摘要
通过生物测定方法比较了棉铃虫敏感品系对4.5%高效氯氰菊酯乳油和40%甲·甲·氯乳油两种药剂的毒力反应,结果表明,两者的LC50分别为18.5643mg·kg-1,11.6494mg·kg-1,LC50比值达到1.594,即40%甲·甲·氯乳油对棉铃虫敏感品系的毒力要高于4.5%高效氯氰菊酯乳油,存在显著性差异。
The responses to toxicity of the beta-cypermethrin4.5EC and th e parathion-methyl·phox-im-methyl·beta-cypermethrin40EC were compared by bioassay method on the susceptible of cotton bollworm Helicoverpa armigera.The results showed that the values of LC 50 of two pesticides were18.5643and11.6494mg/kg,the contrastive value of LC 50 of two pesticides was1.594,which agreed with that the former was remar kly best to the later in the toxicity of the susceptible cotton bollworm.
出处
《天津农业科学》
CAS
2003年第2期31-33,共3页
Tianjin Agricultural Sciences
