Pinus yunnanensis bark beetle-resisting mingled forest mode rapid screening method

A screening method, the technology of the pine beetle, applied in the fields of application, cultivation, agriculture, etc., can solve the problem of no disease and pest resistance mixed forest construction technology, can not answer new afforestation and serious damage of diseases and insect pests, and has no early prediction of mixed forest disease and insect resistance ability methods and other issues to achieve the effect of protecting biodiversity

Inactive Publication Date: 2011-11-16
SOUTHWEST FORESTRY UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since there is no specific construction technology for pest-resistant mixed forests, most domestic research is to investigate the control effect of existing mixed forest systems on pests, and there is no early prediction method for the resistance of mixed forests to diseases and insect pests, which cannot answer new afforestation and serious damage from pests and diseases. Forest stand transformation Any design target tree species and what kind of non-target tree species to match the insect resistance effect, what configuration ratio and mixed method to adopt to meet the pest control requirements, etc.

Method used

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  • Pinus yunnanensis bark beetle-resisting mingled forest mode rapid screening method
  • Pinus yunnanensis bark beetle-resisting mingled forest mode rapid screening method
  • Pinus yunnanensis bark beetle-resisting mingled forest mode rapid screening method

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Embodiment Construction

[0031] (1) Use the "Y" type olfactometer to select the mixing ratio

[0032] The Yunnan pine beetle was collected from the Yunnan pine forest in Beishan Forest Farm, Yuxi City, Yunnan Province in April 2010. The damaged Yunnan pine trunk was sawed into 80 cm long sections and brought back to the laboratory. Place healthy Yunnan pine tree trunks, seal the two ends with wax to keep moisture, and raise them for later use after the adults emerge. Yunnan pine, Tibetan cypress, camphor tree, Dianqinggang leaves (needles), branches.

[0033] Such as figure 1 , "Y" type olfactory instrument adapting arm length 20cm, inner diameter 4cm, test arm length 20cm, inner diameter 3cm, the angle between the two arms is 75°. The test arm is sequentially connected with an odor source bottle, an air humidifier, a glass rotameter, an activated carbon air filter device, and an air compressor, and the parts are connected with silicone tubes.

[0034] The pine needles of Yunnan and the leaves of T...

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Abstract

The invention discloses a pinus yunnanensis bark beetle-resisting mingled forest mode rapid screening method, and relates to a combined method for intergrowth of various forests. The method comprises the following steps of: selecting a mingled proportion by using a Y-shaped olfactometer, setting a replacement corresponding set of pinus yunnanensis needles and non-host leaves on a reaction arm (n is not greater than 10) of the Y-shaped olfactometer, and then selecting different mingled modes by using branch frames, wherein Cupressus torulosa, camphor trees and Cyclobalanopsis glaucoides are used as the non-host leaves and branches for testing. As a result, the inter-plant mingled forest culture of the pinus yunnanensis and the non-host leaves is better, and the non-host leaves appropriately account for 30%-50%. The method has the advantage of less material consumption and can rapidly and conveniently forecast the disease and inset-resisting mingled forest modes.

Description

technical field [0001] The invention belongs to forestry protection, and relates to a combined method for the symbiosis of various trees. Background technique [0002] Pine yunnanensis is the main tree species in Yunnan and Sichuan, and it is facing the serious threat of the pine beetle. Large areas of pure forests are killed by the beetle. The main control measures include cleaning the beetle wood, pesticide control, biological control, and bark beetle. Aggregate pheromones for lure and silvicultural measures. Mixed forest is one of the important ecological control technologies generally recognized at home and abroad. Compared with artificial pure forest, mixed forest has incomparable advantages in terms of forest ecosystem stability, forest soil fertility improvement, water and soil conservation, restoration of degraded ecosystem, forest disease and insect pest control, etc. Advantage. However, most studies on mixed forest models are not designed for pest resistance, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00
Inventor 岳锋杨斌
Owner SOUTHWEST FORESTRY UNIVERSITY
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