Enhanced fumigant toxicity of allyl acetate to stored-product beetles in the presence of carbon dioxide

Toxicity of allyl acetate (5–25 mg/l doses) to mixed-age cultures of stored-product beetles including Cryptolestes ferrugineus, Lasioderma serricorne, Oryzaephilus surinamensis, Rhyzopertha dominica, Sitophilus oryzae and Tribolium castaneum in the presence of carbon dioxide (CO 2) (10% and 20%) wit...

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Bibliographic Details
Published in:Journal of stored products research 2007, Vol.43 (1), p.45-48
Main Authors: Leelaja, B.C., Rajashekar, Y., Vanitha Reddy, P., Begum, Khamrunissa, Rajendran, S.
Format: Article
Language:English
Subjects:
acetates
adjuvants
Allyl acetate
Allyl acetate+CO 2 mixtures
Biological and medical sciences
carbon dioxide
Coleoptera
Cryptolestes ferrugineus
dose response
fumigant insecticides
fumigation
Fumigation toxicity
Fundamental and applied biological sciences. Psychology
Invertebrates
Lasioderma serricorne
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
mortality
Oryzaephilus surinamensis
pesticide synergists
Pests of stored products
Rhyzopertha dominica
Sitophilus oryzae
storage insects
Stored-product beetles
toxicity
Tribolium castaneum
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Summary:Toxicity of allyl acetate (5–25 mg/l doses) to mixed-age cultures of stored-product beetles including Cryptolestes ferrugineus, Lasioderma serricorne, Oryzaephilus surinamensis, Rhyzopertha dominica, Sitophilus oryzae and Tribolium castaneum in the presence of carbon dioxide (CO 2) (10% and 20%) with a 48-h exposure period was studied in the laboratory at 27±2 °C. Depending on dosage and the insect species, the fumigant toxicity of allyl acetate was enhanced by CO 2. At most of the allyl acetate+CO 2 combinations, increased mortality was observed in C. ferrugineus, O. surinamensis and S. oryzae. In L. serricorne and T. castaneum, which are tolerant to allyl acetate, higher mortality due to CO 2 was achieved at selected dose combinations only (e.g. 15 mg/l allyl acetate+20% CO 2). Significant increase in mortality of R. dominica (the most susceptible species to allyl acetate) exposed to allyl acetate in the presence of CO 2 was not evident except at the lower dose of 5 mg/l allyl acetate+CO 2 that caused 31.7% mortality. The mortality data show that CO 2 could be used as an adjuvant for allyl acetate.
ISSN:0022-474X
1879-1212
DOI:10.1016/j.jspr.2005.09.004