Results 151 to 160 of about 10,936 (187)
Some of the next articles are maybe not open access.
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 ...
openaire +1 more source
Survival of Detached Sporangia ofPeronospora destructorandPeronospora tabacina
Phytopathology, 1983Etude de la survie des sporanges exposes a diverses temperatures, humidites relatives et intensites du rayonnement ...
openaire +1 more source
Polyetic development of the obligate biotrophic plant pathogen «Peronospora destructor»
2022Onion downy mildew, caused by Peronospora destructor, is a serious threat for onion growers worldwide. In southwestern Québec, Canada, a steady increase in the occurrence of onion downy mildew has been observed since the mid-2000s, reaching 33% of affected onion fields in 2014.
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
(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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
(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
openaire +1 more source
Plant Health Progress, 2013
The first reported occurrence of onion downy mildew (ODM) on Vidalia sweet onions in Georgia was in 1999. Although the disease is not common every year, two epidemics have occurred since 1999. The authors report here on the impact of a recent outbreak of ODM on the $100-million Vidalia onion crop in 2012.
Venkatesan Parkunan +4 more
openaire +1 more source
The first reported occurrence of onion downy mildew (ODM) on Vidalia sweet onions in Georgia was in 1999. Although the disease is not common every year, two epidemics have occurred since 1999. The authors report here on the impact of a recent outbreak of ODM on the $100-million Vidalia onion crop in 2012.
Venkatesan Parkunan +4 more
openaire +1 more source
Peronospora destructor (downy mildew of onion)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source