CN206314440U - A kind of diamondback moth larvae traps the device pupated - Google Patents

Abstract

The utility model relates to the technical field of the trapping and pupating link in the large-scale raising of Lepidoptera larvae, in particular to a device for trapping and pupating the diamondback moth larvae. The device comprises: an insect raising box and a trapping plate arranged in the insect raising box, the top of the insect raising box is open, the trapping plate is placed on the bottom plate of the insect raising box, the trapping The board is formed by stacking multiple pieces of corrugated cardboard, and the middle part of each piece of corrugated cardboard is hollowed out to form a round hole of equal diameter, so that the middle part of the trapping board forms a cylindrical hole that penetrates up and down, and the top of the cylindrical hole covers There is a gauze, and the four side walls of the trapping plate are all covered with black cotton cloth. The utility model is simple to manufacture, convenient to disassemble, and has strong practicability; it has no damage to the larvae and pupae of the diamondback moth, improves the survival rate of the pupae of the diamondback moth and the eclosion rate of adults, facilitates cocooning and pupation of the diamondback moth and the collection of adults, and improves Work efficiency; easy to move and carry, strong operability; low price, and reusable.

Description

A device for trapping and pupating diamondback moth larvae

technical field

The utility model relates to the technical field of the trapping and pupating link in the large-scale raising of Lepidoptera larvae, in particular to a device for trapping and pupating the diamondback moth larvae.

Background technique

Plutella xylostella is a worldwide pest that mainly harms cruciferous vegetables such as cabbage, cabbage, and rapeseed. With the characteristics of strong reproductive ability, short life cycle, and strong ecological adaptability, it has become a model insect for the study of insect biology. Plutella xylostella is a complete metamorphosis insect, which is divided into four stages: egg, larva, pupa, and adult. Similar to most Lepidoptera insects, mature larvae of diamondback moth prefer to cocoon and pupate in cracks in the bark of tree trunks. The rearing of Plutella xylostella in the laboratory is generally carried out in rearing boxes or cages. Plutella xylostella lays large eggs and has a short development period. Under suitable temperature, one generation can be completed in 10 days. Therefore, in the conventional rearing method, due to the irregular development period of the diamondback moth in the same rearing box, the overlapping of generations is serious, and the mature larvae are easy to cocoon and pupate on the inner wall and upper cover of the rearing box, which is not conducive to the raising and development of the larvae. Collection of adults. Simultaneously, in the process of collecting chrysalis, frequent manipulation of the feeding box may easily cause damage to the chrysalis. Therefore, selecting a device to lure the mature larvae of diamondback moth to concentrate on cocooning and pupation not only facilitates the collection of pupae and centralized preservation, but also greatly improves the feeding efficiency of diamondback moth and reduces the workload.

Utility model content

(1) Technical problems to be solved

The technical problem to be solved by the utility model is to provide a device that is easy to operate, meets the needs of experiments, and is suitable for cocooning and pupation of lepidopteran insects, especially diamondback moth larvae, so as to facilitate the collection of diamondback moth cocooning, pupation and adults ,Improve work efficiency.

(2) Technical solution

In order to solve the above technical problems, the utility model provides a device for trapping and pupating the diamondback moth larvae, which includes an insect raising box and a trapping plate arranged in the insect raising box, and the top of the insect raising box is open , the trapping board is placed on the bottom plate of the insect breeding box, the trapping board is formed by stacking multiple pieces of corrugated cardboard, and the middle part of each piece of corrugated cardboard is hollowed out into a round hole of equal diameter, so that all A cylindrical hole through up and down is formed in the middle of the trapping plate, the top of the cylindrical hole is covered with gauze, and the four side walls of the trapping plate are covered with black cotton cloth.

Wherein, the corrugated cardboard is a single-sided corrugated cardboard, and the corrugated cardboard faces the bottom plate of the insect breeding box.

Preferably, each piece of corrugated cardboard is bound together by cotton thread or rubber band to form a square trapping board.

Wherein, the corrugated cardboard is in the shape of a cuboid, with a length of 10-15 cm, a width of 10-15 cm, and a thickness of 0.5-1.5 cm.

Wherein, the diameter of the cylindrical hole (that is, the diameter of any bottom surface thereof) is 5-8 cm.

Preferably, the black cotton cloth is fixed on the side wall of the trapping plate by winding cotton threads or rubber bands to prevent the cotton cloth from falling off.

Preferably, the gauze is bonded to the top edge of the cylindrical hole to prevent diamondback moth larvae from escaping while increasing the light transmittance of the breeding room.

Preferably, the gauze is 100 mesh.

Wherein, the material of the corrugated cardboard is paper, plastic or other materials.

Preferably, the shape of the longitudinal section of the corrugated cardboard is wavy, prismatic, triangular or other shapes suitable for drilling and pupating of diamondback moths.

(3) Beneficial effects

The above-mentioned technical scheme of the utility model has the following beneficial effects:

1. This utility model utilizes the corrugated shape and structural characteristics of corrugated cardboard to attract larvae to cocoon and pupate; the cylindrical hole in the middle of the trapping plate forms a relatively closed breeding space with the insect rearing box and gauze, and the larvae crawl along the bottom cardboard. During the process, it drills into corrugated cardboard to cocoon and pupate; the superposition of corrugated cardboard creates more space suitable for larvae to cocoon.

2. Based on the characteristics of reverse phototaxis, the four walls of the trapping board are wrapped with black cotton cloth, which acts as a shading effect, attracts larvae to cocoon and pupate in the gaps of the corrugated cardboard, and improves the trapping efficiency.

