The symptoms of cowpea wilt disease and its control methods
2020-10-03 13:13:57
1. Symptoms can be harmed by cowpea wilt during the whole growth period of cowpea, and it is generally found in the field at the early flowering stage. After the dish gets sick. All began to turn yellow from the lower leaves and spread from the lower side to the upper leaves. The cortex of the rhizome often cracks. If the cortex is torn open, the vascular tissue becomes brown.
2, control methods (1) selection of disease-resistant varieties. The incidence of different varieties of kidney beans varies widely.
(2) The diseased vegetable plots were planted for more than three years to plant non-legume vegetables.
(3) Combine with soil preparation, low-lying or easy-to-soil land use for planting sorghum deep ditch, applying lime and mixed fertilizer.
(4) Apply the drug promptly at the beginning of the disease. Use 25% carbendazim WP 500 times to irrigate the roots, 200-300 ml per drug solution, apply every 7 days or so, and apply 2 times. Can also be 25% carbendazim wettable powder and dry fine soil mix, made of medicinal soil, ditch applied in the sowing line (hole) after dressing, the amount of medication per acre (the original drug) 0.5-0.8 kg.
2, control methods (1) selection of disease-resistant varieties. The incidence of different varieties of kidney beans varies widely.
(2) The diseased vegetable plots were planted for more than three years to plant non-legume vegetables.
(3) Combine with soil preparation, low-lying or easy-to-soil land use for planting sorghum deep ditch, applying lime and mixed fertilizer.
(4) Apply the drug promptly at the beginning of the disease. Use 25% carbendazim WP 500 times to irrigate the roots, 200-300 ml per drug solution, apply every 7 days or so, and apply 2 times. Can also be 25% carbendazim wettable powder and dry fine soil mix, made of medicinal soil, ditch applied in the sowing line (hole) after dressing, the amount of medication per acre (the original drug) 0.5-0.8 kg.
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