摘要
室内使用敌百虫与喹硫磷混配对水稻三化螟毒力测定表明,增效作用明显,以配方C的毒力最高,共毒系数达398.10。据此研制了35%敌·喹乳油EC,田间试验防治三化螟效果良好,每667m^2不同剂量的保苗、保穗、杀虫作用80mL依次为71.33%～74.05%、66.01%～66.17%和72.15%～75.50%:100mL依次为84.75%～96.36%、76.41%～90.93%和80.58%～83.52%;120mL依次为89.54～96.36%、81.67%～95.86%和87.08%～89.42%,该混配剂对高等动物的毒性较低,有较好的安全性。
Laboratory bioassay were conducted to evaluate the co-toxicity co-effieiency （CTC）of a seris of mixiture of trichlorfon and quinalphos against yellow rice borer （YRB）.The CTC were193.18,343.46 and 398.10. According to the maximun of proper proportion of trichlorfon to quinalphos a synergisticuly mixture 35% EC formulation was manufactured.Fields experiment the compound was highly effective in controlling YRB.At an application dosage of 80mL/667m^2,the efficacy were 71.33%-74.05%.66.01%-66.17% and72.15%-75.50%, respectively in terms of dead heart,white head of rice and mortality of larva.Application dosage100mL/667m^2,84. 75%-96.36%.76.41%-90.93% and 80.58%-83.50%,respectively.Application dosage 120mL/667m^2,89.54-96.36%. 81.67%-95.86% and 87.08%-89.42% ,respectively.This mixture is lower toxicity to mammals than quinalphos and triazophos.
出处
《浙江化工》
CAS
2007年第10期31-34,共4页
Zhejiang Chemical Industry
关键词
三化螟
敌百虫
喹硫磷
增效
防治效果
scirpaphaga incertulas （walker）.trichiorfon
quinalphos
synergistic
control effect
