受4-6月(yue)持續低(di)溫陰雨寡照天氣的(de)影響(xiang)，今年水(shui)稻(dao)(dao)生(sheng)育(yu)期普遍推(tui)遲15天左(zuo)右，長勢較差，分(fen)蘗減(jian)少(shao)，病(bing)蟲(chong)總體呈偏重發(fa)(fa)生(sheng)態勢。當(dang)前全省大部分(fen)地區水(shui)稻(dao)(dao)正(zheng)處于分(fen)蘗至拔節期，是控制稻(dao)(dao)葉瘟發(fa)(fa)生(sheng)流(liu)行、防治水(shui)稻(dao)(dao)螟蟲(chong)和(he)稻(dao)(dao)飛虱的(de)關鍵時期。截止6月(yue)30日，水(shui)稻(dao)(dao)主(zhu)要(yao)病(bing)蟲(chong)已累計發(fa)(fa)生(sheng)1703.04萬畝次，比去年同(tong)期減(jian)少(shao)54.33%。
1、稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)：近期全(quan)省(sheng)出現了多(duo)次(ci)大范圍、較長時段的降雨過程(cheng)，有(you)利于稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)的流行蔓延(yan)，發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)區域和(he)面(mian)(mian)積(ji)擴展(zhan)迅速(su)。今年(nian)我省(sheng)稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)特點：一是發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)區域廣(guang)。目前(qian)全(quan)省(sheng)已(yi)有(you)20個(ge)市(shi)（州）、83個(ge)縣(xian)(xian)（區）發(fa)生(sheng)稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)，發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)面(mian)(mian)積(ji)79.78萬畝(mu)(mu)，較去年(nian)同期減少28.46萬畝(mu)(mu)，發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)區域涉及(ji)川(chuan)南(nan)、川(chuan)東(dong)、川(chuan)東(dong)北和(he)川(chuan)西等地區。二(er)是發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)品種多(duo)。據不(bu)完全(quan)統(tong)計，目前(qian)在抗(kang)(kang)圃中已(yi)發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)品種近260個(ge)，其(qi)中宜(yi)香、崗(gang)優、D優、Ⅱ優、Q優等系(xi)列均(jun)(jun)不(bu)同程(cheng)度(du)發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)。在營山縣(xian)(xian)進行的生(sheng)產(chan)品種稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)抗(kang)(kang)性(xing)試驗中，226個(ge)參(can)試品種目前(qian)已(yi)全(quan)部發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)，內2優6號和(he)富優1號的病(bing)(bing)(bing)(bing)(bing)(bing)株率(lv)(lv)(lv)均(jun)(jun)達(da)100%，平(ping)(ping)均(jun)(jun)病(bing)(bing)(bing)(bing)(bing)(bing)葉(xie)率(lv)(lv)(lv)分(fen)別為91.2%、62.8%,平(ping)(ping)均(jun)(jun)病(bing)(bing)(bing)(bing)(bing)(bing)指分(fen)別為64.6和(he)26.4。三是流行蔓延(yan)快，發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)程(cheng)度(du)重(zhong)。6月30日統(tong)計，全(quan)省(sheng)稻(dao)瘟(wen)病(bing)(bing)(bing)(bing)(bing)(bing)發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)面(mian)(mian)積(ji)79.78萬畝(mu)(mu)，比(bi)(bi)20天前(qian)增加(jia)(jia)了57.66萬畝(mu)(mu)。截止6月28日，夾(jia)江(jiang)已(yi)發(fa)生(sheng)500畝(mu)(mu)，比(bi)(bi)去年(nian)同期增加(jia)(jia)470畝(mu)(mu)，其(qi)中0.2畝(mu)(mu)已(yi)化苗(miao)，平(ping)(ping)均(jun)(jun)病(bing)(bing)(bing)(bing)(bing)(bing)株率(lv)(lv)(lv)50.6%，病(bing)(bing)(bing)(bing)(bing)(bing)葉(xie)率(lv)(lv)(lv)35.1%，發(fa)生(sheng)程(cheng)度(du)比(bi)(bi)去年(nian)重(zhong)。