Insecticide Tests Against the Boll Weevil and the Bollworm at Tallulah, La., in 1956¹

Author: PFRIMMER, T. R.

Source: Journal of Economic Entomology, Volume 51, Number 1, February 1958 , pp. 41-43(3)

Publisher: Entomological Society of America

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Abstract:

In small-plot experiments with several insecticides applied as dusts and sprays for the control of the boll weevil (Anthonomus grandis Boh.) and the bollworm (Heliothis zea (Boddie)) conducted at Tallulah, Louisiana, during 1956, Guthion gave excellent boll weevil control in all tests at dosages from 0.25 to 0.6 pound per acre. Calcium arsenate dust, methyl parathion at 0.5 and 0.67 pound, EPN at 0.5 and 0.8 pound, and malathion at 2.05 and 3.81 pounds per acre were slightly less effective. Methyl parathion at 0.40 pound, Dipterex and Dow ET-15 at 0.5 pound, and calcium arsenate spray at 12.9 pounds per acre gave only fair control. DDT was included in most of these treatments. In one experiment endrin spray at 0.3 pound gave fair control, but endrin dust at 0.87 pound per acre was ineffective. In other experiments endrin, Thiodan, and heptachlor were ineffective at the dosages used.

Endrin and combination insecticides containing DDT gave good control of the bollworm. At the dosages used Thiodan and Guthion without DDT were comparable to calcium arsenate dust for bollworm control.

Document Type: Research article

Publication date: 1958-02-01

More about this publication?

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.
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