Chervil is used by gardeners to protect vegetable plants from slugs.
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Alfalfa planted in strips among cotton, to draw away lygus bugs, while castor beans surround the field, or tobacco is planted in strips among it, to protect from the budworm Heliothis.
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He started Swanton Berry Farm in 1983 near Santa Cruz, California and subsequently developed a wide range of new methods, which include crop rotations, such as broccoli and brussels sprouts, trap crops such as mustard and alfalfa, and the use of natural predators, to control strawberry specific pests and diseases.