Cocoon collecting device for lateral guinea manilensis

Abstract

The cocoon collecting device comprises a feeding cylinder with an opening in the top, a cocoon collecting gauze element of a similar conical structure is arranged in the feeding cylinder, the large end of the cocoon collecting gauze element is arranged upwards, the small end of the cocoon collecting gauze element is arranged downwards, the large end is fixed to the opening of the feeding cylinder, a culture dish is arranged at the bottom in the feeding cylinder, and the culture dish is arranged in the feeding cylinder. The small end of the cocoon collecting gauze is in contact with the surface of the culture dish, and a hole sealing gauze is further arranged above the top end of the cocoon collecting gauze to shield the cocoon collecting gauze. By observing the habits of the parasitized noctuid larvae, it is found that the parasitized noctuid larvae have the habits of tending to climb upwards on net-shaped objects such as a silk screen, the cocoon collecting device is designed based on the habits, cocooning of the cocoon bees is more concentrated, the cocoon collecting difficulty is effectively reduced, and the cocoon collecting efficiency is improved. And the top of the cocoon collecting gauze can be shielded by the hole sealing gauze, so that the air permeability in the cylinder is kept, and meanwhile, the noctuidae larvae are prevented from climbing out of the feeding cylinder. And the hole sealing gauze element is fixed on the cover, so that the hole sealing gauze element is convenient to fix.

Description

Technical Field

[0001] The utility model relates to a cocoon collecting device, in particular to a cocoon collecting device for Manila cocoon wasps. Background Art

[0002] The Manila side groove braconid is a monoendoparasitic wasp of the larvae of the Noctuidae family of the order Hymenoptera. It can parasitize a variety of Noctuidae pests in agricultural production, such as the Spodoptera litura that harms tobacco crops, the Fall Armyworm that harms corn, and the Beet Armyworm that harms beets. It is an important parasitic natural enemy in biological control.

[0003] At present, the cocoon collection method of the Manila Side Groove Braconid Wasp is not perfect enough. The existing method of cocoon collection is that when the noctuid larvae are parasitized by the Manila Side Groove Braconid Wasp in the parasitism box, the parasitized larvae will climb around, causing the cocoons made by the bees to be scattered in the parasitism box, which is particularly troublesome to collect. Summary of the invention

[0004] The utility model aims to provide a cocoon collecting device for Manila side groove braconid wasps. The cocoon collecting device is provided with a cocoon collecting filter gauze in a cylinder according to the habit of parasitized noctuid larvae to climb upward on meshes such as silk nets, so as to facilitate the collection of cocoons.

[0005] The technical solution of the utility model is a cocoon collecting device for Manila side groove bracone, comprising a feeding cylinder with an opening at the top, a cocoon collecting gauze with a similar cone-shaped structure installed in the feeding cylinder, the cocoon collecting gauze is arranged with its big end facing upward and its small end facing downward, wherein the big end is fixed at the opening of the feeding cylinder, a culture dish is arranged at the bottom of the feeding cylinder, the small end of the cocoon collecting gauze contacts with the surface of the culture dish, and a sealing gauze is also arranged above the top of the cocoon collecting gauze to cover it.

[0006] In the aforementioned cocoon collecting device for Manila side groove bracone, the top surface of the breeding cylinder is provided with an annular clamping groove, and the clamping ring presses the large end of the cocoon collecting gauze into the annular clamping groove to fix it.

[0007] In the aforementioned cocoon collecting device for Manila Parasitinae, the surface of the clamp ring is covered with an elastic material layer.

[0008] In the aforementioned cocoon collecting device for Manila side groove bracone, the depth of the annular groove is 1 / 2 of the height of the clamping ring.

[0009] In the aforementioned cocoon collecting device for Manila side groove bracone, the sealing mesh is bonded and fixed to the surface of the cover, and the mesh size of the sealing mesh is at least 200 meshes.

[0010] In the aforementioned cocoon collecting device for Manila parasitoids, the cover is threadedly connected to the open end of the breeding cylinder.

[0011] In the aforementioned cocoon collecting device for Manila side groove bracone, the culture dish is adhesively fixed in the middle of the bottom of the breeding cylinder.

[0012] In the aforementioned cocoon collecting device for Paralichthys manilaensis, the breeding cylinder is a transparent plastic cylinder.

[0013] Beneficial effects of the utility model: Compared with the prior art, we have observed the habits of parasitized noctuid larvae and found that the parasitized noctuid larvae have a tendency to climb upwards on meshes such as silk screens. Based on this, the cocoon collecting device of the utility model is designed. By setting a naturally drooping cocoon collecting gauze in the feeding cylinder, the Noctuidae larvae will crawl around after being parasitized by the Manila side groove cocoon wasp, and tend to climb up the cocoon collecting gauze, which makes the cocoons of the cocoon wasp more concentrated, effectively reducing the difficulty of cocoon collection and improving the efficiency of cocoon collection. The sealing gauze can cover the top of the cocoon collecting gauze, maintaining the air permeability in the cylinder while preventing the Noctuidae larvae from crawling out of the feeding cylinder. The sealing gauze is fixed on the lid to facilitate the fixing of the sealing gauze.

[0014] In summary, the utility model has the advantages of simple structure, convenient use, concentrated cocoon formation, easy cocoon collection and high cocoon collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the snap ring;

[0017] Figure 3 This is a schematic diagram of the structure of the cover.

