7月5-6日，省(sheng)植保站召開全省(sheng)2018年秋作物重大病(bing)蟲害發生趨(qu)勢會商(shang)會，來(lai)自各省(sheng)轄市、直管縣及部分(fen)重點(dian)區域站的測報技術人員和(he)相(xiang)關專家對我省(sheng)大豆、紅薯、芝麻主要(yao)病(bing)蟲發生趨(qu)勢進(jin)行了分(fen)析會商(shang)，預(yu)報結果如下：
一、大豆病蟲害
預計大(da)(da)豆(dou)(dou)主要(yao)病(bing)蟲害(hai)總體中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)總面積(ji)(ji)(ji)1700萬(wan)(wan)畝(mu)次左(zuo)右(you)。其(qi)中(zhong)(zhong)(zhong)大(da)(da)豆(dou)(dou)蚜中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)150萬(wan)(wan)畝(mu)左(zuo)右(you)，為害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)；蝸牛中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，周口、商丘(qiu)、開封、永城等地(di)局部偏重發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)150萬(wan)(wan)畝(mu)左(zuo)右(you)，為害(hai)盛(sheng)期(qi)8月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)；大(da)(da)豆(dou)(dou)食心蟲偏輕發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng),三(san)門峽(xia)、鄧州等地(di)中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)100萬(wan)(wan)畝(mu)左(zuo)右(you)，為害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)中(zhong)(zhong)(zhong)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)；大(da)(da)豆(dou)(dou)造橋蟲偏輕發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)150萬(wan)(wan)畝(mu)，為害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)7月(yue)(yue)(yue)下旬(xun)(xun)(xun)至(zhi)8月(yue)(yue)(yue)下旬(xun)(xun)(xun)；豆(dou)(dou)天蛾偏輕發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)100萬(wan)(wan)畝(mu)左(zuo)右(you)，為害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)；斜紋(wen)夜蛾中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)100萬(wan)(wan)畝(mu)左(zuo)右(you)，為害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)；地(di)下害(hai)蟲：中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)150萬(wan)(wan)畝(mu)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)下旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)。大(da)(da)豆(dou)(dou)葉斑病(bing)中(zhong)(zhong)(zhong)度(du)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，周口偏重發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)面積(ji)(ji)(ji)150萬(wan)(wan)畝(mu)左(zuo)右(you)，危害(hai)盛(sheng)期(qi)在(zai)(zai)(zai)8月(yue)(yue)(yue)中(zhong)(zhong)(zhong)旬(xun)(xun)(xun)至(zhi)9月(yue)(yue)(yue)上(shang)(shang)(shang)(shang)旬(xun)(xun)(xun)。
二、紅薯病蟲害
預計(ji)紅薯(shu)主要(yao)病蟲害(hai)總體偏(pian)輕(qing)發生(sheng)(sheng)(sheng)，發生(sheng)(sheng)(sheng)面(mian)(mian)積300萬畝次(ci)左右(you)(you)，其中甘薯(shu)腐爛(lan)莖線蟲病中度(du)發生(sheng)(sheng)(sheng)，發生(sheng)(sheng)(sheng)面(mian)(mian)積50萬畝左右(you)(you)；甘薯(shu)天蛾偏(pian)輕(qing)發生(sheng)(sheng)(sheng)，發生(sheng)(sheng)(sheng)面(mian)(mian)積50萬畝左右(you)(you)；甜菜夜蛾偏(pian)輕(qing)發生(sheng)(sheng)(sheng)，發生(sheng)(sheng)(sheng)面(mian)(mian)積50萬畝左右(you)(you);甘薯(shu)麥蛾偏(pian)輕(qing)發生(sheng)(sheng)(sheng)，面(mian)(mian)積30萬畝。
三、芝麻病蟲害
預計芝麻主要病蟲害總體偏重發生，以病害為主，發生面積200萬畝次左右。其中芝麻疫病偏重發生，發生面積80萬畝左右；芝麻莖點枯病偏重發生，發生面積50萬畝左右；枯萎病中度發生，發生面積30萬畝；芝麻天蛾、芝麻蚜蟲、甜菜夜蛾等害蟲偏輕發生。
