Toxicity of ethyl formate to adult Sitophilus oryzae (L.), Tribolium castaneum (herbst) and Rhyzopertha dominica (F.) |
| |
Authors: | Ni Xin YL Ren RI Forrester Daphne Mahon |
| |
Affiliation: | a Shandong Agricultural University, Tai’an, China b CSIRO Entomology, GPO Box 1700, Canberra, ACT 2601 Australia c Linyi Entry-Exit Inspection and Quarantine Bureau P.R. of China, Linyi, China |
| |
Abstract: | 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) LD50 107.8, 108.8 and 72.8 mg h L−1 and (2) LD99.5 207.4, 167.1 and 122.2 mg h L−1. Endpoint mortality was reached within 24 h of initial exposure. |
| |
Keywords: | Fumigation Fumigant Ethyl formate Ct product Sitophilus oryzae Tribolium castaneum Rhyzopertha dominica |
本文献已被 ScienceDirect 等数据库收录! |
|