What are the common diseases of mung bean? A detailed explanation of the latest control methods
In summer we all like to cook mung bean porridge to drink, because mung bean has the effect of clearing heat and reducing internal heat. In the hot summer, people's appetite is slightly poor, and at this time drinking a bowl of iced mung bean porridge is simply wonderful. Mung bean is also a common kind of the five grains and miscellaneous cereals, is extremely popular on the market and has a wide range of uses, but during the planting process it will encounter many diseases and insect pests, causing losses. Below, Qinnong Web brings you the common diseases of mung bean and their control methods.
1. Damping-off
Damping-off mainly harms seedlings. When the seeds begin to sprout, the pathogen invades and lurks in the seedlings, slowly rotting the cotyledons and stems, causing seed rot. In the early stage of the disease, water-soaked lesions begin to appear at the base of the stem, gradually turning yellow-brown and slowly shrinking into a line shape. The disease develops quickly, and the seedlings can lodge before the leaves have even sprouted.
Control methods: When planting, choose a place with higher terrain that is flat and dry. In addition, the groundwater level should be low, and the soil drainage should be good. Avoid planting in low-lying, highly humid environments, and try not to plant in areas where the same type of crop has been grown. Disinfect the soil before planting. Soak the seeds in warm water, then stir them with a fungicide to sterilize them. Sow reasonably and not too densely. Remove diseased plants promptly and burn them, then spray chemicals for control.
2. Root rot
When root rot occurs, it often causes plant death, and it is not easy to notice when it occurs. In the early stage of the disease, some leaves begin to turn yellow, and over time the area slowly expands, and finally the leaves wither and the plant dies. When the root system is pulled out, the underground roots can be found to be already rotting.
Control methods: The incidence of the disease is high in low-lying, highly humid areas with low temperatures. Before planting, choose varieties with strong disease resistance. Carry out timely intertillage and weeding, and drain water promptly after the rainy season. In the early stage of the disease, drench the roots with chlorothalonil, or spray with Fulingling.
3. Powdery mildew
Powdery mildew is a common disease of crops. It not only harms mung bean. It is spread by spores. Diseased plants and plant residues from the previous year overwinter in the planting field, and in the following year spread by wind or other means. When the disease occurs, lesions appear on the leaves. As the lesions expand, white powder appears on them, causing the leaves to curl and become deformed, and in the later stage small black particles appear within the white powder.
Control methods: Before planting, burn diseased plants and plant residues in a centralized manner, then deep-plow the soil and expose it to the sun until it turns white to prevent the spores from overwintering. When the disease occurs, remove the diseased plants, then spray with rust-leaving wettable powder for control.
4. Insect pests
Mung bean has many insect pests. Common ones include black cutworm, scarab beetles and aphids. These insects all gnaw on the young branches, young leaves and root systems of the plants or suck the sap of the stems and leaves, ultimately causing the plants to wither and die or causing reduced yield, with extremely great harm.
Control methods: Insect pest control is mainly based on chemical control. Strengthen field management, and also spray chemicals regularly for control in normal times. When insect pests are found, deal with them promptly.
The above are the common diseases of mung bean and their control methods brought to you by Qinnong Web. We hope the above can help those in need. For more related agricultural knowledge, please stay tuned to Qinnong Web.