Sublethal Doses of Sodium Fluoride Affecting Fecundity of Confused Flour Beetles1,2
When pairs of Tribolium confusum Jacquelin duVal, were placed on the day of emergence in 1 g of unbleached enriched "Patent" wheat flour containing 0, 10-410-3, 10-2and 10-1% NaF for 7 days, and then transferred: (A) to the same level of poison; (B) to poisoned flour from unpoisoned flour; and (C) to unpoisoned flour from poisoned f1ollr, egg production (through the 27th day) was significantly increased by limited exposure to poison (Treatment C) with pronounced stimulation at 10-1% poison. Egg production, as well as survival, was adversely affected by prolonged exposure (Treatments A and B) to 10-1% poison
In a 2an test, where pairs of beetles were placed in 1 g of flour containing 1% NaF for 0, 2, 4, and 6 days, then transferred to unpoisoned flour, the mean total egg production per female following 2 and 4 days' exposure (126.3 and 122.7) was significantly greater than that of the control group (116.0). The poison had an adverse effect through the 1st egg-collection period (7th-12th day) following exposure for 4 and 6 days, but stimulation was apparent for the rest of the collection periods.
Document Type: Research Article
Publication date: April 1, 1972
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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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