【摘要】 进行了40%蛆除乳油对韭蛆室内毒力及田间防效的测定。结果表明,LC50值为444.8007mg/kg,相应共毒系数为162.46,表现为明显的增效作用;使用4500mL/hm2处理田间防治韭蛆,药后3天杀虫效果为80.61%,药后14天达到88.34%,药后20天保苗效果尚维持在85.54%,与辛硫磷无显著差异,显著优于其它药剂处理。更多还原

【Abstract】 Efficacy of virulence and the field trials of Quchu40EC in control of Bradysia odoriphaga were studied,the value of LC 50 is444.8007mg /kg,the CTC is162.46,which increased distinctly.The field insecticidal efficacy of4500mL/hm 2 of Quchu40EC was80.61%after3days,88.34%after14days,and the efficacy of protective plant was85.54%after20days,which have no significant differ-ence with the7500mL/hm 2 of phoxim40EC and outbalance other pesticides distinctly.更多还原