由于近期(qi)全(quan)疆(jiang)(jiang)大部地區(qu)氣溫適宜(yi)棉(mian)蚜發生危害，今年棉(mian)蚜發生早，遷入棉(mian)田(tian)(tian)始見期(qi)比去年整體提前半(ban)個月(yue)左右(you)，目前全(quan)疆(jiang)(jiang)棉(mian)田(tian)(tian)已形成中心(xin)株，南疆(jiang)(jiang)和東(dong)疆(jiang)(jiang)大部分(fen)棉(mian)田(tian)(tian)已點(dian)片(pian)發生危害，部分(fen)地區(qu)棉(mian)田(tian)(tian)開(kai)始卷葉，田(tian)(tian)間(jian)有蚜株率較去年同期(qi)偏高(gao)，南疆(jiang)(jiang)、東(dong)疆(jiang)(jiang)部分(fen)地區(qu)已達到了100%，目前正值(zhi)擴散蔓(man)延高(gao)峰(feng)期(qi)，呈(cheng)現出偏重(zhong)發生態勢。北疆(jiang)(jiang)棉(mian)田(tian)(tian)棉(mian)蚜零星(xing)發生階段，即(ji)將進入遷飛高(gao)峰(feng)期(qi)。
一(yi)、棉蚜(ya)發生情況
巴州(zhou)全州(zhou)平(ping)(ping)(ping)均(jun)(jun)(jun)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)41%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)1860頭(tou)(tou)(tou)。其(qi)中庫(ku)爾(er)勒市(shi)棉(mian)田平(ping)(ping)(ping)均(jun)(jun)(jun)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)100%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)5200頭(tou)(tou)(tou)，有(you)(you)(you)(you)(you)(you)翅(chi)蚜(ya)(ya)(ya)(ya)(ya)(ya)占28.3%，卷葉株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)36.8%，局部棉(mian)田中度偏重發生；輪臺縣6月(yue)4日(ri)(ri)(ri)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)94%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)11100頭(tou)(tou)(tou)，有(you)(you)(you)(you)(you)(you)翅(chi)蚜(ya)(ya)(ya)(ya)(ya)(ya)占247%，卷葉株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)12%。阿(a)克蘇(su)地區(qu)阿(a)克蘇(su)市(shi)6月(yue)4日(ri)(ri)(ri)棉(mian)田有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)30.74%，比去年同(tong)期(qi)高18.94%，卷葉率(lv)(lv)(lv)(lv)(lv)2.86%,比去年同(tong)期(qi)高0.76%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)867.6頭(tou)(tou)(tou)。吐魯番地區(qu)5月(yue)30日(ri)(ri)(ri)平(ping)(ping)(ping)均(jun)(jun)(jun)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)21.7%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)327頭(tou)(tou)(tou)，棉(mian)田最高有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)100%，卷葉株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)52%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)50474頭(tou)(tou)(tou)，其(qi)中有(you)(you)(you)(you)(you)(you)翅(chi)成蚜(ya)(ya)(ya)(ya)(ya)(ya)占 5.5%，有(you)(you)(you)(you)(you)(you)翅(chi)若蚜(ya)(ya)(ya)(ya)(ya)(ya)占 13.5%，無翅(chi)蚜(ya)(ya)(ya)(ya)(ya)(ya)占81%。哈密(mi)地區(qu)5月(yue)31日(ri)(ri)(ri)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)36%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)26267頭(tou)(tou)(tou)，卷葉株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)25%，最高達(da)60%。昌吉州(zhou)瑪納斯縣5月(yue)21日(ri)(ri)(ri)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)55%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)211頭(tou)(tou)(tou)。博(bo)州(zhou)6月(yue)2日(ri)(ri)(ri)有(you)(you)(you)(you)(you)(you)棉(mian)蚜(ya)(ya)(ya)(ya)(ya)(ya)田率(lv)(lv)(lv)(lv)(lv)37%，有(you)(you)(you)(you)(you)(you)棉(mian)蚜(ya)(ya)(ya)(ya)(ya)(ya)點率(lv)(lv)(lv)(lv)(lv)32.6%，有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)點有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)12.3%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)105頭(tou)(tou)(tou)，單(dan)株(zhu)(zhu)(zhu)(zhu)(zhu)最高蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)128頭(tou)(tou)(tou)。塔城地區(qu)烏蘇(su)市(shi)5月(yue)31日(ri)(ri)(ri)至6月(yue)1日(ri)(ri)(ri)有(you)(you)(you)(you)(you)(you)蚜(ya)(ya)(ya)(ya)(ya)(ya)株(zhu)(zhu)(zhu)(zhu)(zhu)率(lv)(lv)(lv)(lv)(lv)7.6%，平(ping)(ping)(ping)均(jun)(jun)(jun)百(bai)(bai)(bai)株(zhu)(zhu)(zhu)(zhu)(zhu)蚜(ya)(ya)(ya)(ya)(ya)(ya)量(liang)(liang)(liang)687頭(tou)(tou)(tou)。
二(er)、后期趨(qu)勢分析(xi)
北疆(jiang)(jiang)近期(qi)冷涼多雨天(tian)氣不利于棉(mian)蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)，但時晴時雨的氣候(hou)有(you)利于伏(fu)蚜(ya)(ya)(ya)(ya)(ya)迅速增殖，苗蚜(ya)(ya)(ya)(ya)(ya)預(yu)計中(zhong)度發(fa)(fa)生(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)高峰(feng)(feng)期(qi)6月中(zhong)下旬(xun)，伏(fu)蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)高峰(feng)(feng)期(qi)7月中(zhong)旬(xun)。東、南疆(jiang)(jiang)干旱(han)風(feng)沙天(tian)氣有(you)利于棉(mian)蚜(ya)(ya)(ya)(ya)(ya)擴散蔓(man)延(yan)，苗蚜(ya)(ya)(ya)(ya)(ya)預(yu)計偏重發(fa)(fa)生(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)高峰(feng)(feng)期(qi)6月上中(zhong)旬(xun)，伏(fu)蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)高峰(feng)(feng)期(qi)7月上旬(xun)。預(yu)計全疆(jiang)(jiang)苗蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)面積155萬畝，伏(fu)蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)面積280 萬畝，秋蚜(ya)(ya)(ya)(ya)(ya)發(fa)(fa)生(sheng)(sheng)(sheng)面積50萬畝。
目前棉蚜發生量大、繁殖速度非常快，希望各級植保部門一定要抓緊做好棉蚜監測工作，全面掌握當前發生趨勢，及時向有關領導匯報當前病蟲發生形勢，組織防治工作，抓好監控和統防統治工作，將棉蚜控制在早期點片發生階段。
