自 7 月末始，三(san)代粘(zhan)蟲在(zai)東北(bei)、華北(bei)和(he)(he)黃淮北(bei)部陸續發生，目前(qian)大(da)部地區已進入發生盛期。截至 8 月 11 日，黑龍(long)江(jiang)、吉(ji)林、遼(liao)寧、內蒙古、河北(bei)、北(bei)京、天津、山西、山東和(he)(he)河南等(deng) 10 個省（區、市(shi)）發生，發生面積(ji)為(wei) 1766 萬畝(mu)。目前(qian)幼蟲以 3 齡以上高(gao)齡為(wei)主，玉米(mi)田(tian)和(he)(he)谷子田(tian)發生較為(wei)普遍(bian)，雜草(cao)多、管理粗放田(tian)塊發生重，其(qi)中(zhong)遼(liao)寧朝陽、內蒙古通遼(liao)、吉(ji)林松原和(he)(he)四平(ping)、河北(bei)廊坊和(he)(he)滄州、天津靜(jing)海、山東威海等(deng)地有局部出現高(gao)密度集(ji)中(zhong)為(wei)害(hai)田(tian)塊。總(zong)體為(wei)害(hai)程度明(ming)顯重于(yu)上年(nian)，部分區域重于(yu) 2013 年(nian)。
一、 東北和華北地區發生較為(wei)普遍
三代粘蟲在(zai)黑龍江、吉(ji)林(lin)、遼寧(ning)、內(nei)蒙古、河(he)北(bei)(bei)(bei)(bei)、北(bei)(bei)(bei)(bei)京、天津、山西、山東和河(he)南(nan)等(deng)(deng)(deng) 10 個(ge)省(sheng)(sheng)（區、市） 36 個(ge)市（盟(meng)）發(fa)(fa)生(sheng)。其中(zhong)，內(nei)蒙古發(fa)(fa)生(sheng)面(mian)(mian)積(ji)(ji)最(zui)大(da)，通(tong)遼和赤(chi)峰兩市發(fa)(fa)生(sheng)約 700 萬(wan)(wan)(wan)畝(mu)；遼寧(ning)省(sheng)(sheng)見蟲范圍(wei)廣，錦州(zhou)、鐵(tie)嶺、阜新、朝(chao)陽(yang)、沈陽(yang)、鞍山、遼陽(yang)等(deng)(deng)(deng)西北(bei)(bei)(bei)(bei)部(bu)(bu)為重(zhong)點發(fa)(fa)生(sheng)地(di)，發(fa)(fa)生(sheng)面(mian)(mian)積(ji)(ji)為 470 萬(wan)(wan)(wan)畝(mu)；吉(ji)林(lin)省(sheng)(sheng)在(zai)松原(yuan)、長(chang)春、四平、白城、吉(ji)林(lin)、通(tong)化(hua)(hua)、公主(zhu)嶺等(deng)(deng)(deng)中(zhong)西部(bu)(bu)發(fa)(fa)生(sheng)，發(fa)(fa)生(sheng)面(mian)(mian)積(ji)(ji)為 102 萬(wan)(wan)(wan)畝(mu)。黑龍江在(zai)大(da)慶、綏化(hua)(hua)和哈爾濱(bin) 3 市 5 個(ge)縣(xian)(xian)(xian)發(fa)(fa)生(sheng)，面(mian)(mian)積(ji)(ji)約 30 萬(wan)(wan)(wan)畝(mu)。河(he)北(bei)(bei)(bei)(bei)省(sheng)(sheng)發(fa)(fa)生(sheng) 130 萬(wan)(wan)(wan)畝(mu)，主(zhu)要在(zai)保定(ding)、滄(cang)州(zhou)、廊坊、唐山、秦(qin)皇島、承(cheng)德等(deng)(deng)(deng)東部(bu)(bu)區域發(fa)(fa)生(sheng)。北(bei)(bei)(bei)(bei)京市平谷(gu)、密云、通(tong)州(zhou)等(deng)(deng)(deng)區（縣(xian)(xian)(xian)）見蟲，發(fa)(fa)生(sheng)面(mian)(mian)積(ji)(ji)為 30 萬(wan)(wan)(wan)畝(mu)。天津市發(fa)(fa)生(sheng) 39 萬(wan)(wan)(wan)畝(mu)，主(zhu)要在(zai)靜海(hai)、北(bei)(bei)(bei)(bei)辰、武清(qing)、寧(ning)河(he)、薊縣(xian)(xian)(xian)發(fa)(fa)生(sheng)。山東省(sheng)(sheng)發(fa)(fa)生(sheng) 186 萬(wan)(wan)(wan)畝(mu)，主(zhu)要發(fa)(fa)生(sheng)在(zai)威海(hai)、煙臺、東營、濱(bin)州(zhou)等(deng)(deng)(deng)半島、中(zhong)部(bu)(bu)和北(bei)(bei)(bei)(bei)部(bu)(bu)地(di)區。河(he)南(nan)省(sheng)(sheng)發(fa)(fa)生(sheng) 83 萬(wan)(wan)(wan)畝(mu)，主(zhu)要發(fa)(fa)生(sheng)在(zai)鄭(zheng)州(zhou)、長(chang)垣、漯(luo)河(he)和三門峽等(deng)(deng)(deng)地(di)。山西省(sheng)(sheng)在(zai)晉城、陽(yang)泉(quan)、呂梁和汾陽(yang)個(ge)別縣(xian)(xian)(xian)發(fa)(fa)生(sheng)，面(mian)(mian)積(ji)(ji) 5 萬(wan)(wan)(wan)畝(mu)。
二、東北和華(hua)北部(bu)分地(di)區蟲口密度(du)高
