Snake melon virus disease is the main disease in the production of snake melon, which seriously affects the quality and yield of snake melon. It is necessary to carry out pesticide control in time.
Symptoms: Both the seedling stage and the adult stage can occur. The incidence of the adult stage is heavy. The leaves of the diseased plants, especially the top leaves, show small mottled leaves with unevenness and unevenness, accompanied by slight blisters. The leaves become smaller and slightly deformed. The fruit is diseased, distorted, and the spot is slightly visible near the fruit stalk.
Snake melon virus disease prevention and treatment methods:
1. Apply early seedlings, simple cover, early planting, avoiding the abundance of aphids and high temperatures. Planting should be reasonably densely planted. After planting, the root water should be poured in time, and the spraying of the new high-fat film 800 times liquid can effectively prevent the ground water from evaporating, the seed water is not transpiration, isolate the pests and diseases, shorten the slow seedling period, and quickly adapt to New environment, healthy growth.
2, formula fertilization, strengthen fertilizer and water management, and cultivate strong plants. During the growth of snakes, timely watering, topdressing, pest control, timely arranging and vines, while spraying the squash in the pre-flowering, young fruit, and expansion stages of the snakes to enhance the quality of pollen fertilization, enhance the cycle fruit set rate, and promote Fruit development, no empty shell, no glutinous grains, good uniformity, improved quality, so that snakes and melons can be produced in succession.
3, chemical control, found that the diseased plant immediately removed, burned, and sprayed 7.5% of the bacteria according to plant protection requirements • China's pesticide network recommended the use of morpholin (Kingling) water 500 times solution or 3.85% three The ribavirin (viral Kang) soluble powder 800 times liquid and other targeted agents are used for prevention and treatment, and the new high-fat film is sprayed to enhance the efficacy and consolidate the control effect.
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