幼虫聚集在韭菜地下部鳞茎和茎基部,初孵幼虫先为害韭菜叶鞘基部和鳞茎上端。春秋两季主要为害韭菜幼茎,引起腐烂,使韭菜枯黄死亡。夏季幼虫向下蛀入鳞茎,严重时鳞茎腐烂,致使墩苗死亡。 |
桂公网安备 45010702000689号|桂ICP备14001967号-1|耕种帮手机版|免责声明:本站内容由网友供稿,如有侵权请联系删除!|种地网
GMT+8, 2024-3-29 22:41 , Processed in 0.034814 second(s), 21 queries .
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.