'. Uberliana, c. section through sclerotium of 6. librrHanii. d. germinating ascospore of .S'. liherliana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RMRDTD4A–. The Peanut, the unpredictable legume; a symposium. Peanuts; Peanuts. MORPHOLOGY, GENETICS AND BREEDING 65 360 days "rest" period, usually pink, sometimes tan, rose, wine, red or variegated red and white. Moderately resistant to cercospora leaf spot. 2. Spanish (figures 21, 22).—Plants moderately branched, consisting of four or more main lateral branches arising as in Valencia. Main stem and laterals usually of approximately equal lengths. Nodes of the main stem above the principal laterals vegetative and reproductive; nodes of laterals irregularly vegetative and reproductive, usual
RFPJDC8Y–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG4EM2–. Diseases of economic plants . Plant diseases. 242 DISEASES OF ECONOMIC PLANTS ent upon horse-radish, but does not usually become serious. Leaf spot, cercosporose {Cercospora Armoracioe Sacc).— This spot is much like that of ramulariose. LETTUCE Sclerotiniose, drop, wilt (Sclerotinia Libertiana Fckl.).— The disease begins with wilting of the outer lower leaves,. Fig. 110. — Sclerotia of Sclerotinia from lettuce germinating. which droop and fall flat upon the ground; a similar fate rapidly overtakes the inner leaves, and so on over the whole plant, until within a few days the entire plant is d
RF2AR991M–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2DRXJD9–Angular leaf spot (Phaeoisariopsis griseola) lesions on green bean (Phaseolus vulgaris) leaf, Thailand
RF2HXA2H1–A papaya tree is packed with fruits that are covered with white fungal disease of the asperisperium caricae.
RMMCKWK4–. Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RMT1J002–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CERCOSPORA 487 proved by inoculation experiments that when the spores are placed on a young celery leaf, a disease spot becomes evident about the fourth day, and that mature spores are produced in four weeks. The pale olive sporophores originate from colourless mycelium in the tissue of the leaf, and come to the surface of the leaf in clusters through the stomata of the leaf. Spores Fig. 147.—Cercospora apii. i, celery leaf attacked by the fungus ; 2, fruit of fungus, highly
RMRDE0KD–. Diseases of truck crops and their control . Vegetables. Fig. 23. Lettuce Diseases. a Germinating sclerotium of SderoHnia liberliana the'cause of lettuce drop, 6. section of fruiting cup (aoothecium) showing asci. ascospores and fiaraphyses of S. liberliana. c. section through sclerotium of A. /.â¢;.»w.-^«" J r-^-T-.-.-ating ascospore of 5. «Offnia?ia (.a. ':'. ,. r'-. â - - âvens), e. Cercospora leaf spot.. 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 n
RFPJDXRR–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG3YD8–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 312 FUNGOUS DISEASES OF PLANTS XVIII. EARLY BLIGHT OF CELERY Cercospora Apii Fr. Atkinson, Geo. F. Note on the Cercospora of Celery Blight. Cornell Agl. Exp. Sta. Built. 48: 314-316. fig. j. 1892. Duggar, B. M. Early Blight of Celery. Cornell Agl. Exp. Sta. Built. 132: 201-206. figs. 48-50. 1S97. Sturgis, W. C. On the Prevention of Leaf-Blight and Leaf-Spot of Celery. Conn. Agl. Exp. Sta. Rept. 21: 167-171. 1897. U. S. Dept. Agl. Rept. (1886): 117-120. Habitat relations. Cercospora
RF2AT9T7B–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RF2HH9AHT–Sugar beet plants with symptoms of bacterial infection - drying leaves.
