Pest Management Science (2003) 59, 353-357

Jacqueline L. Hooper, James M. Desmarchelier, Yonglin Ren and Sylvia E. Allen (2003)
Toxicity of cyanogen to insects of stored grain
Pest Management Science 59 (3), 353-357
Abstract: Range-finding studies on the toxicity of cyanogen to all stages of five species of stored product Coleoptera are reported. The species were Rhyzopertha dominica (F), Sitophilus granarius (L), Sitophilus Oryzae (L), Tribolium castaneum (Herbst), Tribolium confusum Jacquelin du Val and Ephestia cautella (Walker). Exposures for 24 h to cyanogen at 1.3 mg litre^-1 controlled all external stages. Control of internal stages of Sitophilus species was achieved by a 5-day exposure to initial concentrations between 13.7 and 27.4 mg litre^-1, whereas R dominica was controlled at 13.7 mg litre^-1. Cyanogen showed similar toxicity to all tested external stages and, in this respect, was more similar to methyl bromide than to phosphine. Its toxicity to insects increased with both relative humidity and concentration of carbon dioxide. Cyanogen was toxic to insects whether applied as a gas or in an aqueous solution.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): YongLin Ren

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tribolium castaneum	Stored grain
	Tribolium confusum	Stored grain
	Sitophilus granarius	Stored grain
	Sitophilus oryzae	Stored grain
	Rhyzopertha dominica	Stored grain
	Cadra cautella	Stored grain