A Detailed Explanation of the Benefits and Key Operational Techniques of Bagging Pear Fruit

There are many varieties of pears, which are grown relatively widely in the northern regions of our country and have relatively high requirements for the growing environment. During the cultivation of pear trees, bagging is often used during the fruiting period to increase the economic benefits and marketability of the pears. Let's take a look below at what benefits pear fruit bagging has and what the key operational techniques are.

I. What benefits does pear fruit bagging have?

1. Improving the appearance quality of the fruit

After bagging, sooty blotch, rust spots, friction marks from branches and leaves, and pesticide spots on the fruit surface are eliminated, and the lignification of fruit dots can be prevented. The fruit dots are few, small, and shallow, and the fruit surface is clean and glossy, easy to color, and the coloring is bright and vivid.

2. Avoiding many kinds of fruit diseases and insect pests

It avoids damage to the fruit by diseases such as ring rot, anthracnose, pear scab, black spot, and fruit rot, as well as by fruit borers, leaf rollers, snails, aphids, pear stink bugs, pear psylla, large scarab beetles, large bees, and others, and can reduce pesticide spraying by 2 to 4 times throughout the year.

3. Reducing contamination of the fruit surface

Due to the isolating effect of the fruit bag, pesticides and soot and dust find it difficult to contaminate the fruit surface, making this one of the main measures for producing green, pollution-free fruit.

4. Bagging can significantly reduce or prevent fruit cracking and accidental injuries

Such as bird damage from sparrows and other birds, and injuries from hail impacts.

5. Bagging can significantly improve the storage performance of the fruit

After bagging, the firmness of the pear fruit increases and the ripening period is delayed. Because bagged fruit has no mechanical bruising and no attached pathogens or insect eggs, it stores safely and does not rot.

II. What are the key operational techniques for pear fruit?

1. Bagging method

First, insert your hand into the bag so that the whole bag expands. Hold the handle with one hand and hold the bottom of the bag with the other hand, place the young fruit into the middle of the bag opening, and then squeeze the bag out from the bag opening. On both sides of the middle handle, after all the bags are folded to the mouth of the fruit handle, on the left side of the bag mouth, tear open the length of the wire clip at the bag mouth, and finally turn the wire clip 90' and bend it tightly onto the fruit handle. Be careful not to tie it to the fruit spur, and do not stretch it excessively to prevent the young fruit from growing away from the clipped fruit handle. After the sleeve is completed, lift the middle of the bottom of the bag with your hand so that the whole bag expands. The ventilation holes at the two bottom corners open, and the young fruit hangs suspended in the bag and does not adhere to the bag wall, so as to prevent bee stings. Fruit and syrup, bacteria, and exocrine contaminants will rust and mold over time.

2. Bagging time

20 days after flowering (around mid-May), when the young fruit reaches the size of a thumb, bagging is completed. Completing the bagging takes about 10 days. Bagging too late, once the fruit has already set, greatly reduces the effect.

3. Preparatory work before bagging

Before bagging, the fruit should be carefully thinned according to the load requirement. The number of bags should be greater than the number of fruits to be bagged, so that there is room for selection when bagging.

Before bagging, insecticidal or fungicidal drugs must first be sprayed 1-2 times, with the focus on spraying the fruit surface and killing the fungi on the fruit surface. The targets of the drug are mainly pear black spot, fruit rot, yellow mealworm, and cutworm. Spray a 800-fold solution of 70% methyl thiophanate plus a 2500-fold solution of 10% cypermethrin plus a 2000-fold solution of 50% monocrotophos. In pear orchards without yellow mealworm and Konishi mealybug, monocrotophos must not be added. Within ten days after spraying, if the sealing gasket has not yet been completed, the remainder should be refilled 1 time.