Cutworms are dull colored gray, brown, or black caterpillars of night-flying moths. Some may have a few bristly hairs. They do most of their damage at night, hiding during the day curled up just below the top of the soil. The main destruction comes from the cutworms eating away at young plant’s stems at soil level, basically chopping the plant down. Some varieties will climb the plant, feeding on leaves and fruit.
The insecticide Diazinon can be used prior to planting, tilling the soil two to three inches deep immediately. Organic methods are: Place a swizel stick right up next to young plants. That way the worm can not cut all the way around the base of the plant. Put a cardboard collar around the plant one inch deep or so. Scatter crushed egg shells or mulched oak leaves around the plants. Cultivating close to plants will help to destroy any worms just below the soil; and as usual, keeping a clean weed- free garden will deter the moth from laying its eggs in your garden.
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