見蟲(chong)(chong)(chong)(chong)(chong)省(sheng)份中，黑龍江、吉(ji)林(lin)、遼寧、內(nei)蒙古、河(he)北(bei)(bei)、北(bei)(bei)京、天津、山東 8 省(sheng)（區(qu)(qu)、市(shi)）蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)高(gao)(gao)(gao)(gao)(gao)，達(da)(da)防(fang)治(zhi)指(zhi)(zhi)(zhi)標地(di)(di)(di)塊(kuai)(kuai)(kuai)多(duo)，局部地(di)(di)(di)塊(kuai)(kuai)(kuai)蟲(chong)(chong)(chong)(chong)(chong)口(kou)(kou)(kou)密度(du)(du)為(wei)大發生指(zhi)(zhi)(zhi)標的數十倍以(yi)(yi)上(shang)(shang)。如(ru)遼寧省(sheng)達(da)(da)防(fang)治(zhi)指(zhi)(zhi)(zhi)標面積為(wei) 145 萬(wan)畝，朝陽市(shi) 50 萬(wan)畝谷(gu)子(zi)(zi)田(tian)(tian)(tian)(tian)每(mei)(mei)(mei)米(mi)(mi)(mi)壟長蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang) 20-30 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)， 1000 畝玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)超過萬(wan)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以(yi)(yi)上(shang)(shang)。吉(ji)林(lin)省(sheng)長春、四平(ping)(ping)(ping)(ping)(ping)(ping)玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)在百(bai)(bai)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以(yi)(yi)上(shang)(shang)，吉(ji)林(lin)、通(tong)(tong)(tong)化、公主嶺(ling)等市(shi)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)在 20 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)左右；水稻田(tian)(tian)(tian)(tian)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 10 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao) 50 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，農(nong)安(an)、梨樹、長嶺(ling)縣的部分鄉鎮嚴(yan)重(zhong)(zhong)(zhong)玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)塊(kuai)(kuai)(kuai)百(bai)(bai)株(zhu)(zhu)達(da)(da) 500-600 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，谷(gu)子(zi)(zi)地(di)(di)(di)頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)雜(za)草(cao)(cao)上(shang)(shang)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi)為(wei) 150 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。黑龍江谷(gu)子(zi)(zi)田(tian)(tian)(tian)(tian)蟲(chong)(chong)(chong)(chong)(chong)口(kou)(kou)(kou)密度(du)(du)一(yi)(yi)般每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi)有蟲(chong)(chong)(chong)(chong)(chong) 10-20 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，雙城最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)密度(du)(du)地(di)(di)(di)塊(kuai)(kuai)(kuai)達(da)(da) 110 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)雜(za)草(cao)(cao)上(shang)(shang)大部分每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 10 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以(yi)(yi)下，最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao) 17 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。