论文部分内容阅读
用 97%巴沙和 4 5 %马拉硫磷乳油对米象 (Sitophilusoryzae)和赤拟谷盗 (Triboliumcastaneum)作毒力测定。根据结果求出巴沙和马拉硫磷处理米象成虫 72小时毒力回归方程 :巴沙为y =2 396 0x - 0 176 0 (r =0 9970 ) ,马拉硫磷为y =2 5 6 42x - 1 0 915 (r =0 985 8) ;巴沙LC50 为 14 4 6 2 99mg/L(95 %置信区间 12 7 7332～ 16 1 5 2 6 6mg/L) ,马拉硫磷LC50 为 2 37 4 5 35mg/L(95 %置信区间 2 0 6 2 0 6 8～ 2 6 8 70 0 3mg/L)。结果表明巴沙对供试米象的毒力比马拉硫磷大得多 ,但巴沙和马拉硫磷对供试赤拟谷盗的毒力均很小
Toxicity tests on Sitophilus oryzae and Tribolium castaneum were carried out using 97% Basa and 45% malathion EC. According to the results, the 72-h virulence regression equation of Baxha and malathion were established: baasha is y = 2 396 0x - 0 176 0 (r = 0 9970), malathion is y = 25 6 42x - 1 0 915 (r = 0 985 8); the LC50 of Basa was 14 4 6 2 99 mg / L (95% confidence interval 12 7 7332 ~ 16 1 5 2 6 6 mg / L), the LC50 of malathion 2 37 4 5 35 mg / L (95% confidence interval 2 0 6 2 0 6 8 ~ 2 6 8 70 0 3mg / L). The results showed that the toxicity of Balsa to test-elephants was much greater than that of malathion, but the toxicity of Balsa and malathion to test-mimicry was low