Chlorpyrifos-methyl: Doses that Protect Hard Winter Wheat Against Attack by Stored-Grain Insects2
- 1 December 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 70 (6) , 734-736
- https://doi.org/10.1093/jee/70.6.734
Abstract
Chlorpyrifos-methyl was applied to cleaned, hard winter wheat as a water emulsion at doses ranging from 1–10 ppm AI. The effectiveness of residues in samples withdrawn at intervals during a 12-mo storage showed that initial applications of 3 or more ppm AI controlled rice weevils, Sitophilus oryzae (L.), granary weevils, S. granarius (L.), and maize weevils, S. zeamaiz Motschul-sky. In contrast, a dose as high as 8 ppm was required to kill ca. 90% of the lesser grain borers, Rhyzopertha dominica (F.), 83% of the confused flour beetles, Tribolium confusum, Jacquelin duVal, and 98% of the red flour beetles, T. castaneum, (Herbst) 12 mo after application.This publication has 1 reference indexed in Scilit:
- Pirimiphos-methyl: Gradient of Effective Doses on Hard Winter Wheat Against Attack of Four Species of Adult Insects2Journal of Economic Entomology, 1977