3. The trapping and pupating device of the utility model can trap 100% of the pupae of Plutella xylostella larvae. When the upper gauze is not covered, the trapping and pupating rate can reach more than 90%, which greatly improves the efficiency of insect rearing. efficiency.

4. The trapping and pupating device of this utility model is composed of multiple pieces of corrugated cardboard superimposed, which is easy to disassemble. After the larvae have cocooned and pupated, the trapping board can be put into the eclosion cage as a whole, or placed separately after disassembly.

5. The device for trapping and pupating of the utility model has convenient material source, simple operation process, no damage to diamondback moth larvae and pupae, and improves the survival rate of diamondback moth pupae and the eclosion rate of adults.

6. The device for trapping and pupation of the utility model is convenient to obtain materials, simple to manufacture, and strong in practicability; easy to move and carry, strong in operability; low in price, and reusable.

Description of drawings

Fig. 1 is a schematic structural view of the single-sided corrugated cardboard described in the embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the trapping plate described in the embodiment of the present invention;

Fig. 3 is a top view of the trapping plate described in the embodiment of the present invention;

Among them, 1. Corrugated cardboard; 1-1, round hole; 1-2, corrugated paper; 2, rubber band; 3, cylindrical hole; 4, black cotton cloth; 5, artificial feed.

detailed description

The implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the present utility model, unless otherwise specified, the meaning of "multiple blocks" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer ", "Top" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific Orientation, construction and operation in a specific orientation, and therefore should not be construed as limiting the utility model.

As shown in Fig. 1, Fig. 2 and Fig. 3, the present embodiment provides a kind of device for trapping and pupating of diamondback moth larvae, which comprises an insect raising box (not shown in the figure) and is located in the described insect raising box The trapping plate, the top of the insect breeding box is open, and the trapping plate is placed on the bottom plate of the insect breeding box.

The trapping board is formed by stacking a plurality of cuboid single-sided corrugated cardboards 1 , and each piece of corrugated cardboard 1 is bound together by rubber bands 2 to form a square trapping board. The corrugated paper 1-2 of the corrugated cardboard 1 faces the bottom plate of the insect breeding box; the middle part of each piece of the corrugated cardboard 1 is hollowed out into circular holes 1-1 of equal diameter, so that the middle part of the trapping board forms an upper and lower Through cylindrical hole 3 . The bottom plate of the cylindrical hole 3 and the insect box forms a diamondback moth breeding room, and artificial feed 5 is placed in the breeding room.

The top of the cylindrical hole 3 is covered with a 100-mesh gauze, and the gauze is bonded to the top edge of the cylindrical hole. The four side walls of the trapping plate are all covered with black cotton cloth 4, and the black cotton cloth 4 is fixed on the side walls of the trapping plate by winding rubber bands.

Wherein, the length of the corrugated cardboard 1 is 15 cm, the width is 10 cm, and the thickness is 1 cm; the diameter of the cylindrical hole 3 is 5-8 cm. The material of the corrugated cardboard 1 is paper; the shape of the longitudinal section of the corrugated cardboard of the corrugated cardboard 1 is wavy.

Specific production and implementation methods:

Take a single-sided corrugated cardboard, hollow out the middle to form a round hole, stack multiple pieces of single-sided corrugated cardboard with the corrugated cardboard facing down, and bind the two ends of the corrugated cardboard with fine cotton threads or rubber bands to form a square trapping board; then Cover the four walls of the trapping board with black cotton cloth, and fix the black cotton cloth with fine cotton threads or rubber bands; place the trapping board in the insect raising box, and the cylindrical hole in the middle of the trapping board and the bottom plate of the insect raising box form a side dish Moth breeding room; select the fifth instar larvae and put it into the breeding room, and put into artificial feed, cover the trapping plate with 100 mesh gauze at last, and bond the top edge of the gauze and the cylindrical hole. After all the diamondback moth larvae have pupated, put the trapping plate into the eclosion cage and wait for eclosion.

The embodiments of the invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principle and practical application of the invention, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for particular purposes.

Claims (10)

1. A device for trapping and pupating Plutella xylostella larvae, characterized in that it comprises an insect-raising box and a trapping plate located in the insect-raising box, the top of the insect-raising box is open, and the trapping plate Placed on the bottom plate of the insect breeding box, the trapping board is formed by stacking multiple pieces of corrugated cardboard, and the middle part of each corrugated cardboard is hollowed out into a round hole of equal diameter, so that the middle part of the trapping board forms a A cylindrical hole penetrating up and down, the top of the cylindrical hole is covered with gauze, and the four side walls of the trapping plate are covered with black cotton cloth. 2 . The device according to claim 1 , wherein the corrugated cardboard is single-sided corrugated cardboard, and the corrugated cardboard faces the bottom plate of the insect breeding box. 3 . 3. The device according to claim 1, wherein each piece of corrugated cardboard is bound together by cotton thread or rubber band. 4. The device according to claim 1, wherein the corrugated cardboard is in the shape of a cuboid, with a length of 10-15 cm, a width of 10-15 cm, and a thickness of 0.5-1.5 cm. 5. The device according to claim 4, characterized in that the diameter of the cylindrical hole is 5-8 cm. 6. The device according to claim 1, characterized in that, the black cotton cloth is fixed on the side wall of the trapping plate by winding cotton thread or rubber band. 7. The device of claim 1, wherein the gauze is bonded to the top edge of the cylindrical hole. 8. The device according to claim 1, wherein the gauze is 100 mesh. 9. The device according to claim 1, wherein the material of the corrugated cardboard is paper or plastic. 10. The device according to claim 1, characterized in that the shape of the longitudinal section of the corrugated cardboard is wavy, prismatic, triangular or other shapes suitable for drilling and pupating of diamondback moths.