[Investigation on occurrence of lycium pests and their natural enemies].

OBJECTIVE: To Provide the scientific basis for controlling the lycium pests. METHOD: The kinds and number of pests and their natural enemies were investigated at regular intervals and on the fixed trees. RESULT: There are 13 kinds of lycium pests and 17 kinds of natural enemies, the occurrence of which are closely related. CONCLUSION: Natural enemies can control aphids and psyllidae effectively, but ten-spotted lema and Epithrix sp. must be controlled by pesticides.