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(1) Seed selection: The melon varieties suitable for local cultivation, such as pests and diseases, strong resistance, good commercial quality, high quality and high yield should be selected. The quality of the seeds complies with the requirements of GB16715.1 and refuses to use the transgenic winter melon varieties.
(2) Seed treatment: seed disinfection, soaking and germination methods are the same as zucchini and cucumber.
(3) The method of disinfection of seedling bed soil, prevention and control of seedlings and diseases of seedlings is the same as cucumber.
Second, after the planting of pests and diseases prevention and control pests and diseases are preferred to use biological control methods, the use of high toxicity and high residual chemical pesticides is strictly prohibited. Each high-efficiency, low-toxic chemical pesticide can only be used once a season for melons and to ensure a safe interval before harvest.
(1) Fusarium wilt: Roots were irrigated with 5% toxic water-clearing agent 250 times solution, and each plant was treated with 0.25 kg of drug solution, once every 7 days, and evenly for 3 times.
(2) Bacterial wilt: It can be sprayed with water by dust method, smoke method or using 600% chlorhexidine WP 600 times solution or 10% Shigao water dispersion granule 0.75-1.2 kg/ha.
(3) Anthracnose: spray with 5% chlorothalonil dust 15 kg / ha, or use 45% chlorothalonil aerosol 3.75 kg / ha, divided into 75-120 heaps, ignited in the dark fire in the evening, closed shed Overnight; can also be sprayed with 2% Wuyincin water 200 times solution, or 80% anthrax Fumi 600 times solution, once every 7 days, even spray 2-3 times.
(4) Epidemic disease: In the early stage of the disease, use 64% anti-virus WP WP 500 times, 40% Ethyl-phosphorus aluminum 200 times solution alternately, 7 times a day, continuous control 2-3 times.
(5) Viral disease: At the same time as the control of aphids, the initial stage of the disease is sprayed with 5% bacteria toxic clear liquid 250 times, or 20% virus A wettable powder 500 times liquid, once every 7 days, and even sprayed more than 3 times.
(6) Thrips: Control with 10% imidacloprid WP 1500 times, or 1.8% avermectin spray.
Specification for winter melon pollution-free drug technology
First, cultivate no disease and insects
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