危害癥狀：植(zhi)(zhi)株(zhu)生(sheng)長期間現黃(huang)色(se)花(hua)葉(xie)(xie)或花(hua)葉(xie)(xie)，一(yi)般心葉(xie)(xie)發生(sheng)多(duo)，多(duo)表現為輕型花(hua)葉(xie)(xie)，有(you)時(shi)心葉(xie)(xie)現皺(zhou)縮(suo)花(hua)葉(xie)(xie)，向后翻卷，嚴重的(de)植(zhi)(zhi)株(zhu)矮化。

防治措施：

1.種(zhong)(zhong)(zhong)子(zi)(zi)(zi)消毒。在播種(zhong)(zhong)(zhong)時(shi)(shi)(shi)用殺菌劑浸泡種(zhong)(zhong)(zhong)子(zi)(zi)(zi)，殺滅潛(qian)伏在香菜(cai)(cai)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)內部的病(bing)毒，撈起(qi)洗凈，瀝干水分后(hou)再播種(zhong)(zhong)(zhong)。香菜(cai)(cai)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)發(fa)芽后(hou)形成幼(you)苗時(shi)(shi)(shi)及(ji)時(shi)(shi)(shi)新高脂膜形成一層高分子(zi)(zi)(zi)膜，就(jiu)不容易感染花(hua)葉(xie)病(bing)毒病(bing)。

2.及時(shi)防(fang)治(zhi)蚜蟲(chong)。香(xiang)菜幼(you)苗開(kai)(kai)始(shi)展(zhan)葉后，必(bi)須每7～10天葉面噴(pen)(pen)灑(sa)一次針對蚜蟲(chong)的殺蟲(chong)劑，連(lian)續噴(pen)(pen)灑(sa)3～5次，均勻(yun)噴(pen)(pen)濕所(suo)有(you)的葉片(pian)，以(yi)開(kai)(kai)始(shi)有(you)水珠往下滴為宜，消滅(mie)吸附在香(xiang)菜葉片(pian)上為害的蚜蟲(chong)，噴(pen)(pen)藥時(shi)配合新高脂膜一起(qi)使用，防(fang)止(zhi)蚜蟲(chong)傳播病(bing)毒，就(jiu)能減(jian)輕香(xiang)菜感染病(bing)毒病(bing)。