RMMCKWHD–. Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RMT1JFB5–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 DISEASES OFlBANANA 251 of these diseases as it is quite probable that they will be met with sooner or later. Black Spot of Leaves. This leaf disease has been reported from several localities in Jamaica, where it is confined to good soils containing a high proportion of marl. It begins with tiny black spots on the main veins of the leaf-blade, which increase in size and become Fig. 96 Cercospora Musarum Bull. 6, Dept. Agri., Jamaica lenticular and are then often surrounded by a n
RM2AJ5EDG–Fungous diseases of plants . ize,color, septation, etc., of sporesand conidiophores, or in themacroscopic appearances ofspots, are generally employedin distinguishing species.Among many other species the following upon important hostsmay be mentioned. Cercospora Viticola Sacc. This fungus produces a spot knownas grape leaf blight. It has not been productive of serious damageexcept during unusually moist seasons. Thespots are first evident on the lower surface ofthe leaf, and it is also upon this surface thatthe conidiophores are developed. Upon Am-pclopsis qninqncfolia a Cercospora is morecomm
RFPJDY39–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG4EX9–. Diseases of economic plants . Plant diseases. 152 DISEASES OF ECONOMIC PLANTS toms to the knot, may be distinguished from it by the absence of wartlike growths upon the surface of affected twigs. As an effective measure all diseased canes may be cut out and burned, cutting well below the diseased area.. FlQ. 64. — Currant leaf spot (septoriose). After Stewart and Eustace. Septoriose 1 [ (Septoria Ribis Desm.) The leaf spots Cercosporose J [ {Cercospora angulata Wint.) The " currant leaf spot" is a term applied to a peculiar spotting of the leaves of both currants and gooseberries.
RF2AW0AJC–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2WX1–Banana Black Sigatoka Leaf Symptoms
RF2HH9AHN–Sugar beet plants with symptoms of bacterial infection - drying leaves.
RMMCK7WX–. Fig. i6. Beet Diseases. a. Nematode or root knot, h. Crown gall, c. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Schwarze).
RMT1HK4K–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 214 Diseases of Economic Plants PEANUT Leaf-spot (Cercospora personata (B. & C.) Ell.).—This leaf-spot is circular in outline, indefinitely bordered, black to brown in the center and grading to green on its outer edge. The lower leaves are first affected and suffer most; later the disease spreads to the upper leaves. The leaves Fig. 116. — Peanut leaf-spot. After Wolf. begin to fall soon after they spot, and in many cases the death of the plant results. It is often a pest. The causal fungus wa
RM2AJ1BK1–Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products . Fig. 48 Fig. 49 eventually becomes black. In Fig. 48 are shown the spores after Kriiger.Their length is from 19-6 to 40 microns, with an average of 25-2 microns,and with a breadth of 7 microns. The disease has been reported from Java,British Guiana, Porto Rico, Santo Domingo, Cuba, Jamaica, Louisiana andIndia. Black Spot of the Leaf Base. ^ Cercospora acerosum (Dickoff and Hein).—Thisdisease causes a blackening of the leaf base. The spores, shown in Fig. 49, TH
RFPJDC14–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG14WF–. Manual of tree diseases . Trees. 102 MANUAL OF TREE DISEASES Leaf-Spot Caused by Cercospora tilim Peck The leaves of the basswood are often affected by this disease. Large brown dead areas are formed at the tip or along the mar- gin of the leaf (Fig. 10). A broad yellowish border surromids. Fig. 10. — Leaf-spot of basswood. the spot. The fruiting bodies of the causal pathogene are in- conspicuous. For the general life history and colitrol of leaf- spot fungi, see page 33.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili
RF2AXW65Y–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2WB9–Banana Black Sigatoka Leaf Symptoms
RMMCKWMK–. Fig. 23. LETTL'cii Diseases. a Germinating sclerotium of Silerolinia liherliana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of .S'. Uberliana, c. section through sclerotium of 6. librrHanii. d. germinating ascospore of .S'. liherliana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RM2AJ1B72–Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products . Fig. 48 Fig. 49 eventually becomes black. In Fig. 48 are shown the spores after Kriiger.Their length is from 19-6 to 40 microns, with an average of 25-2 microns,and with a breadth of 7 microns. The disease has been reported from Java,British Guiana, Porto Rico, Santo Domingo, Cuba, Jamaica, Louisiana andIndia. Black Spot of the Leaf Base. ^ Cercospora acerosum (Dickoff and Hein).—Thisdisease causes a blackening of the leaf base. The spores, shown in Fig. 49, TH
RFPJDY9J–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG3YDR–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. FUNGI IMPERFECT! 309 XVII. LEAF SPOT OF BEETS Cercospora Beticola Sacc. Duggar, B. M. Leaf Spot of the Beet. Cornell Agl. Exp. Sta. Built. 163: 352-359- figs. 56-61. 1898. Pammel, L. H. Spot Disease of Beets. Iowa Agl. Exp. Sta. Built. 15: 238- 243. 1891. Habitat relations. The beet leaf spot is widely distributed. Both in Europe and America it is a fungus of common occurrence, and it is believed to be more or less prevalent wherever beets are grown even to a limited extent. The re
