近(jin)期，隨著稻(dao)飛虱(shi)(shi)不斷(duan)遷入，桂北及桂西等局部(bu)稻(dao)區燈誘蟲量(liang)與田間蟲口(kou)密度突(tu)增，部(bu)分(fen)地區田間蟲量(liang)超3000頭(tou)(tou)/百叢，個別田塊百叢蟲量(liang)過萬頭(tou)(tou)，各(ge)地需緊抓(zhua)監測防(fang)控工作，壓控第三代稻(dao)飛虱(shi)(shi)發(fa)生基數(shu)。
燈(deng)(deng)誘(you)情(qing)況：5月(yue)16~20日(ri)(ri)，多地燈(deng)(deng)誘(you)蟲量(liang)突增，部分縣(xian)(xian)燈(deng)(deng)誘(you)蟲量(liang)過萬頭(tou)(tou)(tou)：隆(long)林縣(xian)(xian)誘(you)獲稻飛虱(shi)139517頭(tou)(tou)(tou)，巴(ba)馬縣(xian)(xian)40054頭(tou)(tou)(tou)，田陽縣(xian)(xian)40021頭(tou)(tou)(tou)，天峨縣(xian)(xian)35488頭(tou)(tou)(tou)。統計(ji)全區52個(ge)縣(xian)(xian)（市、區）16~20日(ri)(ri)燈(deng)(deng)誘(you)蟲量(liang)325102頭(tou)(tou)(tou)，是(shi)歷(li)年平(ping)均(jun)值的2.77倍(bei)。隆(long)林縣(xian)(xian)持(chi)續監測到稻飛虱(shi)燈(deng)(deng)誘(you)蟲峰(feng)，21~25日(ri)(ri)燈(deng)(deng)誘(you)蟲量(liang)167360頭(tou)(tou)(tou)，平(ping)均(jun)單(dan)(dan)燈(deng)(deng)單(dan)(dan)晚(wan)誘(you)蟲33472頭(tou)(tou)(tou)。
田(tian)間情況(kuang)：桂(gui)北、右江(jiang)(jiang)(jiang)河谷(gu)、桂(gui)東(dong)等(deng)稻區(qu)局(ju)部(bu)發生(sheng)(sheng)偏重(zhong)(zhong)，局(ju)部(bu)大(da)發生(sheng)(sheng)。全州縣(xian)(xian)(xian)田(tian)間蟲(chong)口密(mi)度(du)(du)一(yi)般(ban)7601.7頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，偏重(zhong)(zhong)至(zhi)大(da)發生(sheng)(sheng)面(mian)積達6萬畝，個(ge)別(bie)(bie)田(tian)塊蟲(chong)口密(mi)度(du)(du)達12940頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)；靈川(chuan)縣(xian)(xian)(xian)百(bai)(bai)叢(cong)(cong)(cong)(cong)蟲(chong)量(liang)(liang)一(yi)般(ban)2000~3500頭(tou)(tou)，高(gao)的(de)6000~8000頭(tou)(tou)，個(ge)別(bie)(bie)田(tian)塊高(gao)達13100頭(tou)(tou)；荔浦縣(xian)(xian)(xian)局(ju)部(bu)蟲(chong)口密(mi)度(du)(du)5000頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)；永福(fu)縣(xian)(xian)(xian)局(ju)部(bu)蟲(chong)口密(mi)度(du)(du)2396頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，高(gao)的(de)7880頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)；百(bai)(bai)色、河池市百(bai)(bai)叢(cong)(cong)(cong)(cong)蟲(chong)量(liang)(liang)一(yi)般(ban)700~2199頭(tou)(tou)，高(gao)的(de)2500~3420頭(tou)(tou)，其中隆林(lin)、環江(jiang)(jiang)(jiang)、右江(jiang)(jiang)(jiang)、田(tian)陽(yang)、德保等(deng)局(ju)部(bu)蟲(chong)量(liang)(liang)超(chao)3000頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，環江(jiang)(jiang)(jiang)縣(xian)(xian)(xian)局(ju)部(bu)田(tian)塊6270頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，田(tian)林(lin)縣(xian)(xian)(xian)局(ju)部(bu)高(gao)的(de)6750頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，田(tian)陽(yang)縣(xian)(xian)(xian)觀測區(qu)（不(bu)防治）高(gao)達38060頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)；蒼梧、八步、桂(gui)平、興業等(deng)縣(xian)(xian)(xian)（市、區(qu)）蟲(chong)量(liang)(liang)一(yi)般(ban)1000~1230頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)，局(ju)部(bu)2960~3500頭(tou)(tou)/百(bai)(bai)叢(cong)(cong)(cong)(cong)。
隨著(zhu)稻飛虱不斷從(cong)外(wai)(wai)地(di)(di)遷入(ru)和(he)本地(di)(di)增(zeng)殖(zhi)，局部(bu)田間蟲(chong)量仍會繼(ji)續(xu)增(zeng)加。各地(di)(di)需繼(ji)續(xu)加強蟲(chong)情(qing)監(jian)測，加大普查工作力(li)度(du)，時刻掌握發生(sheng)動態(tai)，堅持“天(tian)天(tian)調(diao)查、五天(tian)一(yi)報(bao)，重大病蟲(chong)災害實時上報(bao)”的(de)工作制度(du)，按(an)照全區早稻中(zhong)后期防控技術現(xian)場培(pei)訓(xun)班（會）的(de)要求(qiu)，切實做(zuo)好(hao)防治(zhi)指(zhi)導(dao)工作，全力(li)壓控第三代發生(sheng)基數。另外(wai)(wai)，隨著(zhu)全區進(jin)入(ru)主汛期，洪澇(lao)過(guo)后，病蟲(chong)變(bian)化將會出(chu)現(xian)新(xin)的(de)動態(tai)格局，各地(di)(di)務必做(zuo)好(hao)病蟲(chong)監(jian)測、情(qing)報(bao)發布和(he)防控指(zhi)導(dao)工作。
廣西壯族自治區農作物病蟲測報站
