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The Powdery Mildews

Mycologia, 1979
Throughout the temperate zones of the world, on many different kinds of plants, there occurs a whitish fungus growth of the powdery mildew fungi (Figs. 26-1,-3,-6). These fungi, which comprise the family Erysiphaceae, are all obligate parasites and all but a few are ectoparasites.
James W. Kimbrough, D. M. Spencer
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Differentiating Powdery Mildew from False Powdery Mildew

Journal of Industrial Hemp, 2008
ABSTRACT This note continues the “Cannabis Clinic” series, presenting diseases and pests of hemp, featuring color illustrations of signs and symptoms. The fungus Trichothecium roseum produces a white fuzz that covers branches, leaves, and flowering tops of hemp.
John M. McPartland, Karl W. Hillig
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Tomato powdery mildew

Plant Pathology, 1988
A powdery mildew ( Erysiphe sp.) occurred on greenhouse‐grown tomato crops in southern England in 1987. White pustules appeared on the upper surfaces of leaves of affected crops and only rarely on the under surfaces. In greenhouse experiments, stems were very severely affected.
J. T. FLETCHER   +2 more
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Powdery Mildew of Potato

Nature, 1946
POWDERY mildew on potato was first recorded in Great Britain in 1932, when the oidial stage was found on the leaves of seedling potatoes in a glasshouse at Cambridge1. It was again observed at Cambridge in the late summer of 1945, and a field survey was made to determine its prevalence. The mildew was found not only on seedling plants in the greenhouse,
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Conidial germination patterns in powdery mildews

Mycological Research, 2009
Four conidial germination types namely, polygoni (syn. Pseudoidium), cichoracearum (syn. Reticuloidium), pannosa (syn. Fibroidium) and fuliginea (syn. Magnicellulatae) are commonly used as an aid in the identification of the Oidium anamorphs of powdery mildews. However, results of germination tests and a survey of the literature showed that these types
R T A, Cook, U, Braun
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The Disease: Powdery Mildew

2019
The powdery mildew of crucifers shows its symptoms on aerial parts of host plants in the form of white to dirty white circular floury patches on leaves, stems, inflorescence, and siliquae. These floury patches increase in size, and coalesce to cover entire aerial parts of the plant with the increase in atmospheric temperature.
Govind Singh Saharan   +2 more
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Powdery Mildew Perspective

2019
Powdery mildews were first recognized as white powdery appearance on the leaves of Humulus, Acer, Lamia, Galeopsis, and Lithospermum by plant pathogens infection as early as 1753 which was named as Mucor erysiphe. Initially powdery mildews were a fascinating subject of research for mycologists who reported several species of powdery mildews on ...
Govind Singh Saharan   +2 more
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Closing the ranks to attack by powdery mildew

Trends in Plant Science, 2000
Powdery mildews are among the most common plant diseases, infecting over 650 monocot and over 9000 dicot species. Analysis in domesticated barley and wild Arabidopsis has begun to unravel the genetic and molecular frameworks underlying the mechanisms of susceptibility and resistance to these biotrophic fungal pathogens.
P, Schulze-Lefert, J, Vogel
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Powdery Mildew Epilog

2019
Crucifers include very large group of oilseed Brassica species, and vegetable crops grown all over the world for quality vegetable oil and as vegetables apart from a source of fodder crops. The major oil yielding Brassica crops are: B. juncea (Mustard), B. napus (Rapeseed), B. carinata (Ethiopian mustard), B. rapa subsp.
Govind Singh Saharan   +2 more
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