How to prevent and cure mung bean round spot disease?

What harm does mung bean round spot disease have? How to prevent and cure mung bean round spot disease? There are no netizens to help introduce the harm and control methods of mung bean ring spot disease in the farming network, which are listed below for netizens' reference. The harm of mung bean ring spot disease: mung bean ring spot disease is mainly harmful to leaves. Mung bean can be infected after emergence, but there are many diseases in the later stage. The leaf is infected, the primary brown round spot, the edge is reddish brown. There are obvious concentric wheel lines on the disease spot, and there are many brown dots on the disease spot in the later stage, that is, the conidium of the pathogen. The disease spot is easy to break when it is dry, and the leaves with serious disease fall off early, which affects the fruiting. In the growing season, if the weather is warm, high humidity, or excessive close planting of high humidity, are conducive to the occurrence of the disease. With the partial application of nitrogen fertilizer, the plant growth is too prosperous, or the fertilizer is insufficient, the plant growth is weak, and the disease is serious. Methods for the prevention and control of mung bean round spot: spray 77% chlorhexidine wettable particulate powder 500 times, or 30% basic acid copper suspension 400 times, or 47% Ruinong wettable powder 800 times, or 20% thiophanate 1000 times + 75% chlorothalonil 1000 times, or 40% polysulfide suspension once every 710 days. A total of 3 times of prevention and treatment were given. Click to get more mung bean planting technology click to get more food crop planting technology