Evaluation of Chemicals for Control of Slugs on Field Corn in Ohio123

Abstract

Field tests were made in 1968 to evaluate carbaryl. phorate, Zectran® (4-dimcthylamino-3.5-xylyl methylcarbamate) Zinophos® (O, O-diethyl O-2-pyrazinyl phosphorothioate). Frescon® (4-tritylmorpholine). Dinoseb (dinitro-o-sec-butylphenol). and Ortho Bug-Geta® meal (5% calcium arsenate and 3.25% metaldehyde), for control of the slugs. primarily the gray garden slug. Deroceras reticulatum (Müller), which caused widespread damage in field corn in Ohio in 1968. Phorate applied 4—6 hours after dark as an emulsion at a rate of I and 1.5 lb/acre was the most effective, and there was little difference between the 2 rates. Also, the metaldehyde meal was effective when it was applied at a rate of 2 lb of actual metal metaldehyde per acre.