Spring greenhouse pepper disease prevention

Chili pepper disease has become a devastating disease on peppers in spring greenhouses. The disease is dominated by leaf rot in exposed areas and root rot in protected areas. Chili pepper disease intrudes from the root and neck in the protected area, and the disease is dark brown. Depression or atrophy, lesions can cause roots to die around the stems, plants withered. The bacteria in the shed are mainly spread by irrigation water, and the disease centers are mostly formed in low-lying water in the shed, heavy soil, or shed film leakage. The most important factor affecting the degree of disease is soil moisture. The higher the soil moisture, the faster and heavier the disease, especially the flood irrigation, the roots of the pepper submerged in water, can easily cause destruction of the shed. Advance preventive measures seed bed sterilization, prevention of Seedling disease. Before nursery, use 50% carbendazim 10g 20kg mixed with seedbed soil per square meter, apply 2/3 of the medicinal soil to the seedbed, and the other 1/3 to cover seed. Cultivation and disease prevention, the implementation of high ridge cultivation. The height of the ridge bottom is 90 centimeters wide, the top is 50 centimeters, and the bottom of the ditch is 20 centimeters wide. Double lines are planted on both sides of the high ridge. To prevent excessive irrigation, prevent flooding and flooding, so that the base of the plant does not come in contact with water, so as to keep the ground dry and wet. Chemical control First, before planting, use 25% metalaxyl WP 0.5 kg per 667 square meters and sterilize 70 kg of water. The second is spraying and irrigating the roots after colonization. Before the onset of disease, spray the stems and surface of the plants to prevent initial infection. In the middle and late stages of growth, especially after the central diseased plants are found in the field, timely spray and irrigate the roots to seal the onset center once a week for 2 consecutive days. ~ 3 times. The agent may be used as a 50% methothenic copper wettable powder 800 times, or as a 58% Leidemir wettable powder 500 times.

Turfgrass

Agrostis Stolonifera,Astragalus Sinicus,Vicia Villosa,Agropyron Cristatum

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