Cucumber seedlings Pythium root rot

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Control methods

1 bed soil disinfection in a nutrient soil per square meter of seedbed area into 50% seed dressing double wettable powder, or 50% carbendazim wettable powder, or 25% metalaxyl WP, or 50% thiram Wet powder, or five-generation mixture (with quintozene, zinc and other mixed amount) 8-10 grams of dose, the pharmaceutical and nutrient soil mix and then add nutrients or nutrition earth.

2 Seed disinfection Sterilization is performed by soaking in warm soup or impregnating seeds with a method of soaking seeds. After soaking, germination and germination should not be too long, so as not to reduce seed germination ability.

3 Chemical control found that the diseased seedlings were immediately removed and sprayed with 25% metalaxyl WP 800 times, or 64% antivirus WP 500 times, or 75% chlorothalonil wettable powder 600 times, or 40%. % of EB aluminum wettable powder 200 times, or 70% of Bai Defu WP 600 times, or 70% of ATI wettable powder 500 times, or 69% of AZM 1000 times, or 72%. 2% Precic 400 times solution, or 70% mancozeb WP 500 times, or 15% hymexazol (soil-disinfectant, soil-dispersed) 1000 times liquid agent, per square meter bed With 2-3 liters with a good liquid, spray every 7-10 days, even spray 2-3 times.

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