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White mold affects a wide range of hosts and causes sclerotinia stem rot. It is known to infect 408 plant species. As a nonspecific plant pathogen, [2] diverse host range and ability to infect plants at any stage of growth makes white mold a serious disease. The fungus can survive on infected tissues, in the soil, and on living plants.
Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive. Infected plants display white powdery spots on the leaves and stems. [1] This mycelial layer may quickly spread to cover all of the leaves.
Oxygen deficiency of tuber accompanying high soil temperature Jelly end rot: Carbohydrate translocation due to second growth Physiological leaf roll: Response to adverse environment Psyllid yellows: Toxic saliva of the potato (tomato) psyllid, Paratrioza cockerelli: Shatter bruise: Mechanical damage to tuber Skinning: Mechanical damage to tuber
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Afterwards, a white mold emerges from the cadaver and produces new spores. A typical isolate of B. bassiana can attack a broad range of insects; various isolates differ in their host range. Beauveria bassiana parasitizing the Colorado potato beetle has been reported to be, in turn, the host of a mycoparasitic fungus Syspastospora parasitica. [11]
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Stromatinia cepivora is a fungus in the division Ascomycota.It is the teleomorph of Sclerotium cepivorum, the cause of white rot in onions, garlic, and leeks. [2] The infective sclerotia remain viable in the soil for many years and are stimulated to germinate by the presence of a susceptible crop.
Master gardener Leimone Waite answers readers’ questions about plants, garden tools and their use, and gardening techniques. Skip to main content. Sign in. Mail. 24/7 Help. For premium support ...