CN205813410U - A kind of double-deck hollow out spherical trichogramma bee-escape preventing and treating wet crop insect - Google Patents

Abstract

The utility model provides a double-layer hollow spherical Trichogramma repellent for preventing and controlling paddy field crop pests, which consists of an upper hemisphere and a lower hemisphere to form a hollow sphere; the inner layer of the lower hemisphere is a cylindrical cavity, and the inner layer of the cylindrical cavity There is a symmetrical gap on the upper edge; after the upper hemisphere is buckled with the lower hemisphere, the cylindrical cavity of the lower hemisphere is aligned with the inner wall of the upper hemisphere to form a hollow cavity as an egg chamber, and the gap forms a gap as a bee outlet; the lower hemisphere A circular rubber floating sheet that enhances the buoyancy is also inlaid outside the cylindrical cavity. The appearance of the bee release device adopts a spherical hollow double-layer structure, which can effectively reduce the impact of various unfavorable factors such as landing impact, rain, sun exposure, and rising ground temperature, while preventing eggs from being eaten by other insects in the field; suitable for drones Automatic and mechanized delivery can save manpower and material resources, so that natural enemy insects can be evenly, timely and effectively delivered to the field, improving work efficiency and control effect. After the bee release device is put in, the double-layer structure of the bee release device can be made of degradable materials, and will not cause secondary pollution to the environment after release.

Description

A double-layer hollow spherical Trichogramma repellent for controlling pests of paddy field crops

technical field

The utility model relates to a double-layer hollow spherical Trichogramma repellent device for preventing and controlling paddy field crop pests, which is suitable for pest control in paddy field environments by dropping drones, and belongs to the technical field of agricultural pest biological control.

Background technique

Trichogramma is a kind of egg-parasitic natural enemy insect with the most research, the widest application range and the longest application history in the biological control of Lepidoptera pests worldwide. In recent years, my country has become the country with the largest area of Trichogramma pest control in the world. In Northeast China, the area of corn borer control by Trichogramma pine caterpillar alone reaches more than 60 million mu every year.

Rice stem borer is the most important pest on rice. The control of rice stem borer mainly depends on chemical pesticides. Commonly used pesticides include fenitrothion, triazophos, dimehypo and cartap, etc. The methods of application are mostly Large-scale spraying is the main method, resulting in a large amount of pesticide loss. At the same time, it flows into rivers through drainage and seeps into the ground, killing fish, frogs and other beneficial organisms in large quantities, seriously threatening fishery production and human health. In order to reduce environmental pollution and harm to beneficial organisms, many high-efficiency and low-residue pesticides such as Longge and Kangkuan have also been promoted for the control of rice stem borer. However, due to the high cost of these pesticides and the equally complicated application methods, many Most farmers do not want to use it. According to reports, there are more than 100 kinds of natural enemies of rice borer, including eggs, larvae, pupae and adults. Parasitic natural enemies such as larvae and pupae have a better parasitic effect on the overwintering larvae, and have a certain effect on reducing the occurrence base of C. Reduce the number of contemporary pest larvae and reduce the pressure of control during the period of large occurrence. As early as the 1960s and 1970s, research and application work on the use of Trichogramma to control rice field pests such as rice stem borer was carried out in southern my country.

In recent years, with the unremitting efforts of scientific and technological workers, the breeding technology of Trichogramma with insects such as rice moth eggs as intermediate host eggs has gradually matured, which has promoted the rapid development of biological control technology of rice pests. However, due to the special environment of paddy fields, using Trichogramma to control rice stem borer, the requirements for release technology are quite different from those on land. Many natural enemy insect release devices used on land have been developed and applied successively, such as "Trichogramma Box-type Bee Releaser" (Patent No. CN2930274Y), "Small Egg Breeding Bee Releaser" (Patent No. Multi-purpose Natural Enemy Insect Mixed Release Device" (Patent No. CN203446381U), "Forestry Pest Natural Enemy Release Device" (Patent No. CN201617109U), "Aphid Braconus Automatic and Sustained Release Device" (Patent Application No. 201310750135.5). The design and use of these bee releasers are basically limited to the control of field crops or forestry pests, and special environments such as paddy fields have not been considered. When these bee releasers are used in paddy fields to release Trichogramma, they need to be suspended manually in the field, which is very inconvenient to operate. However, patented designs such as "a bee release device suitable for releasing parasitic bees to control rice pests in paddy fields" (patent No. ZL201320503873.5) and "a device suitable for releasing natural enemy insects in farmland to control pests" (patent It is used in paddy fields, but manual throwing is required. In practical application, as the scale of releasing bees increases year by year, a large number of people need to be organized for centralized release. There are many problems in the transportation and release of Trichogramma.

