Wood beetle moth is a kind of dry moth, the larval activity period is from March to October, adult insects mostly appear in April to July, up to October at the latest, widely distributed in northeast, north China, central China, east China, northwest and other places, often causing destructive tree disasters. Larvae are high in fat and particularly resistant to hunger, such as elm beetle moth larvae that can live from 113 to 447 days after hunger strike. It often harms plants such as ash, dachshund trees, jacaranda, cherry blossoms, elms, begonias, and yuanbao maples. Common types are the small-lined wood beetle moth (small brown wood beetle moth), coffee wood beetle moth, aromatic wood beetle moth and so on.
[1] Common types
1. Small-lined wood beetle moth
2. Coffee wood beetle moth
3. Aromatic wood beetle moth (poplar beetle moth)
[2] Hazard characteristics
1. The early larvae are concentrated and harmful, often gathering dozens or even hundreds of heads in the trunk, forming a large hollow.
2. The excrement discharged from the worm hole is wood chips and mixed with mucus, sticking together.
3. Endanger the upper branch and the lower trunk, the moth road is connected, connected up and down, and the cortex is easy to peel off.
4. The trees that are killed are light and withered, and the trees are gradually weakened and die.
[3] Prevention and control measures
1. Strengthen management, enhance tree posture, prevent mechanical damage, cut down seriously damaged branches, artificially capture underground overwintering larvae in autumn, and scrape off egg blocks at the cracks in the bark.
2. Master the feathering period of adult insects, trap adult insects, and use new high-pressure black light or sexual pheromone traps to trap and kill.
3. The use of QiLin Yongfan, Royal Moth + Cheng Attack for medicinal control.