RF2ANDXMT–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2WE8–Banana Black Sigatoka Leaf Symptoms
RMMCKWPK–. Fig. 23. Lettuce Diseases. a. Germinating sclerotium of Sclerolinia lihertiana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of S. liberliana, c. section through sclerotium of .S. lihertiana, d. germinating ascospore of S. lihertiana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RM2CDCCD0–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . ,color, septation, etc., of sporesand conidiophores, or in themacroscopic appearances ofspots, are generally employedin distinguishing species.Among many other species the following upon important hostsmay be mentioned. Cercospora Viticola Sacc. This fungus produces a spot knownas grape leaf blight. It has not been productive of serious damiageexcept during unusually moist seasons. Thespots are first evident on the lower surface ofthe leaf, and it is also upon this surface thatthe conidiophores are devel
RFPJE1BE–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG44R0–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. FUNGI IMPERFECTI (dEUTEROMYCETES) 267 fungus which causes leaf spot of beets, Cercospora beticola. The form genus Fusarium (Fig. 109), established by Link in 1809, is one which has come into prominence recently as associated with the production of serious plant diseases. At least eleven species are found on the sweet potato (Fig. 108), and these have been investigated by H. W. WoUenweber' and other mycologists. He finds that the genus has a number of vegetative and spore stages the vari
RF2AMNANY–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFRK2XR5–Banana Black Sigatoka Leaf Symptoms
RF2AT375F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMMCKCAJ–. Fig. 136 Cercospora Longipes From Memoirs, Dept. Agri., India It is reported to be by far the commonest leaf disease on the thin canes of India, to which it is practically confined. The spots appear on the blade of the immature leaf and continue during maturity. At first they are narrow, oval, about ^ inch in length, and reddish in colour. A browTi centre early becomes evident, and a yellow border is formed, so that the spot is tri- coloured. When fully developed the spots consist of a broad oval deep-brown ring, with a straw-coloured centre, the whole reaching to half an inch in length. The
RMRCCKE1–. Diseases of truck crops and their control. Vegetables. ^ ^ ^C .,"• • Fig. 47. Bean Diseases. a. and 6. Rust on leaf and pods. c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, wmter spores f. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (f. d. and/, after Whetzel), g. Cercospora leaf spot, h. Isariopsis ^riseola leat spot, i. conidiophores and conidia of Isariopsis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabil
RFPJE104–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG4EMD–. Diseases of economic plants . Plant diseases. 226 DISEASES OF ECONOMIC PLANTS CELERY Leaf spot, early blight, cercosporose {Cercospora Apii Ft.). — The leaf spot is common in both Europe and America, constituting probably the most destructive disease to which the celery plant is subject. It is known from. Fig. 106. —• Cauliflower affected with black rot, (Pseudomonose). Original. Colorado to New Jersey. In Florida in 1906 it is said to have injured 80 per cent of the crop. The crop is largely reduced, and the unsightUness of the spots injures the salability of the product. The spots appear f
RFRK2WHN–Banana Black Sigatoka Leaf Symptoms
RF2AXECCE–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RMMCKA7K–. Fig. 64. — Currant leaf spot (septoriose). After Stewart and Eustace. Septoriose Cercosporose The leaf spots (Septoria Ribis Desm.) (Cercospora angulata Wint.) The " currant leaf spot" is a term applied to a peculiar spotting of the leaves of both currants and gooseberries. It is likely to occur wherever these plants are grown. The spot is of rather characteristic appearance, usually circular,
RMRCCKBF–. Diseases of truck crops and their control. Plants -- Diseases. Fig. 47. Bean Diseases. a. and b. Rust on leaf and pods, c. section through bean leaf showing bean rust, summer spores, d. section through bean leaf, showing bean rust, winter spores, e. anthracnose, /. section through bean seed, showing relation of anthracnose to the host (f. d. and /. after Whetzel), g. Cercospora leaf spot, h. Isariopsis griseola leaf spot, i. conidiophores and conidia of Isariopsis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - co
RFPJE0PW–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMPG3P1M–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. FUNGI IMPERFECTI 315 Padi, but it is important as an almond tree diseasel in California and elsewhere. Cercospora Nicotianae E. & E. The more commonly observed leaf spot or frog eye of the tobacco has been reported from many tobacco-growing regions, but does not appear to be a disease of. 6 Fig. 148. Cercospora circumscissa. (After Pierce) a, tuberculate stroma; &, conidiophores and conidia any great importance, and doubtless many different fungi are con- cerned in the prod
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