There are three kinds of Tianniu species: Sang Tianniu, Xingtianni, and Bianhongshangou. 2 to 3 years old, endangering xylem and medullary heart. The affected area has a normal epidermis. There is a row of fecal holes at regular intervals. The path of insects is straight. The red-brown worms excrete on the ground, with a cotton ball and a little 80% dichlorvos EC. Or 0.2 grams of aluminum phosphide made into the penultimate or second row of fecal holes, and all the fecal holes sealed with wet mud. Aluminum phosphide is very toxic and is safe to use.

Giardiasis parasitizes in apples and pear trees and occurs one or two years after generation. It damages the superficial cortex, phloem and formation layers, and the cortical areas of the affected areas are cracked. Red mucous oozes out from the insects, commonly known as "red oil." The helix spirals upward into an ellipse, and insects are piled with brown worms. Add 1 kg of kerosene and 0.1 kg of 80% dichlorvos emulsifiable concentrate to the insects and kill their larvae.

Pyrus bee occurs one generation a year. Female adults lay their eggs in the phloem of young shoots in mid- and mid-April, and then use their jagged ovipositors to saw off the upper part of the spawning site. Go straight down to the biennial branch and settle in for the winter. When cutting in winter, cut the broken piles, pay attention to cut to the branches of the three-year-old, concentrated burning.

Grape-turned beetle moth is the main pest of the grape. It occurs one year after birth. It damages the young shoots of the larvae and affects the growth of the branches and the development of the fruit. After the pith is eaten, the shoots often become enlarged and become overwintering. When cutting in winter, remove swelling stems and concentrate. For coarser vines, 80% of dichlorvos can be tapped into the borings with cotton to eliminate larvae.

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