Carbon Disulfide Effectiveness on Flour Beetles in Relation to Temperature and Exposure Time1
Authors: GOVINDAN, M.; CUTKOMP, L. K.
Source: Journal of Economic Entomology, Volume 54, Number 6, December 1961 , pp. 1121-1127(7)
Publisher: Entomological Society of America
Abstract:The influence of posttreatment temperatures and time of exposure have been studied using the fumigant carbon disulfide. Flour beetle adults, Tribolium confusum Jacquelin du Val and T. castancum (Herbst) were tested. The temperature effects were also studied during fumigation and prefumigation periods, hut greatest attention was given to the nonlinear responses resulting from different environmental temperatures following fumigation.
The results agree with most previous research in showing a positive linear relationship between treatment temperatures and per cent mortality. Narcosis of the insects followed the same relationship and in addition, the presence of a fumigant-tissue complex corresponded to the mortality. Posttreatment temperatures produced dissimilar results in that the greatest effects occurred at 5° and 35. This was evident with mortality, narcosis, and presence of the fumigant in tissues. Retention of carbon disulfide was determined by reacting diethylamine and cupric acetate and measuring colorimetrically at 430 millimicrons. The determination appeared to involve a carbon disulfideinduced material in the insect tissues.
An explanation for the nonlinear response occurring after post-fumigant temperatures undoubtedly includes both biological characteristics and physico-chemical properties of the fumigant. Evidence indicates the persistence of a fumigant-tissue complex at higher posttreatment temperatures.
Document Type: Research Article
Publication date: December 1, 1961
- 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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