00583 a2200205 4500 Eng. 632.96 W222p Ware, George Whitaker, 1927- 10617 Pesticides: theory and application San Francisco W.H. Freeman 1983 x,308p. illus. Bibliography: p.289-291 Pesticides 5285 Microorganisms 8451 Biological effects 10618 Biological pest control 10619 San Francisco 10622 Plant injuries ddc GEN 50907 50903