Control method of mung bean ring disease

Mung bean ring disease treatment not only infects mung bean, but also harms adzuki bean, kidney bean, broad bean and so on, causing the outbreak of brown spot, mainly harming the leaves, causing the leaves can not work properly, and has a great impact on the yield. So how to prevent and cure mung bean ring disease? Come and have a look with the editor.

1. Occurrence of symptoms

Mung bean ring disease mainly harms the leaves, which can be infected immediately after emergence, but there are more diseases in the later stage. when the leaves are infected, the primary brown round disease spot, the edge is reddish brown, the obvious concentric wheel pattern appears on the disease spot, and there will be a lot of brown spots on the disease spot in the later stage, that is, conidium. The disease spot is very easy to break when it is dry, and when the disease is serious, it will cause the leaves to fall off early, affect the fruiting, and individual plots will suffer seriously.

2. Occurrence regularity

The pathogen of ring streak disease overwintered or oversummer with mycelium and conidium in the diseased part or disease residue in the soil, and spread by conidia by Rain Water sputtering for the first time. After parasitic on the plant, it will propagate rapidly and spread again in the formation of conidium. When the temperature is warm and humid, or the humidity between the plants is too high, it is beneficial to the attack of the disease. The overgrowth of the plants with nitrogen fertilizer or the weak growth of the plants lacking fertilizer will lead to the decline of plant disease resistance and serious disease again.

3. Prevention and control methods

Mung bean ring disease can be infected immediately after emergence, so it is necessary to do a good job in agricultural control, thoroughly clear the fields after harvest, and burn weeds and disease residues centrally, so as to reduce the number of pathogens. Before sowing, it is necessary to dig deep into the soil, eliminate underground pests, and apply quicklime once in order to achieve the effect of disinfection and sterilization and reduce the incidence as much as possible. In the early stage of the disease, you can spray Bordeaux liquid 200 or kill 500 times the liquid and basic copper sulfate 500 other industries, once every 7-10 days, continuous prevention and treatment for 2-3 times.

The above is the introduction of the prevention and control methods of mung bean ring disease, hope to help you, want to know more related knowledge, please pay attention to us.