氟腈·三唑磷等3种药剂对水稻叶基部不同生态位害虫兼顾作用及其主要天敌的影响  

Effect of Three Kinds of Pharmaceutical on Various Niche Pests in the Base of Rice Leaf and Their Influence on Main Natural Enemies

作　　者：叶建人 冯永斌 黄贤夫 陈海波 蔡娟娟 李程巧 

机构地区：[1]浙江省温岭市植保站,浙江温岭317500

出　　处：《农药》2009年第8期609-610,621,共3页Agrochemicals

基　　金：浙江省重大科技专项(优先主题)农业项目(2008C12072-2);浙江省"三农五方"科技协作项目(2006-04);温岭市科技局项目[温科(2006)15号]

摘　　要：在稻纵卷叶螟2、3龄幼虫高峰期和稻飞虱低龄若虫高峰期喷施氟腈·三唑磷1200mL/hm2、毒死蜱1500mL/hm2和氟虫腈750mL/hm2进行兼顾性防效试验,药后5d,对稻纵卷叶螟的防效分别为66.50%、54.81%、70.79%,保叶效果分别为61.91%、65.38%、49.52%;这3种药剂对褐飞虱、白背飞虱、灰飞虱均有一定的防效,毒死蜱兼顾性最强,药后30d对褐飞虱、白背飞虱、灰飞虱防效分别为87.75%、34.32%、76.03%,同时对黑肩绿盲蝽和蜘蛛的杀伤率也较高,分别达86.58%和68.99%。Field trials on the control of fipronil.triazophos, chlorpyrifos and fipronil at the application rate of 1200, 1500 and 750 mL/ha against 2-3th larva of Cnaphalocrocis medinalis arid small nymphae of rice planthopper were carried out in the rice plant field. The results showed that after five days, the effect of three insecticides were 66.50, 54.81 and 70.79% against Cnaphalocrocis medinalis. The effect of protect leave were 61.91, 65.38, 49.52%. Three insecticides had a best effective on Sogatella furcifera, Nilaparvata lugens and Laodelphax stn＇atellus. After 30 days, the effects of chlorpyrifos were 87.75, 34.32, 76.03% on three rice planthoppers and were 86.58, 68.99% on Cyrtorrhinus lividipennis and spider, respectively.

关 键 词：药剂 害虫和天敌生态位 防治 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治]