通江(jiang)發(fa)生(sheng)面(mian)(mian)積(ji)5萬余畝(mu)(mu)，平(ping)(ping)均(jun)(jun)病(bing)(bing)(bing)(bing)(bing)(bing)田(tian)病(bing)(bing)(bing)(bing)(bing)(bing)株率(lv)(lv)(lv)27.2%，病(bing)(bing)(bing)(bing)(bing)(bing)葉(xie)率(lv)(lv)(lv)11.4%，病(bing)(bing)(bing)(bing)(bing)(bing)指4.3，分(fen)別比(bi)(bi)去年(nian)同期增加(jia)(jia)11.5%、4.1%和(he)1.1。特別是宜(yi)香305和(he)常規糯(nuo)稻(dao)等品種發(fa)病(bing)(bing)(bing)(bing)(bing)(bing)尤為嚴(yan)重(zhong)，病(bing)(bing)(bing)(bing)(bing)(bing)田(tian)病(bing)(bing)(bing)(bing)(bing)(bing)株率(lv)(lv)(lv)20-100%，病(bing)(bing)(bing)(bing)(bing)(bing)葉(xie)率(lv)(lv)(lv)10—100%，急性(xing)病(bing)(bing)(bing)(bing)(bing)(bing)斑達(da)20%以上。
2、水(shui)(shui)(shui)稻(dao)(dao)螟(ming)蟲(chong)(chong)(chong)(chong)：目前水(shui)(shui)(shui)稻(dao)(dao)一(yi)(yi)(yi)代螟(ming)蟲(chong)(chong)(chong)(chong)發生面積為(wei)1609.4萬畝(mu)(mu)(mu)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)同期(qi)減少(shao)(shao)(shao)32.78%。今年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)水(shui)(shui)(shui)稻(dao)(dao)螟(ming)蟲(chong)(chong)(chong)(chong)發生特(te)點(dian)：一(yi)(yi)(yi)是(shi)冬后(hou)螟(ming)蟲(chong)(chong)(chong)(chong)基(ji)數偏低。據(ju)富(fu)順、鄰(lin)水(shui)(shui)(shui)、梓潼、蓬安(an)等(deng)34個(ge)縣(xian)監測：二(er)(er)(er)化(hua)(hua)螟(ming)冬后(hou)畝(mu)(mu)(mu)活蟲(chong)(chong)(chong)(chong)數平(ping)均(jun)1135.5頭(tou)(tou)(tou)/畝(mu)(mu)(mu)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)少(shao)(shao)(shao)437.5頭(tou)(tou)(tou)，比(bi)(bi)(bi)(bi)2008年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)少(shao)(shao)(shao)152.5頭(tou)(tou)(tou)。川(chuan)(chuan)(chuan)南、川(chuan)(chuan)(chuan)西(xi)畝(mu)(mu)(mu)殘蟲(chong)(chong)(chong)(chong)量一(yi)(yi)(yi)般(ban)為(wei)138.6～2927頭(tou)(tou)(tou)，川(chuan)(chuan)(chuan)東(dong)、川(chuan)(chuan)(chuan)北大多在215.8-3443頭(tou)(tou)(tou)。二(er)(er)(er)化(hua)(hua)螟(ming)越冬死亡(wang)率達11.6%，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)高(gao)1.1個(ge)百分(fen)(fen)點(dian)。據(ju)威遠(yuan)、馬邊、儀隴、金堂等(deng)15縣(xian)調查：三(san)化(hua)(hua)螟(ming)冬后(hou)畝(mu)(mu)(mu)殘蟲(chong)(chong)(chong)(chong)量為(wei)14-4336頭(tou)(tou)(tou)，平(ping)均(jun)920頭(tou)(tou)(tou)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)少(shao)(shao)(shao)210頭(tou)(tou)(tou)。川(chuan)(chuan)(chuan)西(xi)部(bu)(bu)分(fen)(fen)縣(xian)三(san)化(hua)(hua)螟(ming)越冬基(ji)數超過二(er)(er)(er)化(hua)(hua)螟(ming)，金堂縣(xian)三(san)化(hua)(hua)螟(ming)、二(er)(er)(er)化(hua)(hua)螟(ming)越冬基(ji)數分(fen)(fen)別(bie)為(wei)4336頭(tou)(tou)(tou)、667頭(tou)(tou)(tou)，分(fen)(fen)別(bie)比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)增4296頭(tou)(tou)(tou)和(he)減少(shao)(shao)(shao)400頭(tou)(tou)(tou)。二(er)(er)(er)是(shi)燈下見(jian)(jian)蛾偏遲(chi)(chi)。