Peanut planting technology: what are the diseases in the later stage of peanut?

What are the diseases in the later stage of peanut? Please give guidance on the occurrence of leaf spot in peanut in the later stage, which is commonly known as brown spot and black spot, commonly known as black spot and black spot. The damaged leaves were characterized by the destruction of chlorophyll, resulting in early falling flowers and poor pods. Symptoms: Brown spot mainly occurs in leaves, and in severe cases, it also occurs in stems, leaves, petioles and stipules. At the beginning of the leaf, it showed a small yellow-brown round or nearly round spot, and the enlarged spot was brown with a diameter of 1-10 mm. The back of the leaf is also brown or light brown, with obvious yellow halos around it. The manifestations of black spot and brown spot are about the same. If the leaf spot disease is not prevented in time, the yield will be reduced by 10%, 20%, and 40% in severe cases. The pests are Noctuidae pests. Prevention and control methods: when the rate of diseased leaves of peanut plants reaches 10%-15%, the control starts, spraying medicine every 10 mi 15 days, spraying 2 Mel 3 times in a row. 50% carbendazim wettable powder 50 ml / mu is uniformly sprayed to water 15 ml / mu 20 kg, or 50% methyl topiramate 50 ml / mu to water 15 ml / mu 20 kg uniform spray; 75% chlorothalonil wettable powder 50 ml / mu to water 1520 kg uniform spray. Click to get more peanut planting techniques click to get more food crop planting techniques