Control methods of common diseases of pumpkin

Pumpkin is one of our common crops, which has strong adaptability, disease resistance and less harm to diseases and insect pests, but with the development of a series of products, it also promotes its planting area to a certain extent. This also provides favorable conditions for the occurrence of diseases, diseases occur more and more frequently year after year, the following pro-agricultural network to bring several common pumpkin disease control methods, let's learn about it.

1. Pumpkin blight

The blight mainly harmed the seedlings, stems, leaves and fruits of pumpkin. Brown spots appeared in the disease part at the initial stage of the disease, and rapidly spread when the air humidity was high, resulting in water-stained soft rot areas and white mildew around the disease parts. finally, the fruit withered and rotted or the plant rotted and died.

Control methods: select plants in the zone with high terrain, loose soil and good drainage, preferably with wheat or corn as rotation. The disease is mainly controlled by disinfection and sterilization of seeds and soil before planting, strengthening management and controlling temperature and humidity at ordinary times.

2. Pumpkin powdery mildew

Powdery mildew mainly harms the stems and leaves of pumpkin. At the initial stage of the disease, the leaves appear small white spots, which slowly spread, and the disease spots gradually expand. It is best that the disease spots are covered with a layer of white powder, resulting in leaf yellowing and death.

Control methods: select varieties with strong growth and strong disease resistance, strengthen fertilizer and water management, enhance plant disease resistance, disinfection before planting, isolate bacterial infection, and spray carbendazim wettable powder or chlorothalonil at the initial stage of the disease.

3. Anthracnose of pumpkin

Anthracnose mainly harms leaves and fruits, waterlogged spots appear when the leaves are sick, and then spread into large brown spots, and pink sticky substances appear when the spots are hot and humid; when the fruit is infected, waterlogged spots also appear and gradually expand, and finally the lesions become black and rotten.

Control methods: seed disinfection with Fumishuang wettable powder to eliminate the germs carried by the seed epidermis, it is recommended to rotate with corn, wheat and other crops to reduce the occurrence of diseases. The disease can be cured after spraying with chlorothalonil wettable powder or mancozeb once a week for 2-3 times in a row.

4. Pumpkin downy mildew

Downy mildew is one of the main diseases of pumpkin, which mainly harms the leaves. When the disease occurs, the leaves appear water-immersed yellow spots, which gradually spread, and finally lead to the formation of yellow-brown irregular polygonal disease spots. In a humid environment, the disease spot will have a gray-black mildew layer, and when the disease is serious, the whole planting land will be withered and yellow.

Prevention and treatment of downy mildew: to control downy mildew mainly, select varieties with strong disease resistance, disinfect seeds with carbendazim wettable powder during planting, strengthen field management and enhance plant disease resistance. Strictly control the temperature, strengthen the ventilation conditions, use chlorothalonil, carbendazim and other chemical spraying for chemical control.

The above are the prevention and control methods of pumpkin common diseases brought by pro-agricultural network, so much for the introduction of pumpkin diseases. More knowledge about agriculture, please pay attention to pro-agricultural network, we will not let you down.