The high humidity of brown spot is the cause of the disease. Generally, when the rainfall is high in June and July, it is a high incidence period of this disease. Drug control 70% mancozeb 600 times, 75% chlorothalonil 600 to 800 times, and 50% carbendazim WP 1000 to 1500 times. Ryegrass crown rust climate is suitable for the occurrence of this disease. Drug control use 25% triadimefon or 25% triadimefol wettable powder, 30-50 grams per acre, watering 1500 kg spray, spray again at intervals of 15 days.
Chicory rot core disease occurs mainly in rainy season or low-lying land. Prevention and control methods, first, do not plant chicory in low-lying; Second, pay attention to drainage; Third, drug control. Drug control Use carbendazim 500 times solution or mancozeb 500 times solution to spray or pour the soil.
One of the scabs of grasses is immersed in 1% lime water; the second is the removal of forage grass; the third is to pay attention to drainage to prevent grassland from standing or getting wet; the fourth is to use carbendazim WP 1000 to 1500 times spray. , Topsin 5% WP 1000 ~ 1500 times liquid spray.
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