Pear moth is the first and second generation larva, which harms the tender branches of peach, plum, apricot and cherry. Most of them feed from the base of the second and third petioles at the top of the new branches, and feed downward in the medulla. The end of the injured twig withered and drooped, and glue flowed from the affected area. The fruits damaged by the third and fourth generation larvae mostly feed from the depression of the fruit stem or the depression of the calyx, and turn black and rot around the fruit entry hole, with insect feces inside. In the later period, Confucius ate the fruit, the orifice was green, and the fruit bore reached the stone directly, and the fruit shape remained unchanged. The peak of fruit setting is mostly from late August to early September, and late-maturing varieties are seriously damaged.

1, do a good job of clearing the garden, scrape off the old bark of the tree in winter or early spring, burn it centrally, and remove the overwintering larvae. Before the overwintering larvae drop fruit, the grass stems can be tied to branches and trunks to lure the overwintering larvae, and then the grass stems can be taken down and burned before the next spring.

2. Sex traps and pesticides are used to trap and kill. Generally, per mu 15 sex lure. When the insect population density is high, the long-acting special pesticide should be sprayed 1 time before hanging.

3. Chemical control. Use the medicine in time at the peak of adults, and the medicine can be 5000 times of 5% avermectin or 3000 times of 25% mirex.

4. According to the tendency of pear moth to the smell of sugar, vinegar and wine and black light, set black light or hang a sweet and sour pot in the orchard to trap and kill adults. The proportion of sweet and sour liquid is 5 parts of brown sugar, 5 parts of wine, 20 parts of vinegar and 80 parts of water.