Answer: Prevention and control can be achieved by strengthening field management. In the early stage of disease, the biopesticide Jinggangmycin agent was used to dilute and spray once every 7 days. The leaf roller insect was damaged by the larvae, which caused early fruit drop and resulted in production loss. Before the third instar larvae were sprayed with trichlorfon once every other week and sprayed twice; after 3rd instar larvae were sprayed with the systemic insecticidal dimethoate oil every other week. 3 times.
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