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Septoria lycopersici infects the tomato leaves via the stomata and also by direct penetration of epidermal cells. [3] Symptoms generally include circular or angular lesions most commonly found on the older, lower leaves of the plant. [1] The lesions are generally 2–5 mm in diameter and have a greyish center with brown margins.
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 ...
This week, the Master Gardener also explains the difference between determinate and indeterminate tomatoes (and potatoes, too). Ask the Master Gardener: Tips for growing tomatoes and dealing with ...
Heavy winter rains have wakened the fungal spores in our soil. Tomatomania owner Scott Daigre explains how to keep tomatoes fungus free, plus Southern California plant events.
1. Basil. An Iowa State University study found that tomato insect damage was lessened when planted alongside basil. Plus, it’s the perfect accompaniment to a fresh, juicy tomato! Think of it ...
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]
Senescent leaves with early blight infections and leaves with flea beetle injury are especially important spore sources because the fungus can colonize and produce new spores in these wounded areas. The growth of C. coccodes is most rapid at 80 °F (27 °C), although the fungus can cause infections over a wide range of temperatures between 55 ...
Here's a handy guide for diagnosing and treating your lawn's post-summer damage.