全(quan)省大部(bu)(bu)分(fen)(fen)縣(xian)在4月(yue)(yue)中(zhong)下旬見(jian)(jian)蛾，晚(wan)于去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)和(he)常年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)。合(he)江縣(xian)水(shui)(shui)(shui)稻(dao)(dao)二(er)(er)(er)化(hua)(hua)螟(ming)越冬代成蟲(chong)(chong)(chong)(chong)3月(yue)(yue)29日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)上年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)遲(chi)(chi)8天。安(an)縣(xian)4月(yue)(yue)26日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)遲(chi)(chi)3天。納溪4月(yue)(yue)7日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)遲(chi)(chi)7天。劍(jian)閣(ge)4月(yue)(yue)20日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)遲(chi)(chi)7天。彭山4月(yue)(yue)27日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)遲(chi)(chi)8天。射洪二(er)(er)(er)化(hua)(hua)螟(ming)4月(yue)(yue)19日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)推(tui)遲(chi)(chi)17天。梓潼二(er)(er)(er)化(hua)(hua)螟(ming)5月(yue)(yue)4日始(shi)見(jian)(jian)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)推(tui)遲(chi)(chi)20天。三(san)是(shi)一(yi)(yi)(yi)代田(tian)間落卵(luan)量較(jiao)小。據(ju)23個(ge)監測點(dian)調查，一(yi)(yi)(yi)代螟(ming)蟲(chong)(chong)(chong)(chong)高(gao)峰(feng)期(qi)累計卵(luan)塊量平(ping)均(jun)為(wei)432.95塊/畝(mu)(mu)(mu)，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)減少(shao)(shao)(shao)33.89%。其(qi)中(zhong)川(chuan)(chuan)(chuan)東(dong)部(bu)(bu)分(fen)(fen)地區畝(mu)(mu)(mu)卵(luan)量發生水(shui)(shui)(shui)平(ping)高(gao)，廣安(an)畝(mu)(mu)(mu)卵(luan)塊量達3457塊，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)增加48塊。四是(shi)田(tian)間枯(ku)心率同常年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)基(ji)本持平(ping)。據(ju)各監測點(dian)調查，目前田(tian)間平(ping)均(jun)枯(ku)心率為(wei)10.59%，比(bi)(bi)(bi)(bi)去(qu)(qu)(qu)(qu)年(nian)(nian)(nian)(nian)(nian)(nian)(nian)(nian)同期(qi)低1.63%。川(chuan)(chuan)(chuan)西(xi)、川(chuan)(chuan)(chuan)南和(he)攀西(xi)局部(bu)(bu)危害較(jiao)重(zhong)，部(bu)(bu)分(fen)(fen)田(tian)塊已出現枯(ku)心團。富(fu)順、漢源、仁(ren)壽、米(mi)易、仁(ren)和(he)田(tian)間枯(ku)心率在10.4--45%之間。
3、稻飛(fei)(fei)虱(shi)：截(jie)(jie)止6月(yue)30日(ri)(ri)，稻飛(fei)(fei)虱(shi)發(fa)(fa)生(sheng)面積(ji)9.53萬畝(mu)，比(bi)(bi)去(qu)年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)減(jian)(jian)少(shao)(shao)(shao)(shao)(shao)(shao)90.19%，輕于去(qu)年(nian)(nian)(nian)(nian)。今年(nian)(nian)(nian)(nian)稻飛(fei)(fei)虱(shi)發(fa)(fa)生(sheng)特點：一是燈(deng)(deng)下(xia)見(jian)蟲(chong)(chong)(chong)(chong)早(zao)。據監測，川南各(ge)地燈(deng)(deng)下(xia)見(jian)蟲(chong)(chong)(chong)(chong)普遍較上(shang)(shang)年(nian)(nian)(nian)(nian)偏(pian)早(zao)。古(gu)藺4月(yue)2日(ri)(ri)白(bai)背(bei)飛(fei)(fei)虱(shi)燈(deng)(deng)下(xia)見(jian)蟲(chong)(chong)(chong)(chong)，比(bi)(bi)去(qu)年(nian)(nian)(nian)(nian)提早(zao)36天(tian)(tian)。