The use of drones to release natural enemy insects such as Trichogramma to control pests is a new technology that has emerged in recent years. The use of drones to release Trichogramma can be completed by a small number of professionals, so that natural enemy insects can be evenly, timely and effectively released to the field, thus changing the previous method of releasing Trichogramma by artificial flooding, saving manpower and material resources, and improving work. efficiency and control effectiveness. When implementing UAVs in paddy fields, it is necessary to use an appropriate carrier to hold the eggs, otherwise, the host eggs will fall into the water and cannot function; and the various Trichogramma bee releasers reported at present are all aimed at artificial The delivery design is not suitable for automatic delivery of drones. Based on the above background, this patent design proposes a Trichogramma bee-releasing device suitable for unmanned aerial vehicles.

Contents of the invention

The utility model provides a double-layer hollowed out spherical Trichogramma bee releasing device for preventing and controlling paddy field crop pests. The bee releasing device has a regular shape and is suitable for automatic mechanized delivery of drones; at the same time, after being released into the field, it can float on the water surface. It has the functions of rainproof, sunscreen, and insect feeding prevention.

A double-layer hollow spherical Trichogramma repellent for preventing and controlling paddy field crop pests described in the utility model is characterized in that:

The spherical structure is composed of the upper hemisphere and the lower hemisphere. The outer layers of the upper hemisphere and the lower hemisphere have cross-cut hollow pillars respectively; Cylindrical cavity, the upper edge of the cylindrical cavity has a symmetrical gap; after the upper hemisphere is buckled with the lower hemisphere, the cylindrical cavity of the lower hemisphere is aligned with the inner wall of the upper hemisphere to form a hollow cavity as an egg-carrying chamber. The gap forms a slit as a bee outlet; a circular rubber floating sheet that enhances buoyancy is inlaid outside the cylindrical cavity of the lower hemisphere.

When the device of the utility model is in use, the Trichogramma host eggs used for feeding are placed in the cavity of the egg-carrying chamber in the lower hemisphere, the floating sheet is nested on the wall of the cylindrical egg-carrying chamber, the upper hemisphere is covered, and the combined A good beekeeper is placed in the drone delivery vehicle. At an appropriate location in the open space of the field where pest control is required, operate the drone to enter the airspace for GPS automatic fixed-point delivery. After the new type of bee release device is put in, the double-layer hollow spherical bee release device will automatically adjust the bee outlet to face upward according to its own weight, and it can float stably by itself after falling into the water surface. The bee outlet is hidden inside the upper spherical cover, which can be easily Good protection from rain and sun, and the bottom of the egg-carrying chamber is immersed in water to avoid the adverse effects of high temperature on the host eggs. After the Trichogramma emerges, it crawls out through the bee mouth, flies out by itself and searches for pests.

The positive effect of the utility model lies in that the appearance of the bee release device adopts a spherical hollow double-layer structure, which can effectively reduce the influence of various unfavorable factors such as landing impact, rain, sun exposure and rising ground temperature, and at the same time prevent the eggs from being caught by other people in the field. Insect feeding; it is suitable for the automatic and mechanized delivery of drones, which can save manpower and material resources, so that natural enemy insects can be evenly, timely and effectively delivered to the field, improving work efficiency and control effects. After the bee release device is put in, the double-layer structure of the bee release device can be made of degradable materials, and will not cause secondary pollution to the environment after release.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is an overall sectional view of the utility model;

Fig. 3 is a schematic diagram of the upper hemisphere structure of the utility model;

Fig. 4 is a schematic diagram of the structure of the lower hemisphere of the utility model;

Fig. 5 is a schematic diagram of the structure of the lower hemisphere of the utility model inlaid floating sheet;

In the figure, 1. upper hemisphere; 2. lower hemisphere; 3. hollow pillar; 4. cylindrical cavity; 5. bee outlet; 6. floating piece; 7. bayonet.

