Further evaluation of insecticides for greenbug control on grain sorghum in Kansas

DePew, L.J. (1972) Further evaluation of insecticides for greenbug control on grain sorghum in Kansas. Journal of Economic Entomology, 65 (4). pp. 1095-1098.

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Abstract

In further field-plot tests [cf. RAE/A 59, 2403] in western Kansas in 1970, several new and registered insecticides were evaluated either as foliar or soil treatments for the control of biotype C of Schizaphis graminum (Rond.) on sorghum (Sorghum bicolor) [cf. loc. cit., etc.]. Single foliar sprays of Dursban (chlorpyrifos) at 0.5-0.75 lb/acre, disulfoton at 0.5 lb, monocrotophos at 0.25 lb, dimethoate at 0.25 lb, carbofuran at 0.5 lb, phorate at 0.25 lb, methyl-parathion at 0.5 lb, Shell SD-17250 (N-((methylcarbamoyl)oxy)thioacetimidic acid ester with 3-mercaptopropionitrile, syn isomer) [also known as S-2-cyanoethyl N-((methylcarbamoyl)oxy)thioacetimidate] at 1 lb, methidathion (Supracide) at 0.5 lb and Cyolane (2-(diethoxyphosphinylimino)-1,3-dithiolane) at 0.5 lb gave high initial control, with various degrees of residual toxicity. However, monocrotophos, methidathion, Cyolane and methyl-parathion were phytotoxic. Both liquid and granular formulations applied in the furrow at sowing time gave excellent initial control; granular materials, however, persisted longer than did liquids. Granules of disulfoton at 0.5 and 1 lb gave outstanding control for at least 10 weeks. No soil treatment at the rates used adversely affected seedling emergence

Item Type: Article
Author Affiliation: Kansas State University, Garden City Branch, Agricultural Experiment Station, Garden City, Kans. 67846, USA
Subjects: Plant Protection
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 02 Jul 2012 09:01
Last Modified: 02 Jul 2012 09:02
URI: http://eprints.icrisat.ac.in/id/eprint/6439

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