據有關測報區域(yu)站調(diao)查,由于近期降雨(yu)較(jiao)多,田(tian)間濕度大(da),棉花(hua)黃萎病(bing)、鈴病(bing)等發(fa)展迅速,局部發(fa)生較(jiao)重。
棉(mian)(mian)(mian)花(hua)(hua)黃(huang)萎(wei)病(bing)(bing)(bing)(bing):主產棉(mian)(mian)(mian)區棉(mian)(mian)(mian)花(hua)(hua)黃(huang)萎(wei)病(bing)(bing)(bing)(bing)進一(yi)步(bu)發(fa)(fa)(fa)(fa)(fa)展蔓延,黑龍港流域的(de)老(lao)棉(mian)(mian)(mian)區局(ju)部地(di)(di)塊(kuai)發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)較(jiao)重(zhong)。臨西縣(xian)調查(cha),棉(mian)(mian)(mian)花(hua)(hua)黃(huang)萎(wei)病(bing)(bing)(bing)(bing)發(fa)(fa)(fa)(fa)(fa)展迅速,病(bing)(bing)(bing)(bing)田(tian)率(lv)(lv)80%以上,一(yi)般病(bing)(bing)(bing)(bing)株率(lv)(lv)3-5%,嚴(yan)重(zhong)地(di)(di)塊(kuai)達100%。故(gu)(gu)城縣(xian)調查(cha),棉(mian)(mian)(mian)花(hua)(hua)黃(huang)萎(wei)病(bing)(bing)(bing)(bing)發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)普遍(bian)(bian)且發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)程度嚴(yan)重(zhong),病(bing)(bing)(bing)(bing)田(tian)率(lv)(lv)100%,病(bing)(bing)(bing)(bing)株率(lv)(lv)20-50%。棉(mian)(mian)(mian)花(hua)(hua)鈴病(bing)(bing)(bing)(bing):發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)比(bi)較(jiao)普遍(bian)(bian),局(ju)部地(di)(di)塊(kuai)發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)較(jiao)重(zhong)。阜城縣(xian)8月(yue)20日調查(cha)部分(fen)棉(mian)(mian)(mian)田(tian)出(chu)現黑鈴和爛鈴,一(yi)般百(bai)株120-160個,最高(gao)達266個。館陶縣(xian)8月(yue)20日調查(cha),一(yi)般病(bing)(bing)(bing)(bing)株率(lv)(lv)15-30%,嚴(yan)重(zhong)地(di)(di)塊(kuai)達50%以上。棉(mian)(mian)(mian)花(hua)(hua)紅(hong)葉(xie)(xie)莖(jing)枯病(bing)(bing)(bing)(bing):棉(mian)(mian)(mian)花(hua)(hua)紅(hong)葉(xie)(xie)莖(jing)枯病(bing)(bing)(bing)(bing)開始(shi)盛發(fa)(fa)(fa)(fa)(fa),故(gu)(gu)城縣(xian)8月(yue)20日調查(cha),棉(mian)(mian)(mian)花(hua)(hua)紅(hong)葉(xie)(xie)莖(jing)枯病(bing)(bing)(bing)(bing)在部分(fen)棉(mian)(mian)(mian)田(tian)發(fa)(fa)(fa)(fa)(fa)生(sheng)(sheng)較(jiao)重(zhong),一(yi)般病(bing)(bing)(bing)(bing)株率(lv)(lv)10-30%,最高(gao)地(di)(di)塊(kuai)病(bing)(bing)(bing)(bing)株率(lv)(lv)80%。邢臺市棉(mian)(mian)(mian)花(hua)(hua)主產縣(xian)調查(cha),一(yi)般病(bing)(bing)(bing)(bing)株率(lv)(lv)10%-20%,個別重(zhong)地(di)(di)塊(kuai)達50%(臨西縣(xian))。
近(jin)期我省大部(bu)分地(di)區降水頻繁,田間濕度大,早晚氣(qi)溫偏低,氣(qi)候(hou)條件利于棉花病害(hai)的發(fa)生和流行(xing)。各地(di)務必加(jia)強調查(cha)監(jian)測,及時發(fa)布預報,科學指導農民查(cha)治。