在压萍不彻底田块,水稻插秧后,剩下少部分红萍,可被萍螟(包括:褐萍螟和黑萍螟)为害。由于虫多,红萍少,当红萍被吃光时(或将被吃光时),迫使幼虫转主,爬上水稻,缀叶化蛹。虽然,幼虫不吃水稻,但由于缀叶做苞,常可严重影响水稻叶片生长。故应注意防治。 In the Ping Ping is not complete plots, rice transplanting, leaving a small part of the red duckweed, can be Ping borer (including: Dipterocarpaceae and black duck borer) damage. As insects, red duckweed, red duckweed was eaten (or will be eaten), forcing larvae to transfer to the main, climbed rice, decorated with leaf pupation. Although the larvae do not eat rice, budding leaves can often seriously affect the growth of rice leaves. It should be noted that prevention and treatment.