Insecticidal Action of Carbamates on the Eggs of the House Cricket1,2
Author: HARTMAN, MARGARET J.
Source: Journal of Economic Entomology, Volume 65, Number 3, June 1972 , pp. 638-640(3)
Publisher: Entomological Society of America
Abstract:Embryonic development of Acheta domesticus (L.) took 9 days at 35. When eggs were dosed with carbaryl or propoxur 3-8 days after deposition, development was normal, and no mortality occurred. Eggs dosed at day 1 or 2 were killed immediately, but this mortality could be caused by the lethal effects of the carrier (DMSO). Cholinesterase (ChE) activity was recorded first at day 4 and increased to maximum embryonic levels by day 7, increasing only slightly at hatching.
Carbamates when applied 3-8 days after deposition caused an immediate decrease in the ChE activity level without initiating mortality. ChE activity levels tended to return to normal within 3 days after dosage. Eggs when dosed with carbaryl at Day 3 had a higher ChE activity at hatching than did undosed controls.
Pretreatment of eggs did not change the susceptibility of the nymphs to anticholinesterases in most cases. How- ever, nymphs with a ChE activity level higher than normal at hatching (dosed with carbaryl at Day 3) were less susceptible to anticholinesterase agents than were nymphs with a normal ChE activity level.
Document Type: Research Article
Publication date: June 1, 1972
- 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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