內(nei)蒙古赤峰(feng)市(shi)玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)百(bai)(bai)株(zhu)(zhu)有蟲(chong)(chong)(chong)(chong)(chong) 10-15 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，谷(gu)田(tian)(tian)(tian)(tian)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 10-50 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，嚴(yan)重(zhong)(zhong)(zhong)地(di)(di)(di)塊(kuai)(kuai)(kuai)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi)有蟲(chong)(chong)(chong)(chong)(chong) 60-120 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)；通(tong)(tong)(tong)遼玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)一(yi)(yi)般為(wei) 15-53 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，谷(gu)子(zi)(zi)田(tian)(tian)(tian)(tian)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)每(mei)(mei)(mei)米(mi)(mi)(mi)壟長 15-45 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)；科左中旗平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang) 392 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，科爾沁區(qu)(qu)最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)達(da)(da) 2500 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，個別地(di)(di)(di)塊(kuai)(kuai)(kuai)單株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang) 52 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。河(he)北(bei)(bei)省(sheng)達(da)(da)防(fang)治(zhi)指(zhi)(zhi)(zhi)標面積為(wei) 18 萬(wan)畝，興隆、盧(lu)龍、灤縣、樂亭(ting)、遷安(an)、安(an)次、文安(an)、固安(an)、雄(xiong)縣、滄縣等縣（市(shi)、區(qu)(qu)）出現高(gao)(gao)(gao)(gao)(gao)密度(du)(du)區(qu)(qu)域，如(ru)滄縣玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)一(yi)(yi)般百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang) 30-40 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，嚴(yan)重(zhong)(zhong)(zhong)地(di)(di)(di)塊(kuai)(kuai)(kuai)達(da)(da) 800-1200 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，單株(zhu)(zhu)最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao) 14 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)；盧(lu)龍縣谷(gu)田(tian)(tian)(tian)(tian)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 21 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)達(da)(da) 102 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。北(bei)(bei)京密云(yun)、通(tong)(tong)(tong)州玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun) 4 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 28 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，谷(gu)子(zi)(zi)田(tian)(tian)(tian)(tian)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 6 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)；平(ping)(ping)(ping)(ping)(ping)(ping)谷(gu)區(qu)(qu)玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)達(da)(da) 778 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。天津達(da)(da)到防(fang)治(zhi)指(zhi)(zhi)(zhi)標面積 4 萬(wan)畝，百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang)大于(yu) 100 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)的重(zhong)(zhong)(zhong)發面積 0.8 萬(wan)畝，一(yi)(yi)般地(di)(di)(di)塊(kuai)(kuai)(kuai)蟲(chong)(chong)(chong)(chong)(chong)口(kou)(kou)(kou)密度(du)(du)百(bai)(bai)株(zhu)(zhu) 8-10 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，偏高(gao)(gao)(gao)(gao)(gao)密度(du)(du)地(di)(di)(di)塊(kuai)(kuai)(kuai)百(bai)(bai)株(zhu)(zhu) 40-60 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，點片重(zhong)(zhong)(zhong)發地(di)(di)(di)塊(kuai)(kuai)(kuai)為(wei) 150-300 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，靜(jing)海(hai)縣最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao)達(da)(da) 1000-1500 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。