Beneficial nematodes are rapidly gaining in popularity as a proven method of eradication of insect pests. What are Beneficial Nematodes? Members of the Steinernematidae and Heterorhabditidae families, beneficial nematodes for gardening purposes are colorless roundworms which are non-segmented, elongated in shape and usually microscopic and commonly found living within the soil. These roundworms can be used to control [...] ...