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Cercospora melongenae is a fungal plant pathogen that causes leaf spot on eggplant (Solanum melongenum). It is a deuteromycete fungus that is primarily confined to eggplant species. [1] [2] Some other host species are Solanum aethiopicum and Solanum incanum. This plant pathogen only attacks leaves of eggplants and not the fruit. [3]
Helminthosporium solani is a fungal plant pathogen responsible for the plant disease known as silver scurf. Silver scurf is a blemish disease, meaning the effect it has on tubers is mostly cosmetic and affects "fresh market, processing and seed tuber potatoes." [2] There are some reports of it affecting development, meaning growth and tuber yield.
The primary symptom of cavity spot is small half-inch lesions on the roots of the plant. This disease is treated with metalaxyl which allows for almost complete control of the disease. Without metalaxyl studies have found 50–60% of the carrot crop will be infected; after metalaxyl application, incidence is under 1%.
Numerous microbial antagonists, including yeasts and bacteria, are isolated from diverse environments such as soil, plants, compost, and oceans for their potential to control plant diseases. For example, endophyte microorganisms found inside guarana seeds and rhizospheric soil have shown their ability to fight harmful pathogens, making them ...
Specifically, powdery mildew functions by decreasing the fruit production of plants. The ascospores survive on leaf material and cause it to fall onto the ground. Certain biological fungicides, such as Serenade or sulfur products, can be used on plants to inhibit powdery mildew infection. [citation needed]
Plant disease triangle. Epidemiology is the study of factors affecting the outbreak and spread of infectious diseases. [10] A disease triangle describes the basic factors required for plant diseases. These are the host plant, the pathogen, and the environment. Any one of these can be modified to control a disease. [11]