In a study of the influence of moisture content and storage temperature on the residual persistence and effectiveness of selected dosages of 5 insecticides in protecting stored grain against insects, the insecticides used and dosages applied in acetone solutions onto Ramona wheat included DDVP (diehlorvos)- IO ppm; diazinon-10 ppm; Dibrom® (naled)-5 ppm; Guthion®O,O-dimethyl S-( 4-oxo-1,2,3-benzotriazin-3(4H)-yImethyl) phosphorodithioate-5 ppm; and ronnel-15 ppm. The influence of moistme on insecticides, applied on wheat with a graded moisture range of 10%, 13%, and 16%, and stored at 60˚ F, was shown by reduced mortalities of the rice weevil, Sitophilus Oryzae (L.), and increased number of progeny with increases in moisture content of grain. Likewise, the influence of storage temperature on insecticides applied to wheat of 10% moisture content and stored at graded ranges of 60˚, 70˚, 80˚, 90˚, and 100˚ F was shown by reduced mortalities of the rice weevil and increased number of progeny with increases in storage temperature. Under the conditions of the study, residual effectiveness of insecticide treatments was in the order of diazinon>Guthion >ronnel>DDVP>Dibrom.
Document Type: Research Article
Publication date: February 1, 1964
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.