隨(sui)著(zhe)暖(nuan)冬(dong)現(xian)象(xiang)不(bu)斷(duan)出(chu)現(xian),小(xiao)麥(mai)田(tian)麥(mai)蜘(zhi)蛛(zhu)越(yue)冬(dong)基(ji)數(shu)逐(zhu)年(nian)增(zeng)加(jia),加(jia)上(shang)其(qi)蟲(chong)體(ti)較(jiao)小(xiao),易(yi)被(bei)忽(hu)視(shi),逐(zhu)漸(jian)由(you)次(ci)要(yao)害(hai)蟲(chong)上(shang)升(sheng)為(wei)主(zhu)要(yao)害(hai)蟲(chong)。它(ta)以(yi)刺(ci)吸(xi)式(shi)口(kou)器(qi)刺(ci)吸(xi)小(xiao)麥(mai)葉(ye)片(pian)汁(zhi)液(ye),造(zao)成(cheng)受(shou)害(hai)麥(mai)葉(ye)出(chu)現(xian)針(zhen)刺(ci)狀(zhuang)白(bai)斑(ban),嚴(yan)重(zhong)時(shi)整(zheng)張(zhang)葉(ye)片(pian)呈(cheng)灰(hui)白(bai)色(se),逐(zhu)漸(jian)變(bian)黃(huang)、枯萎、死亡,造成減產。對麥蜘蛛蟲量較高的麥田,要及時施藥防治。可在麥蜘蛛若蟎低齡期用1.8%阿維菌素乳油5000~6000倍液,或15%噠蟎靈乳油2000~3000倍液,或40%氧樂果乳油1500倍液噴霧。注意加足水量噴霧,使藥液進入麥苗根部。選晴天中午麥蜘蛛出來活動時施藥效果好。同時,要加強田間管理,及時施肥、灌水、除草,確保田間不幹旱、雜草少、小xiao麥mai長chang勢shi良liang好hao,減jian輕qing麥mai蜘zhi蛛zhu發fa生sheng,增zeng強qiang植zhi株zhu抗kang逆ni能neng力li。灌guan水shui條tiao件jian好hao的de麥mai田tian,可ke以yi在zai麥mai蜘zhi蛛zhu潛qian伏fu期qi灌guan水shui,灌guan水shui時shi在zai入ru水shui口kou攪jiao動dong流liu水shui,讓rang水shui帶dai泥ni漿jiang,同tong時shi撥bo動dong麥mai株zhu使shi麥mai蜘zhi蛛zhu假jia死si落luo水shui,隨sui即ji沾zhan泥ni而er死si。常chang年nian麥mai蜘zhi蛛zhu發fa生sheng較jiao重zhong的de田tian塊kuai,可ke以yi因yin地di製zhi宜yi地di采cai取qu一yi些xie農nong業ye措cuo施shi。早zao春chun中zhong耕geng,能neng殺sha死si大da量liang在zai土tu縫feng中zhong越yue冬dong的de麥mai蜘zhi蛛zhu;麥收後淺耕滅茬,秋收後及早深耕,因地製宜輪作倒茬,可有效消滅越夏卵,減少蟲源。
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