甲维·毒死蜱不同剂型对白背飞虱的防治效果及对稻田蜘蛛安全性评价  

Control Efficiency of Different Formulations of Emamectin Benzoate·Chlorpyrifos against Sogatella furcifera and Evaluation of Their Safety to Predatory Spiders in Rice Fields

作　　者：束兆林[1,2] 赵来成[1,2] 缪康[1,2] 吉沐祥[1,2] 端木和林[3] 束华平 

机构地区：[1]江苏丘陵地区镇江农业科学研究所,江苏句容212400 [2]江苏省绿盾植保农药实验有限公司,江苏句容212400 [3]江苏省句容市农业局,江苏句容212400

出　　处：《江西农业学报》2010年第3期107-109,共3页Acta Agriculturae Jiangxi

基　　金：江苏省重大科技攻关项目(BE2006303);镇江市工业攻关项目(NY20080008)

摘　　要：田间试验结果表明：25％甲维·毒死蜱水乳剂1500～1800mL／hm^2对水稻白背飞虱具良好的防治效果，其中25％甲维·毒死蜱水乳剂1500ml/hm^2的控虫效果优于25％甲维·毒死蜱乳油同剂量的效果；明显低于吡蚜酮对白背飞虱的控制效果；药后1d，25％甲维·毒死蜱水乳剂1500～1800mL／hm^2对田间主要蜘蛛有一定的杀伤率（46．51％～56．60％），但杀伤率低于25％甲维·毒死蜱乳油1500mL／hm^2和毒死蜱处理；药后15d，25％甲雏·毒死蜱水乳剂对稻田主要蜘蛛无杀伤作用。25％甲维·毒死蜱水乳剂防治水稻白背飞虱的剂量应不低于1800mL／hm^2。The field test results showed that applying 25% emamectin benzoate · chlorpyrifos EW 1500 - 1800 mL/hm^2 had good control efficiency on Sogatellafurcifera in rice field, among them 25% emameetin benzoate · chlorpyrifos EW 1500 mL/hm^2 had better control efficiency on Sogatellafurcifera than 25% emamectin benzoate · ehlorpyrifos EC 1500 mL/hm^2, but had significantly lower control efficiency than pymetrozine. One day after treatment, 25% emamcetin benzoate · chlorpyrifos EW 1500 -1800 mL/hm^2 had a certain killing role to the major predatory spiders in rice field, but its killing rate （46.51% -56.60% ） was less than that of 25% enlamectin benzoate · ehlorpyrifos EC 1500 mL/hm^2 and chlorpyrifos treatment. Fifleen days after spraying, 25% emamectin benzoate · chlorpyrifos EW had no killing effect on the main spiders in paddy field. The dosage of 25% emameetin benzoate · chlorpyrifos EW for the control of Sogatella furcifera in rice should be more than 1800 mL/hm^2.

关 键 词：甲维·毒死蜱 白背飞虱 防治效果 安全性 蜘蛛 

分 类 号：S481.9[农业科学—农药学]