Effectiveness of Lindane, DDT and Monocrotophos for the Control of Corn Borer Ostrinia furnicalis Guenee (Lepidoptera:Pyralidae) in Maize on New Britain.

Abstract

Within Papua New Guinea the corn borer Ostrinia furnicalis Guen. is a pest of maize in_ the Gazelle Peninsula of New Britain and on New Ireland. DDT (e.c.) lindane (granules and e.c.) and monocrotophos ( w-s.c.) were tested against o. furnicalis in maize _at the Lowlands Agricultural Experiment Station, Keravat, New Britain. Both monocrotophos as a water soluble concentrate, and lindane granules when applied at 6, 8, 10 and 12 weeks post planting at the rate of 1 kg a.i. per hectare per application significantly reduced the incidence of borer in both stem and cobs. However significant yield differences were not obtained.