敘永(yong)白(bai)背(bei)飛(fei)(fei)虱(shi)于4月(yue)28日(ri)(ri)燈(deng)(deng)下(xia)始(shi)見(jian)，比(bi)(bi)去(qu)年(nian)(nian)(nian)(nian)早(zao)13天(tian)(tian)。合江(jiang)白(bai)背(bei)飛(fei)(fei)虱(shi)燈(deng)(deng)下(xia)5月(yue)2日(ri)(ri)始(shi)見(jian)，比(bi)(bi)去(qu)年(nian)(nian)(nian)(nian)早(zao)6天(tian)(tian)，比(bi)(bi)08年(nian)(nian)(nian)(nian)早(zao)4天(tian)(tian)；始(shi)見(jian)日(ri)(ri)是歷史記載以來的(de)(de)(de)第二個早(zao)發(fa)(fa)年(nian)(nian)(nian)(nian)份(fen)（最(zui)早(zao)為(wei)98年(nian)(nian)(nian)(nian)4月(yue)25日(ri)(ri)見(jian)）。二是燈(deng)(deng)下(xia)蟲(chong)(chong)(chong)(chong)量(liang)(liang)低。古(gu)藺5月(yue)30日(ri)(ri)至(zhi)6月(yue)20日(ri)(ri)，出現4個遷入(ru)峰次(ci)，白(bai)背(bei)飛(fei)(fei)虱(shi)占(zhan)96.22%。蟲(chong)(chong)(chong)(chong)量(liang)(liang)1191頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，比(bi)(bi)2007年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)的(de)(de)(de)7424頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)少(shao)(shao)(shao)(shao)(shao)(shao)6233頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，少(shao)(shao)(shao)(shao)(shao)(shao)83.96%。敘永(yong)至(zhi)6月(yue)21日(ri)(ri)，白(bai)背(bei)飛(fei)(fei)虱(shi)累(lei)(lei)計(ji)誘蟲(chong)(chong)(chong)(chong)109頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，比(bi)(bi)歷年(nian)(nian)(nian)(nian)均(jun)值(zhi)少(shao)(shao)(shao)(shao)(shao)(shao)83.83%；比(bi)(bi)2009年(nian)(nian)(nian)(nian)少(shao)(shao)(shao)(shao)(shao)(shao)92.18%。合江(jiang)燈(deng)(deng)下(xia)白(bai)背(bei)飛(fei)(fei)虱(shi)至(zhi)6月(yue)中旬(xun)蟲(chong)(chong)(chong)(chong)量(liang)(liang)320頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou),比(bi)(bi)2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)410頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)少(shao)(shao)(shao)(shao)(shao)(shao)90頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。6月(yue)上(shang)(shang)中旬(xun)共(gong)有3個遷入(ru)峰，6月(yue)蟲(chong)(chong)(chong)(chong)量(liang)(liang)比(bi)(bi)2009年(nian)(nian)(nian)(nian)少(shao)(shao)(shao)(shao)(shao)(shao)53頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。納(na)溪截(jie)(jie)至(zhi)6月(yue)19日(ri)(ri)總計(ji)誘蟲(chong)(chong)(chong)(chong)821頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，比(bi)(bi)2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)1317頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)少(shao)(shao)(shao)(shao)(shao)(shao)496頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。興文截(jie)(jie)止6月(yue)20日(ri)(ri)燈(deng)(deng)下(xia)累(lei)(lei)計(ji)蟲(chong)(chong)(chong)(chong)量(liang)(liang)為(wei)2730頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，比(bi)(bi)2009年(nian)(nian)(nian)(nian)減(jian)(jian)少(shao)(shao)(shao)(shao)(shao)(shao)了10143頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。