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A device for trapping and killing damselfly larvae

The technology of damselfly larvae and container is applied in the field of trapping and killing devices for damselfly larvae in a loach seedling cultivation pool, which can solve the problems of low survival rate of loach seedlings and the like, and achieve a low price, universal material and strong operability. Effect

Inactive Publication Date: 2017-05-10
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many enemies of loach, such as frogs and tadpoles, aquatic insects and their larvae, snakes, birds, and carnivorous fish. However, the most inconspicuous damselfly larva is the chief culprit affecting the low survival rate of loach seedlings

Method used

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  • A device for trapping and killing damselfly larvae

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Embodiment Construction

[0020] like figure 1 The device shown is mainly used for trapping and killing damselfly larvae in loach seedling cultivation ponds, including a plastic pipe 1 as a trapping container, two wooden stakes 2 as supports, installed inside the trapping container and For killing the oil box 31 of device, the controller 32 that is connected with oil box, black light-shielding plastic film 4, the wooden bar 5 that is used to install energy-saving lamp, energy-saving lamp 6 and natural water hyacinth 7.

[0021] Wherein two stakes 2 are inserted into the bottom of the loach seedling cultivation pond simultaneously and fixed, then plastic tube 1 is clamped and fixed between two stakes, and plastic tube 1 selects nontoxic PVC plastic tube for use, and diameter 160mm and length are 1m, like this, It will not cause damage to the loach seedlings, but can also reduce the pressure on the stake and reduce costs; the plastic pipe 1 has a water inlet part of 41 cm and a water outlet part of 59 cm...

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Abstract

The invention discloses a trapping-killing apparatus for damselfly larvae. The trapping-killing apparatus comprises a support for supporting an entire structure in water, wherein the trapping-killing apparatus further comprises a trapping container, a light source and a killing device; the trapping container is mounted on the support; an opening is formed at the lower end of the trapping container; the upper end of the trapping container is closed; the light source is mounted at the upper end of the trapping container; the killing device is mounted inside the trapping container. When the trapping-killing apparatus is used, the support is mounted in a pool, the trapping container is partially immersed in water, damselfly larvae are trapped by the light source to enter the trapping container, and then are killed by the killing device; the trapping-killing apparatus for the damselfly larvae is applicable to trapping and killing the damselfly larvae in the pool under various conditions, is harmless to cultured fries, and has good trapping and killing effects for the damselfly larvae; additionally, the operation is simple and easy, and the cost is relatively low.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a device for trapping and killing damselfly larvae in loach seedling cultivation ponds. Background technique [0002] Loach Misgurnus anguillicaudatus (Cantor) is a small economic fish belonging to Cyprinidae, Loachidae, and the genus Loach. Because of its fresh and tender meat and rich nutrition, it enjoys the reputation of "ginseng in water" and is a delicacy loved by consumers at home and abroad. [0003] In recent years, under the stimulation of increasing market demand, there has been a craze for culturing loach all over the country. However, the loach breeding industry is limited by the insufficient supply of natural loach seedlings. Therefore, it is very urgent to carry out large-scale seedling production. But, so far, the cultivation of loach seedlings has not had a major breakthrough both at home and abroad, mainly because the survival rate of loach seedlings is relatively lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M1/04A01M1/02
Inventor 储张杰潘桂阳王振华卢美君吴榕阳占腾飞朱晶婷
Owner ZHEJIANG OCEAN UNIV
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