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Peanut Pest Control
The late growth of peanuts is mainly susceptible to leaf spot disease. Common leaf spot diseases are brown spot and black spot, commonly known as spot disease and black spot disease. Damaged leaves showed damage to chlorophyll, resulting in early flowering and failure of pods. Symptoms The occurrence of brown patch mainly occurs in the leaves, and in severe cases, shoots, petioles, and stipules also occur. In the initial stage, the leaves were yellowish-brown or round, and the spots were enlarged and the lesions were tan. The diameter was 1-10 mm. The back of the leaves is also brown or light brown with a clear yellow halo around it. Black spot and brown spot have roughly the same performance. If the control of leaf spot is not timely, generally reduce production by 10% -20%, and severe cases can reach 40%. Pests are noctuidae pests. Prevention of leaf spot disease When the rate of diseased leaves of peanut plants reaches 10% to 15%, it begins to be controlled, sprayed once every 10 to 15 days, and sprayed 2-3 times continuously. Use 50% carbendazim wettable powder 50ml/mu to spray 15-20kg evenly, or 50% thiophanate-methyl 50ml/mu to spray evenly 15-20kg; 75% chlorothalonil can be used Wet powder 50 ml/mu Evenly spray 15-20 kg of water. Nocturnal insect pest control with 10% enemy killed 50 ml/mu water 10-15 kg evenly sprayed or 20% Chrysanthemum cream 50 ml/mu water 10-15 kg uniform spray. Since the leaves of the peanuts are smooth, some adhesives may be added as appropriate.