Results 111 to 120 of about 276 (146)
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Survival of Detached Sporangia ofPeronospora destructorandPeronospora tabacina
Phytopathology, 1983Etude de la survie des sporanges exposes a diverses temperatures, humidites relatives et intensites du rayonnement ...
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Peronospora destructor . [Distribution map].
Distribution Maps of Plant Diseases, 2005Abstract A new distribution map is provided for Peronospora destructor (Berk.) Casp. Hosts: Onion etc. (Allium). Information is given on the geographical distribution in AFRICA, Egypt, Ethiopia, Kenya, Libya, Mauritius, Morocco, Rhodesia, South Africa, Tanzania, Uganda, ASIA, Afghanistan, China, India ...
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Australian Journal of Experimental Agriculture, 1994
The disease forecasting system 'Downcast' was developed in Canada to indicate sporulation-infection periods of Peronospora destructor (Berk.) Caspary in onions. During 1989, observations were made of downy mildew development in trap plants and of disease progress in an unsprayed plot of onions in the Lockyer Valley, Queensland, and related back to ...
Gerald SM Fitz, RG O'Brien
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The disease forecasting system 'Downcast' was developed in Canada to indicate sporulation-infection periods of Peronospora destructor (Berk.) Caspary in onions. During 1989, observations were made of downy mildew development in trap plants and of disease progress in an unsprayed plot of onions in the Lockyer Valley, Queensland, and related back to ...
Gerald SM Fitz, RG O'Brien
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Mycological Research, 1991
The interactions between Peronospora destructor and its Allium hosts were studied to compare reactions in resistant and susceptible hosts. The parenchymatous cells of A. roylei and of the amphidiploid A. fistulosum × roylei react hypersensitively. In the tissue of A. tuberosum the hyphae and haustoria of P.
A. Kofoet, V. Zinkernagel
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The interactions between Peronospora destructor and its Allium hosts were studied to compare reactions in resistant and susceptible hosts. The parenchymatous cells of A. roylei and of the amphidiploid A. fistulosum × roylei react hypersensitively. In the tissue of A. tuberosum the hyphae and haustoria of P.
A. Kofoet, V. Zinkernagel
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Canadian Journal of Plant Pathology, 1984
(1984). Relationships of temperature, moisture, and inoculum density to the infection cycle of Peronospora destructor. Canadian Journal of Plant Pathology: Vol. 6, No. 2, pp. 127-134.
P.D. Hildebrand, J.C. Sutton
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(1984). Relationships of temperature, moisture, and inoculum density to the infection cycle of Peronospora destructor. Canadian Journal of Plant Pathology: Vol. 6, No. 2, pp. 127-134.
P.D. Hildebrand, J.C. Sutton
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Canadian Journal of Plant Pathology, 1984
(1984). Effects of weather variables on spore survival and infection of onion leaves by Peronospora destructor. Canadian Journal of Plant Pathology: Vol. 6, No. 2, pp. 119-126.
P.D. Hildebrand, J.C. Sutton
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(1984). Effects of weather variables on spore survival and infection of onion leaves by Peronospora destructor. Canadian Journal of Plant Pathology: Vol. 6, No. 2, pp. 119-126.
P.D. Hildebrand, J.C. Sutton
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Journal of Plant Diseases and Protection, 2007
Downy mildew diseases are a major problem in conventional and organic vegetable production. In organic farming systems the use of plant resistance improvers (PRI) is one opportunity to alleviate this problem, but the efficiency of these products is not included in the registration of PRI in Germany.
A. Kofoet, K. Fischer
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Downy mildew diseases are a major problem in conventional and organic vegetable production. In organic farming systems the use of plant resistance improvers (PRI) is one opportunity to alleviate this problem, but the efficiency of these products is not included in the registration of PRI in Germany.
A. Kofoet, K. Fischer
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Australian Journal of Experimental Agriculture, 1992
Two isolates of Peronospora destructor differed in their sensitivities to phenylamide fungicides. An isolate (3014) from the Lockyer Valley did not respond to increasing concentrations of metalaxyl, benalaxyl and oxadixyl between 0.1 and 200 mg a.i./L. An isolate (2967) from Bundaberg was sensitive to these fungicides, with EC50 values (concentrations ...
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Two isolates of Peronospora destructor differed in their sensitivities to phenylamide fungicides. An isolate (3014) from the Lockyer Valley did not respond to increasing concentrations of metalaxyl, benalaxyl and oxadixyl between 0.1 and 200 mg a.i./L. An isolate (2967) from Bundaberg was sensitive to these fungicides, with EC50 values (concentrations ...
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Prognoza i suzbijanje plamenjače luka [Peronospora destructor (Berk.) Casp. ex Berk.]
Glasilo biljne zaštite, 2002PROGNOZA I SUZBI JANJE PLAMENJAČE LUKA [Peronospora destructor (Berk.) Casp. ex Berk.] U Međimurju se posljednjih godina prizvodnja luka se utrostučila s tendenciom porasta, plamenjača se postala sve veći problem i zahtjeva sve češču primjenu fungicida.U članku su navededeni simptomi bolesti.
Šubić, Milorad, Cvjetković, Bogdan
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First Report of Downy Mildew of Chives Caused by Peronospora destructor in the Pacific Northwest
Plant Health Progress, 2003Chive (Allium schoenoprasum L.) is one of the specialty crops grown by farmers in the Puget Sound region of Washington State. In September, 2002, downy mildew symptoms were observed in a 0.2 hectare field planting of chive near Fall City, King County, WA. Downy mildew had not been reported previously on chive in the Pacific Northwest.
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