First, spray the eradicator to prevent disease. After pruning, before the greenhouse warms up, it is necessary to pick up the vines, and combine the land with the deciduous and unpicked branches and crumbs all buried in the soil. Then spray 5 Baumite Lithosulfide + 100 times sodium pentachlorophenol to eradicate indoor residual pathogens and pests.
Second, ignite the smoke bomb to prevent disease. Every 15 to 20 days after germination, the sterilized smoke bombs are ignited in the greenhouse. Smoke bombs can be used interchangeably with chlorothalonil, keto, benefit, and white powder nets to prevent grape blackpox and frost. Mildew, anthrax, gray mold, powdery mildew and other diseases occur.
Third, spray protection and disease prevention. About 5 days before flowering and about 7 days after flowering, spray "Tianda-2116" with tyrophanthione and other disease-prevention drugs. After that, spray 200 times of half-amount Bordeaux mixture every 20-25 days until grapefruit Stop when the grains begin to change color. Spraying must be careful and careful, so that all parts of the branches and ears, the front and back of the blade can be uniform. Prevent its infection by pathogens and cause morbidity.
Fourth, dichlorvos fumigation pest control. After warming, grape buds start to sprout, close the vents, 667 square meters of greenhouse with 400 ml of 80% dichlorvos solution evenly mixed in 1.5 to 2 kg of sawdust, scattered on the front of the greenhouse for fumigation, kill indoor residual Pests. In order to improve the pest control effect, fumigation should be continued for 24 hours. During the day, the indoor temperature should be maintained at about 30°C. If the temperature is too high, a small amount of grasshoppers can be lowered before and after noon to cool down. Do not leave the room until 2 or 3 hours before the next morning. Interval 5 to 7 days, then fumigation once, can completely eliminate indoor pests.
Grapes are cultivated in the greenhouse. The main insect pests are grape yellow leafhoppers, also known as two-pointed fly dust. The adults and the nymphs suck sap from the back of the leaves. White spots appear on the front of the affected leaves, and the leaves turn white and scorch when severe. Therefore, once a small amount of white spots appear on the leaves, they should be immediately destroyed by dichlorvos fumigation.
Fifth, ear bags to prevent bird damage. Grape bagging can significantly reduce the pest damage, so that the good fruit rate of 98%, and can prevent the ear by birds, bees and beetles and other pests harm, reduce pesticide pollution, is conducive to the production of green food; bagging can also make Grapes are smooth, with delicate flesh, bright colors, and high commodity prices. 1 timely bagging. After 15 to 20 days after the grapes fall, the sparse grain and the grain go in. Bagging should be carried out on a cloudy or late evening to prevent day burns. 2 scientific bag selection. We must use paper bags 30 to 35 cm long and 25 cm wide, such as domestically produced Jiatian bags, dragon bags, Japanese Kobayashi bags, etc. Red varieties can also be made of pure white polyethylene bags. In order to save, newspaper bags or other items can also be used. Paper bag. 3 bagging techniques. Before bagging, spray the bactericidal protective agent carefully. After the liquid is dry, open the paper bag by hand. Hold the bag in one hand, pick up the ear in one hand and gently put it into the bag, and put the ear in the bag center. Finally, the bag mouth is gathered at the base of the ear, and the bag edge can be tied with the iron wire of the bag edge. If there is no wire, a plastic rope can be used to tie the fruit stem tightly for two weeks to prevent the invasion of bacteria. 4 take bags. Picking is usually carried out 2 to 3 days before harvesting, and serious bird damage can be carried out simultaneously with harvesting. The grapes are harvested in the middle or late November and can be harvested and bagged.
Six, vine grafted medicine to prevent cold damage. When the grape is sprouting, the branches on the base of the plant are smeared with 20 times the "Tianda-2116" (special for fruit trees)+1% urea solution to strengthen the plants' ability to resist harsh environment and improve their resistance to drought, disease and cold. , Freezing damage, resistance to phytotoxicity, and photosynthetic efficiency, promote new roots and ensure robust plants.
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