![]() ![]() ![]() Remove and destroy infected plants and don’t replant in previously affected soil. Various pathogens can cause different kinds of r oot rots. Ask your county extension service for advice on how to control these pests. Rotate your plantings and don’t plant where this disease has previously occurred. These microscopic worms form knots, or swollen spots, on roots. ![]() Yellowing or stunted plants may have root-knot nematodes. If needed, use a fungicide labeled for this problem. Good air circulation also helps prevent botrytis. Remove and destroy any diseased plant parts and water only during the day so your plants dry out before the sun sets. Portulaca, or moss rose, can suffer from diseases like botrytis, a fungus that shows up as a gray mold in cool, wet weather. Don't put them in a compost pile, where the problem can spread. Sometimes there's no treatment for a disease, and infected plants should be removed and destroyed. ![]()
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