Pepper powdery mildew occurs mainly in greenhouse cultivation. The back of the diseased plant leaves is densely stained with white mildew, which spreads throughout the entire leaf. When the disease is severe, the diseased leaves fall off and become the source of re-infection. The temperature is low and the continuous rainy weather is more frequent. Applicable protective agents are: 50% sulfur suspension 500 times, 40% 600 times liquid of Kokonin suspension, 75% chlorothalonil 600 times, 80% of Shan Desheng WP 600 times, 80% of M -45 Wettable powder 600 times liquid; Applicable for systemic fungicide: 50% carbendazim wettable powder 600-800 times liquid, 40% Fuxing emulsion 6,000-8000 times liquid, 10% high water dispersible granules 2000～3000 times liquid, 20% formic nitrile wettable powder 1000～1200 times, 25% methicone oleoresin 5000～6000 times, 50% thiophanate wettable powder 1000 times, 15% triadimefon 1000～ 1200 times liquid, 62% cents wettable powder 800 times liquid and so on.
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