Some Effects of Guthion Alone and in Combination with DDT and of a Dieldrin-DDT Mixture on Growth and Fruiting of the Cotton Plant1


Source: Journal of Economic Entomology, Volume 52, Number 3, June 1959 , pp. 396-398(3)

Publisher: Entomological Society of America

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Cotton plants were grown under insect-free conditions in the Greenhouse and sprayed with Guthion at three rates, Guthion +DDT, and a dieldrin+DDT mixture. The plants sprayed with Guthion at 0.25pound per acre produced more flowers than the untreated plants, whereas dieldrin+DDT retarded flower formation, boll set, and plant growth. All the insecticides reduced boll size.

The time required for bolls to mature was essentially the same for all treatments. The period for plant maturation was lengthened slightly by the lower rates of Guthion and resulted in the production of a few more bolls. The chlorinated hydrocarbons hastened maturity by having an opposite effect on plant growth. No adverse effect due to any of the treatments was found on the fibers.

Document Type: Research Article

Publication date: June 1, 1959

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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.
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