The Chemotherapeutic Value of Several Insecticides for Larvae of Certain Leaf Mining Insects1

Abstract

Field tests were made on 3 spp. of insects, the larvae of which develop wholly within host leaves. Against the boxwood leaf miner (Monarthopalpus buxi). aldrin was less effective than dieldrin, but both were more effective than nicotine sulfate, DDT, benzene hexachloride and lindane. Aldrin and dieldrin were equally effective for first instar holly leaf miner larvae (Phytomyza ilicis) inside leaves; chlordane and lindane were less effective. For 1st and 2d generation birch leaf miner larvae (Fenusa pusilla) inside leaves of gray birch, the descending order of effectiveness was dieldrin, aldrin, nicotine sulfate and chlordane. DDT had slight effect.