The results show that Neocheting eichhorniae endangers the eichhornia crassipes only, do not endanger any other native plant; neocheting eichhorniae breeds 2-3 generations per year in Kunming.

• 安全性测定结果发现:在供试的具有代表性的24个科,46种植物中,水葫芦象甲只危害水葫芦,不危害其他任何的当地植物。