CN212660872U

CN212660872U - South Asia fruit fly larva parasitic wasp autosegregation device

Info

Publication number: CN212660872U
Application number: CN202020146637.2U
Authority: CN
Inventors: 敖国富; 元维伟; 石爽; 季清娥; 林嘉; 鲁宁峰; 刘旭祥; 郑敏琳; 杨建全
Original assignee: Fujian Agriculture and Forestry University
Current assignee: Fujian Agriculture and Forestry University
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2021-03-09
Anticipated expiration: 2030-01-23

Abstract

The utility model provides an automatic separation device for parasitic wasps of south Asia fruit fly larvae, which comprises a containing box and a separation box positioned at the upper part of the containing box, the containing box and the separating box are light-tight, a moisturizing layer for moisturizing is arranged at the bottom in the containing box, a water-containing fine sand layer is laid on the moisture-retaining layer, a first opening is formed in the top of the containing box, a first isolation net is arranged at the first opening, the hollow lower part in the separation box is connected with the top of the containing box, the top of the separation box is provided with a second opening, the second opening part has the second separation net, the clearance of second separation net is less than first separation net, the utility model discloses in the invention add not division board and carry the thing dish on the moisturizing layer, directly add to the moisturizing layer with fine sand, delay the speed of moisture transpiration, increase the effect of moisturizing, thereby utilize the separation net in different apertures thereby satisfy the separation to south Asia trypetid and parasitic wasp.

Description

South Asia fruit fly larva parasitic wasp autosegregation device

Technical Field

The utility model relates to a south Asia fruit fly larva parasitic wasp autosegregation device.

Background

Wild south Asia fruit fly larva parasitic wasps domesticated and bred in a laboratory are restricted by parasitic rate, and a certain amount of south Asia fruit flies eclose in the eclosion process of the parasitic wasps, so that the parasitic wasps and the south Asia fruit flies are mixed in a rearing cage, if the fruit flies are not caught out of the cage, the fruit flies compete with the parasitic wasps for nutrition in the cage, and the parasitic wasps are repelled when eating and parasitizing. The prior technical proposal mainly comprises the following steps

1) The parasitic wasp horizontal releaser disclosed in the Chinese patent publication No. CN202635431U has 1 layer of gauze isolation at the bottom, and the fruit flies with small volume are easy to extrude out of the gauze just after emergence of part of the parasitic wasp, escape to the field, and reduce the biological control effect of the fruit flies.

2) The fruit fly parasitic wasp release device disclosed in chinese patent publication No. CN206866409U only uses 1 layer of isolation gauze, during the raising process of fruit flies, the fruit fly pupae are not uniform in size, and the small-sized fruit fly pupae will extrude out of the mesh after emerging, compete with parasitic wasps in the release device for nutrition, and simultaneously affect the parasitic wasps to take food and parasitic hosts, and the effect is not good.

3) The moisturizing layer described in chinese patent publication nos. CN206866409U and CN205390039U is sponge, dehydrated cotton or other water-absorbing material, on which a separation tray and a carrying tray are placed, for example, when the collected trypetid pupae is placed in the carrying tray, the emergence of parasitic wasps does not simulate passing through the soil, and the ability of the parasitic wasps to adapt to the external environment may be reduced. In addition, the high ambient temperature can lead to the rapid volatilization of water in the water-absorbing substance in the releasing device, which leads to the influence of the high humidity on the eclosion rate and eclosion speed of parasitic bee pupae. And the emergence efficiency of parasitic bees at the later stage of emergence is reduced due to insufficient humidity.

In addition, when the separation of the citrus fruit fly and part of parasitic wasps of citrus fruit fly larvae is realized in a laboratory, the citrus fruit fly which is eclosion firstly is placed at the temperature of 25-28 ℃ and is treated at the temperature of-4 ℃ together with pupae, the living fruit fly imago is frozen and stunned, and finally the parasitic pupae and the eclosion fruit fly are separated. During sudden and large-scale cooling treatment, the fruit fly adults are often not frozen and stunned due to too short freezing treatment time, the separation effect is influenced, the eclosion after the parasitic pupae is inevitably influenced due to too long freezing time, and the operation process is complicated.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is after using the device, indoor feeding south Asia fruit fly larva parasitic wasp need not the manual work and catches south Asia fruit fly from the cage, realizes the separation of south Asia fruit fly and parasitic wasp.

The utility model discloses a concrete implementation scheme is: south Asia trypetid larva parasitic wasp autosegregation device, including holding the box and being located the separation box that holds box upper portion, it is light-tight to hold box and separation box, it places the moisturizing layer that is used for moisturizing to hold the box bottom in, moisturizing layer upper berth is equipped with aqueous fine sand layer, the top that holds the box has first opening, and first opening part has first separation net, separation box internal hollow lower part with hold the box top and be connected and separation box top and be equipped with the second opening, the second opening part has second separation net, the clearance of second separation net is less than first separation net.

Further, the moisturizing layer is a hydrous sponge, the hydrous fine sand layer comprises a first fine sand layer with the water content of 3%, a second fine sand layer with the water content of 3% and a third fine sand layer with the water content of 1% -2% from top to bottom, and parasitic bee pupas of the bactrocera minax larvae are located in the second fine sand layer.

Further, the first isolation net is 80 meshes, and the second isolation net is 90 meshes.

Furthermore, the thickness of the third fine sand layer is 4.0-7.0cm, and the thickness of the first fine sand layer is 1.0-1.5 cm.

