Dendroctonus armandi attractant and application thereof

Abstract

The invention discloses a dendroctonus armandi attractant and application thereof. The attractant is prepared from the following components: 0.2-0.8 part of alpha-pinene, 0.4-0.6 part of beta-pinene, 0.6-3 parts of trans-beta-ocimene, 0.4-2 parts of 1-octene-3-alcohol, 3-8 parts of cis-11-hexadecadienal, 1-5 parts of n-octanal and 30-70 parts of acetaldehyde. The invention also provides a using method of the dendroctonus armandi attractant. The dendroctonus armandi attractant is obvious in attractive effect of the dendroctonus armandi, is capable of achieving ecological prevention and control of the dendroctonus armandi, is environmentally friendly, and is low in cost and simple to use.

Description

technical field [0001] The invention relates to a Huashan pine bark beetle attractant based on plant volatiles and an application thereof, belonging to the field of insect attractants. Background technique [0002] The Huashan pine beetle belongs to Coleoptera, Scolytidae and Dendroctonus, endemic to my country. When the adults are first eclosion, they are light yellow, and then gradually turn into light brown, dark brown to black. The first eclosion adults feed on the phloem around the pupal chamber and the sub-tunnel to supplement nutrition. An important reason for tree vigor to weaken and die. After the adults fly out, they mainly harm the healthy standing trees of Huashan pine for more than 30 years. After the invasion, the tree vigor of the host tree is weakened sharply, which lays the foundation for the invasion of other pine bark beetles and trunk borers. Therefore, the Huashan pine bark beetle belongs to my country's Qinling and The pioneer insect species of Huashan...

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Problems solved by technology

[0003] At present, the control schemes for the Huashan pine beetle mainly include: (1) chemical pesticide control, spraying pesticides during the peak period of adult damage, but the area of ​​the pine forest is large and the trees are luxuriant, and the chemical pesticide control method consumes more manpower and financial resources. And it is easy to produce pesticide damage and cause harm to the environment; (2) Strengthen forest management, rationally plan afforestation land, select good varieties and strong seedlings, and enhance the insect resistance of trees; build mixed forests; strengthen tending management, maintain forest environmental sanitation, and protect Protect trees from other diseases and leaf-eating pests, so as to improve the growth of trees and the ability to resist borer pests; cut down and remove pest trees in winter and spring, or peel them off, and burn them in a centralized way; set up bait trees to lure adults to sneak in and treat them ; (3) Natural enemy control method, there are many types of natural enemies, among which parasitic insects include the qinling chrysalis, the pine beetle stipe, the large beetle, the pine beetle, and the strange long tail ; Predatory insects include walking insects, guogong insects, paederus, ants, etc., but the control cycle of natural enemies is long, the effect is slow, and it is greatly affected by the environment

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