First, thinning flowers, set fruit in mid-May thinning, set the fruit, conditions can be bagging. Before bagging, in order to prevent certain pests and pathogens from being trapped inside the bag, it is necessary to spray one time with highly effective insecticidal and bactericides for controlling yellowfly, pear rust, and pear scab. Second, pest control (a) drug control. With 25% Diflubenzuron No. 3 2000 times liquid or sweet and sour liquid, it has obvious effect on killing pests such as Pyrosphaeridae. Sugar liquid ratio is 1 part for brown sugar, 4 parts for vinegar, 1 part for wine and 16 parts for water, plus a few drops of 1% mercury or formalin solution. The sweet and sour liquid was placed in a wide-mouth container and hung on a tree 1.5 meters above the ground. One suspension was used for every 5 to 10 plants. (b) manual killing. The use of chafers, pears, pears, tigers and other insects in the pseudo-dead nature, in the early morning or late evening, spread plastic film on the ground, shaking the trunk to kill. When found on the tree trunk, there are wire hooks to kill the larvae of the calf in the trunk. Third, the prevention of scabs From May 20 onwards, sprayed once every 15 days the amount of Bordeaux mixture, and the use of fungicidal or myclobutanil alternately.
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