山東省(sheng)威(wei)海(hai)、煙臺玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian) 5-15 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，文登部分草(cao)(cao)荒較重(zhong)(zhong)(zhong)集中危害地(di)(di)(di)塊(kuai)(kuai)(kuai)達(da)(da) 150 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以(yi)(yi)上(shang)(shang)，其他(ta)地(di)(di)(di)區(qu)(qu)在 5 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以(yi)(yi)下。山西、河(he)南蟲(chong)(chong)(chong)(chong)(chong)口(kou)(kou)(kou)密度(du)(du)低，如(ru)河(he)南省(sheng)平(ping)(ping)(ping)(ping)(ping)(ping)均(jun)(jun)百(bai)(bai)株(zhu)(zhu) 1.7 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，山西平(ping)(ping)(ping)(ping)(ping)(ping)定谷(gu)子(zi)(zi)田(tian)(tian)(tian)(tian)每(mei)(mei)(mei)平(ping)(ping)(ping)(ping)(ping)(ping)方(fang)米(mi)(mi)(mi) 2-3 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，最(zui)(zui)(zui)(zui)高(gao)(gao)(gao)(gao)(gao) 10 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，澤州玉(yu)(yu)(yu)米(mi)(mi)(mi)田(tian)(tian)(tian)(tian)百(bai)(bai)株(zhu)(zhu)蟲(chong)(chong)(chong)(chong)(chong)量(liang)(liang) 3 頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。
三、嚴重受害田塊少
今年各(ge)地(di)對三(san)代粘蟲監測防治及時(shi)，因此總體(ti)未造成大面(mian)積(ji)作物受害，但個別撂(liao)荒雜草多(duo)的地(di)塊嚴重受害。如河北保定雄(xiong)縣(xian)雄(xiong)州鎮一鋪東村、龍(long)灣(wan)(wan)鎮大步村、龍(long)灣(wan)(wan)鎮葛(ge)各(ge)莊村約 1200 畝(mu)玉米損失在(zai) 70% 以上；天津北辰區小淀鎮 30 畝(mu)玉米地(di)葉(xie)片被吃光(guang)；山東威海(hai)文登(deng)大水泊(bo)鎮大水泊(bo)村葉(xie)片被吃光(guang)、只剩莖桿。
當前(qian)蟲齡多(duo)為(wei)(wei)(wei)(wei) 3-5 齡，各(ge)地(di)(di)(di)蟲齡不整(zheng)齊，部分地(di)(di)(di)區(qu)仍有(you)低齡幼(you)蟲； 7 月底(di)遼寧彰武等地(di)(di)(di)高(gao)空測報燈下(xia)仍出現(xian)二代(dai)(dai)粘(zhan)蟲蛾峰，近(jin)日(ri)北(bei)(bei)方一(yi)些監測點仍有(you)較高(gao)蛾量(liang)。依(yi)據(ju)歷期(qi)(qi)推算，三代(dai)(dai)粘(zhan)蟲幼(you)蟲為(wei)(wei)(wei)(wei)害(hai)(hai)期(qi)(qi)可持續到 8 月下(xia)旬。氣象部門(men)預報，未來 10 天，華北(bei)(bei)東部、東北(bei)(bei)、黃淮(huai)北(bei)(bei)部等地(di)(di)(di)降水(shui)量(liang)一(yi)般有(you) 10-30 毫米，局地(di)(di)(di)有(you) 50-70 毫米，降水(shui)量(liang)接近(jin)常年(nian)，對(dui)(dui)三代(dai)(dai)粘(zhan)蟲發生為(wei)(wei)(wei)(wei)害(hai)(hai)有(you)利。因此，針對(dui)(dui)三代(dai)(dai)粘(zhan)蟲集中、隱蔽、暴發、遷(qian)移危(wei)害(hai)(hai)的特(te)點，各(ge)地(di)(di)(di)植保(bao)部門(men)要繼續進行大田普查，尤(you)其對(dui)(dui)雜草多(duo)、生育期(qi)(qi)晚(wan)的作物(wu)田塊進行重點調(diao)查，掌握嚴重發生區(qu)域，及(ji)時(shi)發布蟲情動態和防(fang)治適期(qi)(qi)預報，力爭將三代(dai)(dai)粘(zhan)蟲幼(you)蟲為(wei)(wei)(wei)(wei)害(hai)(hai)降到最低，努力保(bao)障(zhang)秋糧豐(feng)收。
（病蟲害測報）