Further, the area of the bottom surface of the separation box is smaller than or equal to the area of the upper surface of the separation box.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses in the invention does not add division board and carry the thing dish on moisturizing layer, directly adds to moisturizing layer with fine sand, delays the speed of moisture transpiration, increases the effect of moisturizing, thereby utilizes the separation net in different apertures to realize the separation to south Asia fruit fly and parasitic wasp.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the automatic separation device for parasitic wasps from south asian fruit fly larvae comprises a containing box 10 and a separation box 20 located on the upper portion of the containing box, wherein the containing box 10 and the separation box 20 are opaque, a moisture preservation layer 310 for preserving moisture is placed at the bottom of the containing box, a moisture-containing fine sand layer is laid on the moisture preservation layer, a first opening 110 is formed in the top of the containing box, a first isolation net 111 is arranged at the first opening, the hollow lower portion of the interior of the separation box 20 is connected with the top of the containing box, a second opening 210 is formed in the top of the separation box 20, a second isolation net 211 is arranged at the second opening, and the gap of the second isolation net is smaller than that of the first isolation net.

The light-tight property of the containing box 10 and the separating box 20 can be achieved by using a light-tight material or by covering the outer surfaces of the containing box 10 and the separating box 20 with a light-tight cloth curtain or plastic film for shielding.

In this embodiment, the moisture retention layer is a water-containing sponge, the water-containing fine sand layer includes a first fine sand layer 320 with a water content of 3%, a second fine sand layer 330 with a water content of 3%, a third fine sand layer 340 with a water content of 1% -2% from top to bottom, and the parasitic wasp pupae of the bactrocera minax larvae are located in the second fine sand layer 330.

In this embodiment, the first isolation net is 80 meshes, and the second isolation net is 90 meshes.

In this embodiment, the thickness of the third fine sand layer is 4.0-7.0cm, and the thickness of the first fine sand layer is 1.0-1.5 cm.

In this embodiment, the area of the bottom surface of the separation box is smaller than or equal to the area of the upper surface of the separation box.

In this embodiment, the containing box 10 and the separating box 20 are connected by means of a buckle, a magnetic attraction, an adhesive, and the like, and the inner space of the separating box 20 is communicated with the containing box 10 through the first opening 110.

In this embodiment, the water-absorbing nano sponge is placed at the bottom of the containing box 10 to serve as a moisture-keeping layer 310 to keep moisture of the fine sand layer on the upper part, a third fine sand layer with a water content of 1% -2% is added to the moisture-keeping layer 310, the collected pupa and the fine sand with a water content of 3% are mixed and then poured onto the third fine sand layer with a water content of 1% -2% to serve as a second fine sand layer, and finally the first fine sand layer with a water content of 3% is covered by a cover of 0.5-1.0 cm.

When the device is used, the containing box 10 and the separating box 20 are connected and then placed in a rearing cage, and the south Asia fruit flies and the parasitic wasp adults have phototaxis and are shaded by the containing box 10 and the separating box 20, so that the adults can crawl towards the direction of the shading-free isolation net after eclosion. And after the parasitic wasp feathers, the parasitic wasp climbs out of the gauze mesh, so that automatic separation is realized. The south asian fruit flies which are first eclosion freely move in the pupa containing box 10, but because the volume is large and the south asian fruit flies cannot pass through the first isolation net 111, even if a small part of newly eclosion and small-volume south asian fruit fly adults extrude the first isolation net, the south asian fruit flies are still blocked by the second isolation net 211 and die after being lack of water and feed for 48 hours. When the south Asia fruit fly larva parasitic wasp eclosion, the parasitic wasp can freely pass through the first isolation net 111 and the second isolation net 211 to enter the rearing cage.

The separating box 20 is used as a buffering device for escape of the south Asia fruit fly imagoes, the bottom of the device is hollow, and the separating box is nested outside the top cover of the containing box 10 or above the top cover, the area of the separating box is smaller than or equal to that of the top cover, and the separating box and the top cover of the containing box 10 are fixed in an adhesion mode through a buckle, a magnetic attraction mode, a bonding mode and the like. The separation box 20 is smaller in volume and height than the containing box 10 to reduce the residence time of parasitic bees in the separation box 20. The separation case 20 is provided with the same top cover as the containing case 10.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The device is characterized by comprising a containing box and a separating box located on the upper portion of the containing box, wherein the containing box and the separating box are light-tight, a moisturizing layer used for moisturizing is placed at the bottom of the containing box, a water-containing fine sand layer is laid on the moisturizing layer, a first opening is formed in the top of the containing box, a first isolation net is arranged at the first opening, the hollow lower portion of the interior of the separating box is connected with the top of the containing box, a second opening is formed in the top of the separating box, a second isolation net is arranged at the second opening, and the gap of the second isolation net is smaller than that of the first isolation net.

2. The device for automatically separating the parasitic wasps on south asian fruit fly larvae, according to claim 1, wherein the moisture-keeping layer is a water-containing sponge, the water-containing fine sand layer comprises a first fine sand layer, a second fine sand layer and a third fine sand layer from top to bottom, and the parasitic wasp pupae on south asian fruit fly larvae is positioned in the second fine sand layer.

3. The device for automatically separating the parasitic wasps on south Asia fruit fly larvae according to claim 1, wherein the first separation net is 80 mesh and the second separation net is 90 mesh.

4. The automatic south Asia fruit fly larvae parasitoid wasp separation device of claim 2 wherein said third grit layer is 4.0-7.0cm thick and said first grit layer is 1.0-1.5cm thick.

5. The device for automatically separating the parasitic wasps on south Asia fruit fly larvae according to claim 1, wherein the bottom surface area of the separation box is less than or equal to the upper surface area of the separation box.