[0018] Figure numerals: 1-breeding cylinder, 2-cocoon collecting gauze, 3-culture dish, 4-lid, 5-air vent, 6-sealing gauze, 7-annular groove, 8-clamp ring, 9-elastic material layer. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] Embodiment of the utility model: a cocoon collecting device for Manila side groove braconid wasp, such as Figure 1-3 As shown, it includes a feeding cylinder 1 with a top opening, in which a cocoon collecting gauze 2 with a cone-like structure is installed, the large end of the cocoon collecting gauze 2 is arranged upward and the small end is arranged downward, wherein the large end is fixed at the opening of the feeding cylinder 1, a culture dish 3 is arranged at the bottom of the feeding cylinder 1, the small end of the cocoon collecting gauze 2 is in contact with the surface of the culture dish 3, and a sealing gauze 6 is also arranged above the top of the cocoon collecting gauze 2 to cover it.

[0021] During use, the noctuid larvae parasitized by Manila side groove braconid wasps are first placed in the rearing cylinder 1, and insect feed is placed on the culture dish 3, and then the cocoon collection gauze 2 is fixed on the rearing cylinder 1, and finally the sealing gauze 6 is placed above the cocoon collection gauze 2 and fixed to the top of the rearing cylinder 1. After being parasitized by Manila side groove braconid wasps, the Noctuidae larvae will crawl around, and the parasitized larvae will tend to climb up from the culture dish 3 to the cocoon collection gauze 2, so that the cocoons of the braconids are concentrated on the cocoon collection gauze 2. After the cocoon is formed, the sealing gauze 6 and the cocoon collection gauze 2 are removed, and the cocoons are collected, which effectively reduces the difficulty of cocoon collection and improves the efficiency of cocoon collection. The sealing gauze 6 can block the top of the cocoon collection gauze 2, and prevent the Noctuidae larvae from crawling out to the outside of the rearing cylinder 1 while maintaining the internal air permeability of the rearing cylinder 1.

[0022] The top surface of the feeding cylinder 1 is provided with an annular groove 7, and the clamping ring 8 presses the large end of the cocoon collecting gauze 2 into the annular groove 7 to fix it, and the annular groove 7 and the clamping ring 8 cooperate with each other to fix the large end of the cocoon collecting gauze 2 at the opening of the feeding cylinder 1.

[0023] The surface of the clamping ring 8 is covered with an elastic material layer 9 to increase the friction between the clamping ring 8 and the annular groove 7, thereby preventing the clamping ring 8 from escaping from the annular groove 7 and better fixing the cocoon collecting mesh 2.

[0024] The depth of the annular groove 7 is 1 / 2 of the height of the snap ring 8. After the snap ring 8 is inserted into the annular groove 7, part of the snap ring 8 is exposed. When the cocoon collecting net 2 needs to be removed, the exposed snap ring 8 can be quickly removed from the annular groove 7 by clamping it with a clip.

[0025] The sealing mesh 6 is bonded and fixed to the surface of the cover 4. The sealing mesh 6 can be fixed by simply fixing the cover 4 to the open end of the feeding cylinder 1, so that the cocoon collecting mesh 2 is blocked by the sealing mesh 6. The mesh size of the sealing mesh 6 is at least 200 meshes. If the mesh size is less than 200 meshes, the small larvae can crawl out of the mesh.

[0026] The cover 4 is threadedly connected to the open end of the breeding cylinder 1, which facilitates the fixed connection of the cover 4 to the open end of the breeding cylinder 1, thereby quickly fixing the sealing mesh 6.

[0027] The culture dish 3 is bonded and fixed in the middle of the bottom of the breeding cylinder 1 to prevent the culture dish 3 from being displaced during the movement of the breeding cylinder 1 .

[0028] The breeding cylinder 1 is a transparent plastic cylinder, which is convenient for observing the situation inside the breeding cylinder 1.

Claims

1. A cocoon collecting device for Manila side groove braconid wasp, characterized in that: The invention comprises a feeding cylinder (1) with a top opening, wherein a cocoon collecting gauze (2) having a similar cone-shaped structure is installed in the feeding cylinder (1), wherein the large end of the cocoon collecting gauze (2) is arranged upward and the small end is arranged downward, wherein the large end is fixed at the opening of the feeding cylinder (1), a culture dish (3) is arranged at the bottom of the feeding cylinder (1), the small end of the cocoon collecting gauze (2) is in contact with the surface of the culture dish (3), and a sealing gauze (6) is arranged above the top of the cocoon collecting gauze (2) to cover it.

2. The cocoon collecting device for the Manila striated braconid wasp according to claim 1, characterized in that: The top surface of the feeding cylinder (1) is provided with an annular groove (7), and a clamping ring (8) presses the large end of the cocoon collecting gauze net (2) into the annular groove (7) to fix it.

3. The cocoon collecting device for the Manila striated wasp according to claim 2, characterized in that: The surface of the clamping ring (8) is covered with an elastic material layer (9).

4. The cocoon collecting device for the Manila septoria according to claim 2, characterized in that: The depth of the annular groove (7) is 1 / 2 of the height of the clamping ring (8).

5. The cocoon collecting device for Parasitina manilaense according to claim 1, characterized in that: The sealing mesh (6) is bonded and fixed to the surface of the cover (4), and the mesh size of the sealing mesh (6) is at least 200 meshes.

6. The cocoon collecting device for Paralichthys manilaense according to claim 5, characterized in that: The cover (4) is threadedly connected to the open end of the breeding cylinder (1).

7. The cocoon collecting device for Paralichthys manilaense according to claim 1, characterized in that: The culture dish (3) is bonded and fixed in the middle of the bottom of the breeding cylinder (1).

8. The cocoon collecting device for Paralichthys manilaense according to claim 1, characterized in that: The breeding cylinder (1) is a transparent plastic cylinder.

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