摘要
为了探索利用飞机喷施微胶囊迷向剂防治梨小食心虫的最适试验条件,试验比较了3种施用浓度和2种喷嘴大小的防治效果。结果表明:采用0.7mm的喷嘴、微胶囊迷向剂的施用量1 500g?hm-2为试验最适条件,防治效果最好,其迷向率为97.25%;蛀果率为2.13%,比空白对照减少约21个百分点,比常规化学防治减少约3.32个百分点;相对防效为90.82%,比常规化学防治高出约14个百分点。
In order to explore the optimum condition of aerial control of Grapholitha molesta with microencapsulated mating disruption formulation ,control effect of three kinds of applied concentrations and two kinds of nozzle size were compared .Result shows that ：0 .7 mm nozzle＋application rate of microcapsules isotropic agent being 1 500 g hm -2 can obtain the optimal control effect （the rate of mating disruption being 97 .25% ）;the rate bored fruits is 2 .13% ,which decrease by approximately 21% compared with blank control ,and decrease by approximately 3 .32%than that of conventional chemical control ;relative efficacy is 90 .82% ,higher than that of the conventional chemical control ,being 14% .
出处
《防护林科技》
2014年第6期11-14,共4页
Protection Forest Science and Technology
基金
国家公益性行业(农业)科研专项经费项目(201103024)
农业科技成果转化资金项目(2012GB2A000003)
关键词
梨小食心虫
飞机防治
迷向技术
微胶囊
Grapholitha molesta
aerial control
mating disruption
microcapsule
