How to prevent and cure the anoplophora glabripennis?

The bare-shouldered longicorn beetle, also known as the Asian longicorn beetle, is an important forestry pest. Larvae eat tree trunks and adults bite on leaves or twigs, bark and xylem, causing a large amount of wood loss every year, killing trees gradually within 3-5 years. This powerful forestry pest can be dealt with by large-spotted woodpeckers. Let's take a look at how to control the bare-shouldered longicorn beetles.

Agricultural prevention and control

Breeding insect-resistant varieties, reasonable close planting, proper pruning, so as to facilitate ventilation and light transmission, centralized burning of cut branches of diseases and insect pests, and reduce the occurrence of insect pests. Strengthen tending management, rational fertilization, increase the application of phosphorus and potassium fertilizer, make the plant grow healthily and enhance the ability of insect resistance. The peak period of adults is from May to June, and adults are hunted and killed artificially in the early morning when longicorn beetles are weak. At the same time, check the base of the tree trunk, master the spawning site and grooving of longicorn beetles, scrape eggs and newly hatched larvae with a knife. When the longicorn beetle larvae are not eaten into the xylem or only on the wood surface or when the decay path is not deep, steel wire hooks can be used to kill the larvae.

Chemical control

When pests are found, an injection syringe can be used to inject pesticides into the tunnel to kill the larvae. Commonly used 80% dichlorvos EC 500 times solution or 40% omethoate EC 30 times solution, injected into the wormhole or impregnated cotton plug hole (externally sealed with slime), or with deltamethrin and other pesticides made into the wormhole to poison larvae, can also use 52% aluminum phosphide tablets for single plant fumigation, 1 tablet per plant, or digging pit sealing fumigation, 2 tablets / square meter, the mortality rate reached 100%.

Biological control

Woodpeckers are the main natural enemies of longicorn beetles, which should be actively protected and attracted. Generally, a pair of woodpeckers in 500 mu of woodland can restrain the occurrence of longicorn beetles. The attraction method is to hang an attraction wood every 150m in the woodland in autumn. The attraction wood should be a soft, heart-rotten wood section, 60 cm long and 20 cm thick, with a wooden cover nailed at the top to prevent Rain Water from inflow.

White tree trunks

Can be mixed with 10 kg of lime, 1 kg of sulfur, 10 g of salt and 20-40 kg of water, and then brush the base of the trunk, which can effectively kill the overwintering eggs and stem-eating longicorn beetles in the bark and put an end to the insect source. General street trees unified whitening height of 1.2 to 1.5 meters, other can be 1.2 meters, the same section of road whitening height should be consistent to achieve a neat and beautiful effect. The liquid should be dry and sparse properly, and the bark gaps, holes, branches and other places should be brushed repeatedly to avoid brush loss, brush leakage and fall off after drying. It should be carried out every year after the rainy season in late autumn and early winter, and it is best to apply it again in early spring for better results.