Systemic insecticides for control of the introduced Pine sawfly, Diprion similis, with notes on parasite survival.
Injection of White Pines [Pinus strobus] of 4- to 6-in. d.b.h. with phorate, demeton, Chipman R-6199 (O, O-diethyl S-(2-diethylamino) ethyl phosphorothiolate (hydrogen oxalate salt)), and Shell 3562 (dimethyl 1-(dimethylcarbamoyl)-1-propen 2-yl phosphate) resulted in sufficient translocation into the needles to kill feeding larvae of the sawfly. Chipman R-6199 remained toxic to the larvae for 2 years. Phytotoxicity was not observed in any of the injected trees. Hymenopterous and dipterous parasites caged with foliage from injected trees were not adversely affected by the systemics in the foliage. From authors' abstract. KEYWORDS: insect pests \ insect pests \ Hymenoptera \ Insecticides 'Chipman R 6199' \ Insecticides 'Shell 3562' \ Insecticides application injection \ Insecticides demeton \ Insecticides effects \ beneficial insects \ Insecticides phorate \ systemic insecticides \ insecticides \ Parasites \ insect pests \ eff