The spread and prevention of watermelon virus disease

The spread and prevention of watermelon virus disease

Watermelon virus disease is mainly caused by melon mosaic virus and cucumber mosaic virus. The virus has become a source of infestation early in the year in the body of aphid-carrying worms, on the epidermis of seeds, and on certain perennial weeds. Aphids and melon leafworms are their media, and the contact of agricultural activities is an important way to spread.

Control methods:

(1) Seed treatment. Leave seed from disease-free plants. The wet seeds soaked for 3 hours before sowing were soaked in 0.1%-1.0% potassium permanganate solution for 30 minutes and sprayed with a new high fat film.

(2) Scientific selection of land. The watermelon field should be kept away from other melons to reduce the transmission of poison.

(3) Prevent contact spread. In field operations such as pruning, vines, pollination, etc., the diseased plants will be carried out after the first strain. At the seedling stage, the diseased plant was removed early and replaced with a healthy plant. The whole park sprayed the tree maintenance general to sterilize and reduce the germ source.

(4) Strengthen field management. Apply more organic manure, apply basic fertilizer, formula fertilization, scientific irrigation, chemical control, cultivating strong seedlings, and improve resistance to disease. Spraying Zinc-gutinate before watermelon blossom, young fruit, and fruit enlargement will increase Guatea’s growth. Coarse, strengthen the amount of directional transport of nutrition, promote the rapid development of melons, melons, beautiful, juicy and more delicious; growth cycle does not fall, not melon, no crack melon, no abnormal melon.

(5) Chemical control. Field timely control of locusts, can use 40% omethoate 1000 times to love the new high-fat membrane 800 times spray control, the beginning of the disease began to spray 20% of the virus A500 times control, with the new high-fat membrane 800 times liquid to improve The utilization of effective pharmaceutical ingredients, consolidate the control effect, once every 7 days or so, even spray 2-3 times.

(5) Chemical control. Field timely control of locusts, can use 40% omethoate 1000 times to love the new high-fat membrane 800 times spray control, the beginning of the disease began to spray 20% of the virus A500 times control, with the new high-fat membrane 800 times liquid to improve The utilization of effective pharmaceutical ingredients, consolidate the control effect, once every 7 days or so, even spray 2-3 times.

Control methods:

(1) Seed treatment. Leave seed from disease-free plants. The wet seeds soaked for 3 hours before sowing were soaked in 0.1%-1.0% potassium permanganate solution for 30 minutes and sprayed with a new high fat film.

(2) Scientific selection of land. The watermelon field should be kept away from other melons to reduce the transmission of poison.

(3) Prevent contact spread. In field operations such as pruning, vines, pollination, etc., the diseased plants will be carried out after the first strain. At the seedling stage, the diseased plant was removed early and replaced with a healthy plant. The whole park sprayed the tree maintenance general to sterilize and reduce the germ source.

(4) Strengthen field management. Apply more organic manure, apply basic fertilizer, formula fertilization, scientific irrigation, chemical control, cultivating strong seedlings, and improve resistance to disease. Spraying Zinc-gutinate before watermelon blossom, young fruit, and fruit enlargement will increase Guatea’s growth. Coarse, strengthen the amount of directional transport of nutrition, promote the rapid development of melons, melons, beautiful, juicy and more delicious; growth cycle does not fall, not melon, no crack melon, no abnormal melon.

(5) Chemical control. Field timely control of locusts, can use 40% omethoate 1000 times to love the new high-fat membrane 800 times spray control, the beginning of the disease began to spray 20% of the virus A500 times control, with the new high-fat membrane 800 times liquid to improve The utilization of effective pharmaceutical ingredients, consolidate the control effect, once every 7 days or so, even spray 2-3 times.

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