玉米象屬鞘翅目象蟲科,成蟲食害禾穀類種子,以小麥、玉米、糙cao米mi及ji高gao粱liang受shou害hai最zui重zhong。幼you蟲chong隻zhi在zai禾he穀gu類lei種zhong子zi內nei危wei害hai,是shi一yi種zhong最zui主zhu要yao的de初chu期qi性xing害hai蟲chong。貯zhu糧liang被bei玉yu米mi象xiang咬yao食shi而er造zao成cheng許xu多duo碎sui粒li及ji粉fen屑xie,易yi引yin起qi後hou期qi性xing害hai蟲chong的de發fa生sheng,危wei害hai後hou能neng使shi糧liang食shi水shui分fen增zeng高gao和he發fa熱re。
防治方法:清潔倉庫,堵塞各種縫隙,改善貯糧條件,可減少危害。改進貯藏技術,如在糧堆表麵覆蓋一層6~10limihoudecaomuhui,yongsuliaomohuoniupizhigeli。ruyifashengchonghai,yaoxianbabiaocengliangquchuquchong,shiqiyuwuchongliangfenkai,fangzhixiangshencengkuozhan。biyaoshizaiqiumodongchu,zailiangmianhuoliangduisizhoupushangmadai,yinyouchengchonglaidaixiaqianfu,shoujibingyuyixiaomie。chuntian,zaicangwaisizhoupenyitiaomalaliulinyaodai,fangzhizaicangwaiyuedongdechengchongfanhuicangnei。lingwai,mei40公斤糧食用糧蟲淨4~5克觸殺和熏蒸,防效較好。
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