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The problem will progress up the plants until they’re virtually bare. General-purpose garden fungicides will control this late-spring disease that is made worse by water on leaves. Spider mites.
Cladosporium fulvum is an Ascomycete called Passalora fulva, a non-obligate pathogen that causes the disease on tomatoes known as the tomato leaf mold. [1] P. fulva only attacks tomato plants, especially the foliage, and it is a common disease in greenhouses, but can also occur in the field. [2] The pathogen is likely to grow in humid and cool ...
Black Krim heirloom tomato cut open through the top. The Black Krim (Solanum lycopersicum) [1] (also known as Black Crimea and Noire de Crimée) is an heirloom tomato originating from Crimea. [2] The plant is open-pollinated, indeterminate, bearing 8 ounce flattened globe fruits with a diameter around 8-12 centimeters. The unique color of the ...
Pseudocercospora fuligena is a fungal plant pathogen infecting tomatoes. [2] It is the cause of the fungal disease black leaf mold. [3] The fungus was first described in the Philippines in 1938 and has since been reported in numerous countries throughout the tropics and subtropics.
The foliage of affected tomato plants shows mottling, with alternating yellowish and darker green areas, the latter often appearing thicker and raised giving a blister-like appearance. The leaves tend to be fern-like in appearance with pointed tips and younger leaves may be twisted. The fruit may be distorted, yellow blotches and necrotic spots ...
C. coccodes can cause lesions, twisted leaves, and a bleached color on onion. [4] On tomato, can see that there are sunken in dark spots. As the disease continues to develop can begin to see spots that are rotting. The pathogen can infect both green and ripe fruit; spots are not evident on green right away, but over time they develop. [5]
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]
A. a. f. sp. lycopersici (AAL) infects only certain cultivars of tomato plants and is often referred to as Alternaria stem canker of tomato. [3] AAL ' s main symptom is cankers in the stem. It resides in seeds and seedlings, and is often spread by spores as they become airborne and land on plants. It can also spread throughout other plants. [4]