old maid definition, meaning, what is old maid: a woman who is not married or has not had a sexual relationship and is not now young. Learn more.
âWhen you get soybeans up 36 in. or taller at a seeding rate of 120,000-140,000 seeds/acre and you get August rains and humidity that follows, those soybean plants are highly susceptible to disease. Under those conditions is when I think fungicides really help on soybeans,â Moore says.
Remove and destroy spinach plants affected by downy mildew. Apply a fungicide to plants not yet showing symptoms of disease. Spray spinach with a fungicide containing an active ingredient such as mefenoxam for effective control of mildew. Examine plants for white rust disease, a common problem on spinach.Search first for the presence of tiny yellow specks on leaf surfaces. Look for chalk-white, cheesy, raised spore masses (sori) which occur mostly on the underleaf surfaces, according to the University of Illinois Extension.. Search spinach leaves for symptoms of downy mildew disease. Look for yellow spots on leaves that grow and fade to a light brown hue. Search the undersides of leaves for a fuzzy growth in a purple hue.