Comprehensive control command device for bursaphelenchus xylophilus

Abstract

The invention discloses a comprehensive control command device for bursaphelenchus xylophilus. The comprehensive control command device comprises a control cylinder assembly, wherein a sealing cover assembly is arranged at the bottom of the control cylinder assembly in a threaded manner, a cohesion assembly is fixedly arranged at the top of the control cylinder assembly, a clamping assembly is fixedly arranged in the cohesion assembly in a cohesion manner, a table-type tightening ring plate at the top of the clamping assembly moves up and down on an external thread pipe through dual-directionthreaded rotation of the external thread pipe, a first arched clamping plate and a second arched clamping plate perform approaching for clamping and separation for coming off through the up-and-down movement of the table-type tightening ring plate, a movable ball head at the bottom of the clamping assembly is movably connected to the inner part of the cohesion assembly through a movable ball groove, a second cohesion plate is in penetrating and sliding connection with a cohesion propping rod on the first cohesion plate through a penetrating small hole, and the second cohesion plate and the first cohesion plate are in cohesion, propping and fixing connection through threaded propping between a propping nut and a cohesion propping rod.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of pine wood nematode disease, and in particular relates to a command device for comprehensive prevention and control of pine wood nematode disease. Background technique [0002] Pine wood nematode is the largest foreign invasive species in my country's forestry industry. Monochamus alternatus is its main transmission medium in China. After pine trees are infected with pine wood nematode disease, it leads to the destruction and death of resin duct parenchyma cells and epithelial cells, causing plant damage. Water loss, reduced transpiration, and sharp reduction and cessation of resin secretion will cause huge economic losses to forestry resources. Therefore, to control the spread of pine wood nematode disease, the key is to control the spread of pine wood nematode disease. The number of populations in between. [0003] The prior art has the following problems: hanging traps in woodla...

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Problems solved by technology

[0003] The prior art has the following problems: hanging traps in woodlands infected with pine wood nematode, and using attractants placed in the traps to trap and kill Monochamus alternata adults is one of the most commonly used and most effective control methods. The spread of the disease is of great significance, but the existing traps are likely to cause the escape of Monochamus alternatus, and when the existing traps are fixed, they are mostly fixed on pine trees by means of ropes or hooks. In this way, the ropes are easy to It falls off and is easy to corrode after long-term use. The hook method is prone to unreliable fixing. At the same time, these two fixing methods are easy to cause the trap to shake relative to the trunk of the pine tree when hanging, which leads to the trapping of pine trees. Cattle are inefficient

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