夜(ye)蛾(e)類(lei)幼(you)蟲(chong)由(you)於(yu)體(ti)型(xing)較(jiao)大(da),多(duo)數(shu)具(ju)有(you)暴(bao)食(shi)習(xi)性(xing),很(hen)多(duo)蔬(shu)菜(cai)葉(ye)片(pian)可(ke)被(bei)一(yi)夜(ye)取(qu)食(shi),成(cheng)為(wei)光(guang)杆(gan)兒(er)。目(mu)前(qian)來(lai)說(shuo)北(bei)方(fang)地(di)區(qu)為(wei)害(hai)較(jiao)為(wei)嚴(yan)重(zhong)的(de)夜(ye)蛾(e)類(lei)害(hai)蟲(chong)主(zhu)要(yao)有(you)斜(xie)紋(wen)夜(ye)蛾(e)、tiancaiyeeheganlanyee,youqishixiewenyee,jinjinianzaibeifangdiquchangjuefasheng,henduocainongduicishushouwuce,zhelizhongdianjieshaoyixiazhejizhonghaichongdezonghefangzhicuoshi。
抓zhua住zhu成cheng蟲chong活huo動dong盛sheng期qi,集ji中zhong消xiao滅mie成cheng蟲chong。在zai夜ye蛾e類lei害hai蟲chong發fa生sheng期qi,利li用yong成cheng蟲chong的de趨qu光guang性xing,可ke在zai田tian間jian地di頭tou設she置zhi黑hei光guang燈deng誘you殺sha成cheng蟲chong,尤you其qi對dui斜xie紋wen夜ye蛾e等deng具ju有you群qun集ji起qi飛fei特te性xing的de成cheng蟲chong防fang治zhi效xiao果guo較jiao好hao。另ling外wai,可ke在zai田tian間jian放fang置zhi糖tang醋cu盆pen,每mei畝mu放fang置zhi6~10盆(糖醋液配比為糖∶酒∶醋∶水=6∶1∶3∶10,同時需要加入適量敵百蟲)。通過殺滅成蟲,可有效減少田間卵量,減輕害蟲發生程度。
人ren工gong摘zhai除chu卵luan塊kuai,將jiang幼you蟲chong消xiao滅mie在zai分fen散san為wei害hai前qian。夜ye蛾e類lei害hai蟲chong產chan卵luan較jiao為wei集ji中zhong,可ke形xing成cheng較jiao大da卵luan塊kuai,因yin此ci在zai成cheng蟲chong產chan卵luan期qi,菜cai農nong可ke在zai田tian間jian人ren工gong摘zhai除chu卵luan塊kuai,集ji中zhong銷xiao毀hui。另ling外wai,多duo種zhong夜ye蛾e類lei幼you蟲chong的de初chu孵fu幼you蟲chong具ju有you聚ju集ji為wei害hai的de特te性xing,利li用yong這zhe段duan時shi間jian人ren工gong措cuo施shi防fang治zhi幼you蟲chong,效xiao果guo不bu錯cuo。對dui於yu耐nai藥yao性xing較jiao強qiang的de老lao熟shu幼you蟲chong,也ye可ke采cai用yong個ge人ren捕bu捉zhuo的de方fang法fa防fang控kong。
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