Toxicity of ethyl formate to adult Sitophilus oryzae (L.), Tribolium castaneum (herbst) and Rhyzopertha dominica (F.)
Xin, N., Ren, Y.L., Forrester, R.I., Ming, X. and Mahon, D. (2008) Toxicity of ethyl formate to adult Sitophilus oryzae (L.), Tribolium castaneum (herbst) and Rhyzopertha dominica (F.). Journal of Stored Products Research, 44 (3). pp. 241-246.
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Fumigations were conducted using a continuous flow-through laboratory process to maintain constant concentrations of ethyl formate and low levels (<0.8%) of respiratory carbon dioxide. The procedure minimised the effects of sorption by exposing test insects without media and minimised the effect of carbon dioxide by use of continuous flow. The concentration×time (Ct) products of ethyl formate for adult Sitophilus oryzae, Tribolium castaneum and Rhyzopertha dominica at 25 °C and 70% relative humidity for the 6 h exposure were, respectively: (1) LD 50 107.8, 108.8 and 72.8 mg h L -1 and (2) LD 99.5 207.4, 167.1 and 122.2 mg h L -1. Endpoint mortality was reached within 24 h of initial exposure.
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