Beet is one of the common ingredients on our table. It has many practices and can be cooked or marinated. In addition, its sugar content and sugar cane are relatively important. It is also one of the main raw materials for sugar production and an important economic crop. However, it is susceptible to pests and diseases during planting, which often leads to its reduction of production and degradation, affecting economic benefits. The following pro-farm network will bring you common methods to prevent and control sugar beet. Let's take a look.
1. Beetroot rot
The root rot is mainly caused by bacterial infection. The spore fungus is safely overwintered in the soil. It will be transmitted through soil and rainwater in the coming year. When the disease is serious, it will lead to root rot and death, resulting in reduced or no harvest.
Control method: clean up the weeds before wintering, then deepen the soil, use the sun for disinfection, and perform a disinfection treatment before planting. After the onset, the bacteria can be sprayed with fresh herbs, and other roots can be used to infuse the roots.
2, beet brown spot
Beet brown spot disease is the growth and development of pathogenic bacteria. This pathogen grows rapidly in high temperature and high humidity environment and is harmful during the rainy season in summer. At the time of onset, the pathogen infects the leaves, and the leaves appear brown spots, which gradually spread and cause the leaves to die, resulting in extinction.
Control method: It is mainly caused by bacteria carried in the soil. Therefore, the soil can be disinfected to prevent this disease. The selected body is sprayed and disinfected. After spraying, it is covered with film or straw, and 3-4 days later, it is ventilated.
3, beet blight
Blight disease mainly affects the seedling stage or bud stage of sugar beet. It often rots when the young shoot has not yet emerged, or when two or three true leaves grow, the brown plaque appears on the stem of the seedling, and then the cotyledon of the cotyledon is blackened. And eventually died.
Control method: It mainly occurs in low temperature and high humidity, poor soil permeability and poor drainage environment, so planting needs to pay attention to some conditions. Before seeding, the seeds are treated with seed dressing to eliminate the pathogens carried by the seeds, increase the application of phosphate fertilizer, increase the disease resistance of the seedlings, and use pesticides to control the disease.
4, night moth
The larvae harm the sugar beet by larvae. Its larvae suck the sap of the leaves and stems. The yellow-white lesions appear in the diseased parts after smoking, and finally the leaves die and fall off, becoming light rod seedlings, resulting in reduced or no harvest.
Control methods: timely ploughing or winter ploughing, reducing wintering cockroaches, timely cleaning weeds and reducing eggs in 3-4 months, or using artificial egg collection and capture methods. It can also be controlled by chemical methods, and sprayed with water of the mites or larvae powder at the peak of the night moth.
5. Blue bug
Like the noctuid, the blue bugworm harms the stems and leaves, but it directly feeds on the leaves, causing the leaves to be nicked. In severe cases, the leaves are all eaten, which also causes the light rod seedlings.
Control method: deep ploughing before planting, elimination of wintering eggs or larvae, or artificial capture, can also be sprayed with cyhalothrin emulsion after watering.
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