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2. Alternaria solani - Wikipedia

   en.wikipedia.org/wiki/Alternaria_solani

   Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato. Despite the name "early", foliar symptoms usually occur on older leaves. [3]

3. Phytophthora infestans - Wikipedia

   en.wikipedia.org/wiki/Phytophthora_infestans

   Phytophthora infestans is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or potato blight. Early blight , caused by Alternaria solani , is also often called "potato blight".

4. Fungicide use in the United States - Wikipedia

   en.wikipedia.org/wiki/Fungicide_use_in_the...

   Botrytis blight is a grey mold fungus that was first observed on New Jersey blueberries in 1924 and by the 1950s was considered the most dangerous disease of the Northwest. [50] USDA estimates that 95% of Northwestern blueberry crop and 40% of eastern blueberry fields are infected with botrytis blight.

5. List of tomato diseases - Wikipedia

   en.wikipedia.org/wiki/List_of_tomato_diseases

   Common mosaic of tomato (internal browning of fruit) Tobacco mosaic virus (TMV) Curly top: Curtovirus: Potato virus Y Potato virus Y: Pseudo curly top Tomato pseudo-curly top virus: Tomato bushy stunt Tomato bushy stunt virus: Tomato etch Tobacco etch virus: Tomato fern leaf Cucumber mosaic virus: Tomato mosaic Tomato mosaic virus Tomato mottle

6. Alternaria alternata - Wikipedia

   en.wikipedia.org/wiki/Alternaria_alternata

   Alternaria alternata is a fungus causing leaf spots, rots, and blights on many plant parts, and other diseases. It is an opportunistic [ citation needed ] pathogen on over 380 host species of plant. It can also cause upper respiratory tract infections [ 1 ] and asthma in humans with compromised immunity.

7. Leaf spot - Wikipedia

   en.wikipedia.org/wiki/Leaf_spot

   Registered fungicides in use are thiophanate methyl, chlorothalonil, ferban and mancozeb. [11] These chemicals can be applied as foliar sprays, seed and soil treatments or as post-harvest treatment. [7] Strains of plant pathogenic bacteria becoming resistant to chemicals contributes to the difficulty of managing bacterial leaf spot disease.

8. Blight - Wikipedia

   en.wikipedia.org/wiki/Blight

   Bacterial seedling blight of rice (Oryza sativa), caused by pathogen Burkholderia plantarii [4] Early blight of potato and tomato, caused by species of the ubiquitous fungal genus Alternaria; Leaf blight of the grasses e.g. Ascochyta species [5] and Alternaria triticina that causes blight in wheat [6]

9. Plant disease - Wikipedia

   en.wikipedia.org/wiki/Plant_disease

   Fungal diseases may be controlled through the use of fungicides and other agricultural practices. However, new races of fungi often evolve that are resistant to various fungicides. Biotrophic fungal pathogens colonize living plant tissue and obtain nutrients from living host cells.