Granular aldrin, diazinon, heptachlor, parathion (Niran® and phorate were applied at 1, 2, and 4 lb actual toxicant/acre as a 7-in. band treatment at planting time Soil samples taken at various depths both in the treated row and adjacent to the row were bioassayed with house crickets, Acheta domesticus (L.), to determine bioactivity as well as vertical and lateral movement of insecticides. Bioactivity in the field varied with soil type and moisture. Aldrin and heptachlor performed similarly and more consistently than did diazinon, parathion and phorate. Based on the bioassay of all 1 lb per acre treatments from all field plots, diazinon, parathion and phorate bioactivity ranged from 10-70% mortality 4- weeks following treatment to less than 20% after 6 weeks; aldrin and heptachlor produced 80-100% mortality at 8 weeks Horizontal and vertical movement of insecticides varied with the soil type and moisture. Organophosphorus insecticides exhibited less movement than aldrin and heptachlor. Analysis of variance indicated a 4-factor interaction with significance at the 5% level of probability. The response of an insecticide in the soil is a complex one varying with soil type, insecticide, pounds of actual toxicant per acre, and posttreatment data or interval of sampling. All of these factors are interdependent upon one another.
Document Type: Research Article
Publication date: December 1, 1967
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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.