Grape bagging period: grape bagging period is generally in the fruit sitting stable, the whole spike and thinning the end of the grain immediately after the beginning of the rainy season before the end of the rainy season to prevent early infestation of disease and to prevent sunburn, to avoid high temperature weather after the rain or cloudy and rainy after a sudden clearing of the weather for bagging, generally after 2-3 days, to be slightly adapted to the high-temperature environment and then bagging.

Grape bagging method: before bagging, the orchard should be fully sprayed with a fungicide, focusing on spraying the cob, to be slightly dry before bagging, the first bag end 6-7CM immersed in water, so that it is wet and soft, easy to contract the bag, bagging, the first hand will be propped up to open the paper bag, so that the paper bag bulging, and then from the bottom to the top of the entire cob of all the bags, and then contract the bag mouth to the cob stalk, with the One side of the sealing wire tight, above the wire to leave 1-1.5CM of the paper bag, bagging is strictly prohibited to rub the cob with your hands.