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Application of semiochemical substances in repelling the spruce bark beetle and slow-release bags of repellent and its application

A technology of chemical substances and repellents, applied in the field of biological control of spruce beetle, can solve problems such as spruce death

Active Publication Date: 2021-06-08
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the application of aggregation pheromones can reduce the population density of the spruce bark beetle pest to a certain extent and reduce its damage to the spruce forest, but in the perennially endangered spruce ecosystem area, the spruce eight-tooth beetle Tooth beetle population densities are still capable of causing massive spruce die-offs
Therefore, there are still some disadvantages in the management strategy of spruce bark beetle pests only from the perspective of mass trapping, and it is of great ecological and economic significance to find efficient and pollution-free population repellents for the protection of spruce forests

Method used

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  • Application of semiochemical substances in repelling the spruce bark beetle and slow-release bags of repellent and its application
  • Application of semiochemical substances in repelling the spruce bark beetle and slow-release bags of repellent and its application
  • Application of semiochemical substances in repelling the spruce bark beetle and slow-release bags of repellent and its application

Examples

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preparation example Construction

[0024] In the present invention, the preparation method of the repellent slow-release bag preferably includes: adding the semiochemical substance into absorbent cotton, and then putting the absorbent cotton into a polyethylene plastic bag and sealing it. In the present invention, the absorbent cotton is preferably medical absorbent cotton.

[0025] The present invention also provides the application of the repellent slow-release bag described in the above technical solution in repelling the spruce bark beetle.

[0026] In the present invention, when the repellent is used to prevent and control the spruce bark beetle in a large area in the forest, the application preferably includes directly hanging the repellent slow-release bag on the spruce trunk in the forest with a thumbtack. The number of suspensions per mu is 5-8, more preferably 6; the distance between every two repellent slow-release bags is preferably 40-60m, more preferably 50m. In the present invention, the repelli...

Embodiment 1

[0035] Preparation of slow-release bags of spruce bark beetle repellent repellant: Myrcene purchased from the market is used, and the chemical purity and stereoisomer purity are both greater than 95%. Mix 4g of myrcene, 5mg of butyl hydroxyanisole and 5mg of 2-hydroxy-4-methoxybenzophenone to prepare a repellent. Then take the black polyethylene plastic bag purchased on the market as the carrier, use the prepared repellent, transfer and drop the repellent into the absorbent cotton in the black polyethylene plastic bag carrier with a pipette, and make a spruce eight Tooth beetle repellent slow release bag.

[0036]The preparation of lures for the aggregation pheromone attractant of the spruce octopus beetle: mix 4g of 2-methyl-3-butene-2 ​​alcohol, 40mg of S-cis-verbenaenol, 5mg of butylhydroxyanisole and Mix 5mg of 2-hydroxy-4-methoxybenzophenone evenly, add it into the slow-release bag made of polyvinyl chloride plastic cloth with a pipette, seal it, and obtain the pheromone...

Embodiment 2

[0044] The active substance in the slow-release bags of the spruce dectus beetle repellant is nonanal, and the dosage of each slow-release bag is 4 g, and the rest are the same as in Example 1. see results figure 1 .

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Abstract

The invention provides an application of a semiochemical substance in repelling the spruce bark beetle and belongs to the technical field of biological control of the spruce bark beetle. The semiochemical substance includes myrcene and / or nonanal. In the present invention, the semiochemical substances include myrcene and / or nonanal, which have a repelling effect on the spruce beetle.

Description

technical field [0001] The invention belongs to the technical field of spruce octodentate beetle biological control, and in particular relates to the application of semiochemical substances in repelling spruce octodentate beetle, a repellant slow-release bag and the application thereof. Background technique [0002] The spruce beetle (Ips typographus L.) is the most serious stem borer pest in the spruce forests of Eurasia. Natural pests continue to invade the damaged wood, thereby accelerating the death rate of the host. With the change of global climate, the phenology and chemical properties of the spruce bark beetle have undergone great changes, the population expansion is obvious, and the damage is becoming more and more serious. When the population density is high, it can even invade healthy spruce and cause death. The fir beetle has caused irreversible damage to the natural spruce forests in my country, leading to serious and lasting economic and ecological losses in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N27/00A01N35/02A01P17/00A01M29/12A01M1/02
CPCA01M1/02A01M29/12A01N27/00A01N35/02
Inventor 孔祥波方加兴张苏芳刘福张真
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY