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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.
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 ...
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 ...
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.
The fungus Trichoderma viride is a biocontrol agent that has proven to control this disease in an environmentally friendly manner. It can also manage Fusarium wilt in cucumber, tomato, and various other crops. [citation needed] F.oxysporum f. sp. radicis-cucumerinum is responsible for the root and stem rot of cucumbers (Cucumis sativus). [13]
The first day of spring is here and that means it's time to get the plants ready for your garden. Check out these handy guides on when to start your plants.
Rain can wash spores into the soil where they infect young tubers, and the spores can also travel long distances on the wind. The early stages of blight are easily missed. Symptoms include the appearance of dark blotches on leaf tips and plant stems. White mold will appear under the leaves in humid conditions and the whole plant may quickly ...
Here's a handy guide for diagnosing and treating your lawn's post-summer damage.