許多茶農嫌人工防治麻煩,功效不高,不如化學農藥快速,然在無公害生產中,尤其是有機茶園、綠色茶園中,必須減少化學農藥的使用,預防農殘超標,人工防治即使功效不高也需大力加強。人工防治主要有以下技術:
1、rengongbusha。dangbingchonghaifashengshuliangjiaoshaoshi,keliyongrenlihuojiandanqixiejinxingbusha。ruyongbuchongwangbushaxiaolvyechanhelachanchengchong,yongzhumiepianbudachihuochengchong,yongtiesigoushatianniuyouchong。youxiehaichongjuyoujiasidexixing,ruchaliwenxiangjia,dangchengchongdafashengshiqi,yongbomopuzaichaxing,qingqingqiaodachapeng,shihaichongdiaoluozaibomoshang,ranhoujizhongxiaomie,zuihaonengzaibomoshangtuyixienianchongjiao,zheyanghaichongburongyitaoli。
2、燈光誘殺。燈光誘殺主要是利用害蟲的趨光性,一般以電燈、黑光燈作為光源,將燈掛於高出茶園1m左zuo右you的de地di方fang,下xia方fang放fang一yi水shui盆pen,滴di入ru少shao許xu煤mei油you或huo肥fei皂zao水shui,或huo燈deng下xia安an裝zhuang集ji蟲chong漏lou鬥dou或huo毒du瓶ping,燈deng光guang誘you殺sha有you時shi也ye會hui把ba天tian敵di誘you來lai,要yao盡jin量liang避bi開kai天tian敵di高gao峰feng期qi開kai燈deng。另ling外wai,可ke使shi用yong高gao壓ya電dian網wang誘you殺sha害hai蟲chong,但dan需xu安an裝zhuang在zai較jiao高gao的de電dian杆gan上shang,以yi免mian人ren畜chu接jie觸chu。
3、食物誘殺。用糖(45%)、醋(45%)、黃酒(10%)放入鍋中微火熬煮成糊狀糖醋液,倒入盆底和盆壁,放在高出茶蓬的地方,具有趨化性的卷葉蛾、小xiao地di老lao虎hu等deng成cheng蟲chong會hui飛fei來lai取qu食shi,接jie觸chu糖tang醋cu液ye後hou粘zhan連lian致zhi死si。也ye可ke用yong穀gu物wu炒chao香xiang製zhi成cheng餌er料liao誘you殺sha地di老lao虎hu等deng幼you蟲chong和he螻lou蛄gu。在zai茶cha園yuan內nei堆dui幹gan草cao垛duo或huo楊yang樹shu枝zhi也ye可ke誘you殺sha一yi部bu分fen害hai蟲chong。
4、yixingyoujihuoyousha。liyonghaichongyixingjiandeyouhuonenglilaiyoujihuoyoushahaichong。liru,jianggangyuhuadeciezhiyusizhoutuyounianjiaowuzhidelongnei,ciesanfadexingjisukeyiyoujidaoxiongelaijiaopei,tongguodaliangbushaxionge,jianshaocixiongjiaopeidejilv,dadaojianshaoxiadaiyouxiaoluanliangdemude。
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