Persistence of Entomopathogenic Nematode, Steinernema carpocapsae GSN1 Strain on Vegetable Leaf in Greenhouses

摘要: Persistence of the entomopathogenic nematode Steinernema carpocapsae GSN1 strain applied by foliar sprays was evaluated on leaves Chinese cabbage, and kale in greenhouses. Kinds vegetables, seedling age, application time influenced persistence S. GSN1. More survived cabbage leaf than or persisted longer older younger leaves. did not survive for 6 hour at applications 08:00 14:00 while 12 18:00 hour. The survial rate sprayed 200,000 400,000 infective juveniles (Ijs) 3.5 times higher 100,000 Ijs. For suitable water volume 150 mL per m2, which better survival nematodes 300 600 m2.