5 月下(xia)旬以(yi)(yi)來，據(ju)各區(qu)縣(xian)(xian)(xian)植(zhi)保(bao)(bao)站監(jian)測(ce)(ce)(ce)， 2015 年越冬代棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)成(cheng)蟲(chong)(chong)(chong)(chong)(chong)量累計誘蛾為(wei)(wei) 58.7 頭 / 燈，是 2014 年的(de)(de)(de) 6.7 倍。同時(shi)，一(yi)代棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)幼蟲(chong)(chong)(chong)(chong)(chong)也已(yi)對小(xiao)麥(mai)、玉米(mi)等(deng)農作(zuo)(zuo)物造(zao)成(cheng)不同程度(du)(du)危(wei)害(hai)(hai)。其中，靜海縣(xian)(xian)(xian)植(zhi)保(bao)(bao)站在王口(kou)鎮監(jian)測(ce)(ce)(ce)到一(yi)代棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)為(wei)(wei)害(hai)(hai)小(xiao)麥(mai)穗部的(de)(de)(de)情(qing)況，蟲(chong)(chong)(chong)(chong)(chong)害(hai)(hai)發(fa)(fa)生(sheng)地(di)平(ping)均蟲(chong)(chong)(chong)(chong)(chong)口(kou)密度(du)(du)為(wei)(wei) 2-3 頭 / ㎡，蟲(chong)(chong)(chong)(chong)(chong)齡(ling)(ling)多超(chao)過 3 齡(ling)(ling)；寧(ning)河(he)縣(xian)(xian)(xian)植(zhi)保(bao)(bao)站于 5 月下(xia)旬初監(jian)測(ce)(ce)(ce)到一(yi)代棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)為(wei)(wei)害(hai)(hai)各個(ge)生(sheng)育期春玉米(mi)的(de)(de)(de)情(qing)況。監(jian)測(ce)(ce)(ce)點潘莊鎮早播春玉米(mi)地(di)被(bei)(bei)害(hai)(hai)株(zhu)(zhu)率高達(da) 10-15% ，蟲(chong)(chong)(chong)(chong)(chong)口(kou)密度(du)(du)為(wei)(wei) 10 頭 / 百株(zhu)(zhu)，調查日蟲(chong)(chong)(chong)(chong)(chong)齡(ling)(ling)超(chao)過 2 齡(ling)(ling)，主要(yao)(yao)為(wei)(wei)害(hai)(hai)玉米(mi)葉片和心葉。另外(wai)，武(wu)清(qing)、薊縣(xian)(xian)(xian)、寶坻等(deng)主要(yao)(yao)農作(zuo)(zuo)物種植(zhi)區(qu)縣(xian)(xian)(xian)頁調查到一(yi)代棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)幼蟲(chong)(chong)(chong)(chong)(chong)的(de)(de)(de)為(wei)(wei)害(hai)(hai)作(zuo)(zuo)物的(de)(de)(de)情(qing)況。目前(qian)，以(yi)(yi)上區(qu)縣(xian)(xian)(xian)均已(yi)開展了(le)有針對性(xing)的(de)(de)(de)防(fang)治(zhi)指導工(gong)作(zuo)(zuo)，組織農戶對已(yi)達(da)防(fang)治(zhi)指標的(de)(de)(de)作(zuo)(zuo)物地(di)塊(kuai)進行防(fang)治(zhi)。鑒于棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)食性(xing)雜、危(wei)害(hai)(hai)性(xing)大、蟲(chong)(chong)(chong)(chong)(chong)齡(ling)(ling)不整的(de)(de)(de)特(te)點，全市(shi)小(xiao)麥(mai)、玉米(mi)、其它蔬菜、水果等(deng)各類農作(zuo)(zuo)物近(jin)期都存在被(bei)(bei)棉(mian)(mian)鈴(ling)(ling)蟲(chong)(chong)(chong)(chong)(chong)嚴重為(wei)(wei)害(hai)(hai)的(de)(de)(de)可能(neng)性(xing)。因此，各區(qu)縣(xian)(xian)(xian)植(zhi)保(bao)(bao)站近(jin)期要(yao)(yao)加大監(jian)測(ce)(ce)(ce)力度(du)(du)，及時(shi)開展田間調查，如(ru)發(fa)(fa)現蟲(chong)(chong)(chong)(chong)(chong)害(hai)(hai)發(fa)(fa)生(sheng)高密度(du)(du)地(di)塊(kuai)及時(shi)上報市(shi)站，并(bing)第一(yi)時(shi)間做(zuo)好防(fang)治(zhi)指導工(gong)作(zuo)(zuo)，最大限度(du)(du)降低蟲(chong)(chong)(chong)(chong)(chong)害(hai)(hai)對作(zuo)(zuo)物產量造(zao)成(cheng)的(de)(de)(de)影響(xiang)。同時(shi)，據(ju)各單(dan)位也要(yao)(yao)著手(shou)準(zhun)備(bei)，做(zuo)好一(yi)代成(cheng)蟲(chong)(chong)(chong)(chong)(chong)的(de)(de)(de)監(jian)測(ce)(ce)(ce)工(gong)作(zuo)(zuo)。
（ 天津市植保植檢站(zhan) ）
