Pumpkin virus disease symptoms and prevention points

Symptoms of the disease: 1 mosaic type: yellow-green inter-flowered mottled leaves appear on the leaves, the leaves are small, the leaves are curled, and the edges are curled. On the fruit, there are dark, green and green spots on the melon. 2 wrinkle type: mostly appeared in the adult stage, the leaves appear shrunken, the diseased part appears uplifting green and yellow phase mottled, the edge of the leaves is difficult to carry out, while the leaves become thicker, the leaves become thicker. 3 Fern leaf type: The new leaves of the pumpkin plant grow into fern leaves and become chicken claws. The surface of the fruit suffers from uneven spots and uneven color, and the fruit is not enlarged.

Control points: 1 seed treatment: can be seeded with new high-fat membrane before sowing, heat preservation, moisturizing, swelling, increase seed germination rate, make seedlings strong. Repel underground pests and isolate viral infections. It can also be mixed with a seed coating. 2 Strengthen field management: timely sowing, reasonable fertilizer, and strong seedlings. In the farming operation, the hands exposed to the diseased plants are washed with soap and then subjected to farming operations to prevent contact with infection. 3 timely prevention and control of drug-borne insects: in the early stage of aphids, whiteflies, and thrips, timely use of drugs to prevent and spread the virus. 4 Pharmacy prevention and treatment: start prevention and treatment at the beginning of the onset or before the onset of the disease. When using the drug, you can use the targeted high-fat membrane together with the strong high-fat membrane and Zhuanggua ti-ling. It can play the role of internal meridian conditioning and outer skin protection for plant growth and development. effect. After the treatment, the plant's nutrient digestion and metabolic energy are increased, and the spread of the bacteria is inhibited.