The toxicity of phosphine, methyl bromide, 1,1,1-trichloroethane and carbon dioxide alone and as mixtures to the pupae of red flour beetle, Tribolium castaneum Herbst.
IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore
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http://ir.cftri.com/8197/
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| Title |
The toxicity of phosphine, methyl bromide, 1,1,1-trichloroethane and carbon dioxide alone and as mixtures to the pupae of red flour beetle, Tribolium castaneum Herbst.
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| Creator |
Rajendran, S.
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26 Pesticide Chemistry
17 Toxicology |
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| Description |
The toxicity of phosphine, methyl bromide, 1,1,1-trichloroethane (methylchloroform) and carbon dioxide, and mixtures of phosphine + methyl bromide, methyl bromide + methylchloroform, phosphine + carbon dioxide, and methyl bromide + carbon dioxide to 1- to 2-day-old pupae of the tenebrionid flour pest Tribolium castaneum was investigated. Joint action ratios estimated at LD50 and LD90 for a 24-h exposure indicated no enhancement of toxicity for mixtures of phosphine and methyl bromide, or methylchloroform and methyl bromide on the pupae. Carbon dioxide up to 40% in air enhanced the toxic action of phosphine as well as of methyl bromide. Higher levels of carbon dioxide, however, failed to improve the toxicity of phosphine or methyl bromide proportionately. Carbon dioxide used alone produced a maximum of 11% mortality of the pupae exposed to 10-70% levels for 24 h. The order of toxicity of the fumigants both at LD50 and LD90 was phosphine > methyl bromide > methylchloroform.
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| Date |
1990
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Article
PeerReviewed |
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| Format |
pdf
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| Language |
en
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| Identifier |
http://ir.cftri.com/8197/1/Pestic.%20Sci.%201990%2C%2029%2C%2075-83.pdf
Rajendran, S. (1990) The toxicity of phosphine, methyl bromide, 1,1,1-trichloroethane and carbon dioxide alone and as mixtures to the pupae of red flour beetle, Tribolium castaneum Herbst. Pesticide Science, 29 (1). pp. 75-83. |
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