隨著氣溫逐漸升高,桑象蟲、桑毛蟲、桑尺蠖、yecandengsangyuanhaichongjiangluxukaishihuodong,kenshisangyahenenye,zaochengsangyechanliangjizhiliangxiajiang。zaochunzuohaobaitiaozhichonggongzuo,nengyouxiaojiangdiquanniansangyuanchongkoujishu,jianqingxiaqiujizhichongyali,tigaosangyechanlianghezhiliang。
桑園白條治蟲一般在3月份進行。防治過早,部分害蟲還藏匿於洞穴中沒有出來活動,防效不佳。可在晴天早晨或傍晚對樹體及桑園地麵、田tian邊bian圩wei埂geng全quan麵mian噴pen施shi滅mie多duo威wei等deng藥yao劑ji。同tong時shi要yao結jie合he人ren工gong捕bu殺sha,如ru晴qing天tian早zao晨chen捕bu捉zhuo桑sang尺chi蠖huo,刮gua除chu野ye蠶can卵luan塊kuai或huo趁chen野ye蠶can剛gang孵fu化hua聚ju集ji時shi捕bu捉zhuo。對dui有you桑sang虱shi危wei害hai的de桑sang園yuan,要yao在zai早zao春chun空kong閑xian時shi利li用yong桑sang虱shi初chu孵fu期qi若ruo蟲chong密mi集ji於yu樹shu幹gan周zhou圍wei的de習xi性xing,用yong粗cu布bu、絲瓜絡、破麻布、草把等蘸洗衣粉或廢機油進行抹殺。初春桑虱若蟲蟲齡小,蠟質分泌少,噴施殺蟲劑能取得較好防效,一般用40%樂果乳油1000倍液加少量洗衣粉噴霧。
手機版




