ABSTRACT

Most mite species causing damage to important crops worldwide are included in the families Eriophyidae, Tetranychidae, Tenuipalpidae and Tarsonemidae. Plant insecticides act in several ways: as repellents by driving the insects away due to smell or taste; as antifeedants which cause pests on the plants to reduce their food intake and hence starve them to death; as oviposition deterrents; by preventing pests from laying an egg; or as inhibitors by interfering with the life cycle of the pests. Besides direct mortality, botanical pesticides can cause a reduction in fertility, longevity and fecundity of mites. Rotenone, pyrethrum neem products neem oil and wild tobacco (Nicotianagossei) are effective against soft-bodied insects and mites. Obviously, in large-scale field utilization of Botanic agricultural chemicals, there must be an adequate and constant supply of candidate plants to the areas in need.