How to prevent and control zucchini mosaic disease is as follows:
1. Seeds are soaked in 10% trisodium phosphate solution for 20 minutes, or soaked in warm water at 55 °C for 30 minutes.
Second, the initial stage of the disease can be used 1.5% phytopathogenic emulsion 1000 times solution, or 20% virus A wettable powder 500 times solution, or NS-83 antagonist 100 times solution, or 0.5% anti-toxic agent 1 250-300 times solution , 1000 times potassium permanganate solution, or 20 × 10-6 naphthalene acetic acid, once every 7 to 10 days, even spray 3 to 4 times, the above liquid can be used alternately.
Third, prevention and control of aphids, nematodes. It can be hanged with silver-gray membrane to avoid mites. It can also be used with 2.5% deltamethrin or chlorpyrifos 2000-3000 times solution, 50% anti-Puwei WP 800-1000 times solution, 10% cypermethrin emulsifiable concentrate 2500 times solution. Alternate spray control, even spray 3 to 4 times, 7 to 10 days apart, where conditions can be used to prevent insects.
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