油菜移栽後的主要蟲害有：菜蚜指危害油菜的蚜蟲，常見的有蘿卜蚜、甘gan藍lan蚜ya和he桃tao赤chi蚜ya等deng。它ta的de危wei害hai是shi吸xi取qu油you菜cai汁zhi液ye，使shi受shou害hai葉ye片pian向xiang下xia卷juan縮suo，植zhi株zhu變bian黃huang矮ai，生sheng長chang不bu良liang，嚴yan重zhong時shi可ke導dao致zhi萎wei蔫nian枯ku死si。菜cai青qing蟲chong指zhi危wei害hai油you菜cai的de菜cai粉fen蝶die幼you蟲chong，初chu齡ling幼you蟲chong在zai葉ye背bei取qu食shi，大da齡ling幼you蟲chong在zai葉ye麵mian取qu食shi，將jiang油you菜cai葉ye麵mian咬yao食shi成cheng孔kong洞dong，嚴yan重zhong時shi隻zhi剩sheng下xia葉ye柄bing和he葉ye脈mai。菜cai蛆qu指zhi危wei害hai油you菜cai的de小xiao菜cai蛾e幼you蟲chong，幼you蟲chong常chang從cong心xin葉ye背bei麵mian咬yao破po表biao皮pi蛀zhu入ru葉ye組zu織zhi或huo莖jing內nei，常chang造zao成cheng無wu心xin株zhu。　黑(hei)殼(ke)蟲(chong)指(zhi)危(wei)害(hai)油(you)菜(cai)的(de)猿(yuan)葉(ye)蟲(chong)
，幼(you)蟲(chong)多(duo)集(ji)中(zhong)於(yu)葉(ye)背(bei)和(he)心(xin)葉(ye)危(wei)害(hai)，將(jiang)葉(ye)吃(chi)成(cheng)孔(kong)洞(dong)和(he)缺(que)刻(ke)，嚴(yan)重(zhong)時(shi)隻(zhi)剩(sheng)下(xia)葉(ye)柄(bing)和(he)葉(ye)脈(mai)。為(wei)了(le)保(bao)證(zheng)油(you)菜(cai)健(jian)康(kang)生(sheng)長(chang)，應(ying)采(cai)取(qu)以(yi)下(xia)措(cuo)施(shi)：