In the treatment of seeds should be soaked in fresh water for 2 to 3 hours, and then soaked with 10% sodium phosphate solution for 20 minutes, washed with water after germination sowing. Rotate with non-solanum crops for more than 3 years. In the process of planting, it is necessary to prevent decay in time. The agent can be sprayed with 70% imidacloprid water dispersible granules 30,000 to 40000 times or 25% thiamethoxam water dispersible granules 8000 times or 0.36% matrine water 800 times. Or in the early stage of viral disease, 2% Ningnanmycin 250 times solution or 20% Dow copper acetate wettable powder 600 times solution can be sprayed for 7 days.
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