Key points of apple bagging technology
Key points of Apple bagging Technology
From late May to early June every year, fruit growers bag apples to keep the fruit surface clean, prevent fruit growth, prevent pests from eating pulp, and reduce pesticide residues in apples.
1 bagging time
Bagging can be carried out from morning dew to evening. Bagging is not suitable in rainy and dewy weather. In order to prevent fruit wilting caused by direct sunlight, bagging can be carried out at 8:30 ~ 11:30 and 2:30 ~ 5:30 in the afternoon. The bagging time is also different for different apple varieties: yellow-green apples such as Marshal Huang, Wang Lin and bananas are generally bagged about 12 days after falling flowers. Precocious red apples such as Gala, Jonagin and Meiba are generally bagged about 25 days after falling flowers. Fuji, Red General, Ruby and other late-ripening red apples are generally bagged 30 days after the flower fade.
2 kinds of bags
Generally, two kinds of bags are used, one is plastic bag, the other is paper bag.
2.1 advantages and disadvantages of plastic bags. Advantages: low price, bagging time in advance, avoid fruit pollution by diseases and insect pests, and improve the rate of high quality apple products. Disadvantages: when the fruit is ripe, the background color is green and the color is poor.
2.2 advantages and disadvantages of paper bags. Advantages: the fruit surface is smooth, the fruit is not green, and the color is fast after removing the paper bag. Disadvantages: paper bags are expensive, rainy days are easy to get wet, bags are easy to rot, and bagging time is late, which will lead to fruit infection.
2.3 Fruit growers can also cover the bags with plastic bags and paper bags about 20 days after the flower fade. The advantages of bagging together: leave plastic bags after removing the outer paper bags, such as drought or rainy days will not cause great loss, the fruits will be stored in the fruit bank together with plastic bags after harvest, which can not only keep water but also keep fresh.
3The time and method of picking the bag
Pick the bag 20-30 days before apple picking, pick the outer bag first, and then pick the inner bag.
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