三是田間(jian)蟲(chong)(chong)(chong)(chong)口密度偏(pian)低。截(jie)(jie)至(zhi)6月(yue)20日(ri)(ri)，瀘(lu)州(zhou)全市(shi)稻飛(fei)(fei)虱(shi)發(fa)(fa)生(sheng)面積(ji)1.75萬畝(mu)，分別比(bi)(bi)大發(fa)(fa)生(sheng)的(de)(de)(de)2007、2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)少(shao)(shao)(shao)(shao)(shao)(shao)9.65萬畝(mu)和(he)12.25萬畝(mu)，田間(jian)蟲(chong)(chong)(chong)(chong)量(liang)(liang)和(he)達標面積(ji)均(jun)比(bi)(bi)2007、2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)明顯減(jian)(jian)少(shao)(shao)(shao)(shao)(shao)(shao)。古(gu)藺6月(yue)21日(ri)(ri)調查，百(bai)叢(cong)(cong)蟲(chong)(chong)(chong)(chong)量(liang)(liang)平均(jun)965.5頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)。敘永(yong)田間(jian)百(bai)叢(cong)(cong)蟲(chong)(chong)(chong)(chong)量(liang)(liang)平均(jun)1099頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，其中1000頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)以上(shang)(shang)的(de)(de)(de)16塊(kuai)，占(zhan)51.61%，比(bi)(bi)歷年(nian)(nian)(nian)(nian)均(jun)值(zhi)高(gao)23.07%，比(bi)(bi)2009年(nian)(nian)(nian)(nian)少(shao)(shao)(shao)(shao)(shao)(shao)77.85%。合江(jiang)6月(yue)18日(ri)(ri)田間(jian)調查，百(bai)叢(cong)(cong)蟲(chong)(chong)(chong)(chong)量(liang)(liang)平均(jun)194頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou),比(bi)(bi)2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)1345頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)低6.93倍。納(na)溪田間(jian)蟲(chong)(chong)(chong)(chong)量(liang)(liang)平均(jun)114.62頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)/百(bai)叢(cong)(cong)，以白(bai)背(bei)飛(fei)(fei)虱(shi)若蟲(chong)(chong)(chong)(chong)為(wei)主，比(bi)(bi)2009年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)的(de)(de)(de)800頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)/百(bai)叢(cong)(cong)少(shao)(shao)(shao)(shao)(shao)(shao)685.38頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，少(shao)(shao)(shao)(shao)(shao)(shao)85.67%；比(bi)(bi)2007年(nian)(nian)(nian)(nian)同(tong)(tong)(tong)期(qi)(qi)(qi)的(de)(de)(de)290頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)/百(bai)叢(cong)(cong)少(shao)(shao)(shao)(shao)(shao)(shao)175.38頭(tou)(tou)(tou)(tou)(tou)(tou)(tou)(tou)，少(shao)(shao)(shao)(shao)(shao)(shao)60.48%。
4、其它(ta)病蟲：截至6月30日，水稻(dao)紋枯病發(fa)生近(jin)150萬(wan)畝(mu)，發(fa)生區域主要(yao)集中在川南(nan)稻(dao)區。稻(dao)縱(zong)卷葉螟發(fa)生4.33萬(wan)畝(mu)，發(fa)生區域主要(yao)為川南(nan)、川東北和川西局部地區。
據省農氣中心預報，盛夏7～8月盆地東北部和南部降水正常偏多，有3-5次區域性暴雨過程，對穗頸瘟、稻曲病的發生和水稻“兩遷”害蟲的遷入有利。特別是云南、貴州、廣西等地今年水稻“兩遷”害蟲始見期提前，遷入峰次偏多，燈下蟲量偏高，田間蟲口密度上升快，致使我省稻飛虱和稻縱卷葉螟蟲源壓力大。各地應引起高度重視，密切關注天氣趨勢，加強病蟲監測，及時發布病蟲動態和防治警報，科學指導病蟲防控工作的開展。
來源：四川省植保站
