A search was initiated in 1960 to determine if certain mammalian hormones and related compounds would lower normal fertility rates of the plum curculio, Contrachelus nenuphar (Herbst), when administered by different methods. When fed in the adult diet, Enovid,® 17a-ethynyl-17-hydroxy-5(10)-estren-3-one plus ethynylesteradiol 8-methyl ether; and diethylstilbestrol produce the greatest reduction in fertility. when folic acid, colchicine, and progesterone-diethylstilbestrol were applied directly to the adult insects, no offspring were produced. Male and female curculios that had been subjected to a 1-day residue of aphamide for 18 hours, and males subjected to a 5-day residue for 18 hours when mated to nontreated insects of the opposite sex produced no offspring; however, mortality was very high in the treated insects. In larval treatments only the adults of those larvae treated with Enovid produced no offspring; progesterone-diethylstilbestrol was almost as effective. No deviation from normal mating behavior was observed from any treatment tested.
Document Type: Research Article
Publication date: April 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.