detailed description

Further illustrate the utility model by accompanying drawing

As shown in Figures 1 to 4, the utility model consists of an upper hemisphere 1 and a lower hemisphere 2 in a spherical structure, and the outer layers of the upper hemisphere 1 and the lower hemisphere 2 respectively have cross-cut hollow pillars 3; the upper hemisphere 1 and the lower hemisphere 2 A hollowed-out sphere is formed by buckling each bayonet 7; the inner layer of the lower hemisphere 2 is a cylindrical cavity 4, and a symmetrical gap is left on the upper edge of the cylindrical cavity 4; the upper hemisphere 1 and the lower hemisphere 2 are buckled together Finally, the cylindrical cavity 4 of the lower hemisphere 2 is aligned with the inner wall of the upper hemisphere 1 to form a hollow cavity as an egg-carrying chamber, and the gap forms a gap as the bee outlet 5; the cylindrical cavity 4 of the lower hemisphere 2 is also inlaid with a The annular rubber float 6 that strengthens buoyancy.

Test example 1

Release Trichogramma japonica and Trichogramma rice borer to control rice stem borer (year of major occurrence).

Place about 40 grains (about 2700 heads) of loose eggs of tussah silkworm eggs parasitized with Trichogramma japonica and about 700 grains (about 670 heads) of rice moth eggs parasitized with Trichogramma rice borer in the egg-carrying chamber of the present utility model, Align the upper and lower hemispheres and cover them, and then refill until the required amount of bee releaser is ready. Take the drone and the bee release device to the prevention and control site, and put an appropriate amount of the bee release device into the drone delivery device. During the implementation of control, the amount of Trichogramma per mu is 30,000 (24,000 Trichogramma japonica, 6,000 Trichogramma rice borer), and the distribution is divided into 3 times, with an interval of 5 days, 10,000 each time. After the drone takes off, it moves 8 meters inward along the edge of the field, and then extends 8 meters inward along the head of the field. This is positioned as the first drop point, and a bee releaser is dropped; after that, it continues to fly inward along a straight line, every 15 One meter is a drop point, and one bee releaser is put in; after the UAV flies to the other end of the paddy field, it flies 15 meters across the field ridge, turns back, flies in a straight line again, and continues to put in the same way as above; the UAV follows this After the "bow-shaped" trajectory completes the delivery of the entire paddy field plot, the first delivery ends. Afterwards, the second and third delivery were carried out at intervals of 5 days.

Test example 2

Release the Trichogramma pine caterpillar to control the rice field stem borer (year of mild occurrence).

Place about 60 grains (about 5,000 heads) of tussah silkworm eggs parasitized with the pine caterpillar Trichogramma in the egg-carrying chamber of the utility model, align the upper and lower hemispheres and cover them, and then repeatedly fill them until the required amount of bee releasing device is ready . Take the drone and the bee release device to the prevention and control site, and put an appropriate amount of the bee release device into the drone delivery device. When implementing prevention and control, the amount of Trichogramma per mu is 20,000, which is divided into 2 releases, once every 5 days, and 10,000 each time. After the drone takes off, it moves 8 meters inward along the edge of the field, and then extends 8 meters inward along the head of the field. This is positioned as the first drop point, and a bee releaser is dropped; after that, it continues to fly inward along a straight line, every 15 One meter is a drop point, and one bee releaser is put in; after the UAV flies to the other end of the paddy field, it flies 15 meters across the field ridge, turns back, flies in a straight line again, and continues to put in the same way as above; the UAV follows this After the "bow-shaped" trajectory completes the delivery of the entire paddy field plot, the first delivery ends. After that, the second delivery will be carried out at an interval of 5 days.

Claims (1)

1. the double-deck hollow out spherical trichogramma bee-escape preventing and treating wet crop insect, it is characterised in that:

The outer layer being made up of chondritic, episphere and lower semisphere episphere and lower semisphere has the hollow out of decussation to prop up respectively Post；Episphere and lower semisphere fasten the spheroid forming a hollow out by respective bayonet socket；The internal layer of lower semisphere is cylindrical empty Chamber, the gap of symmetry is left on the upper edge of cylindrical cavity；After episphere fastens with lower semisphere, the cylindrical cavity of lower semisphere is with upper After hemisphere aligning inner, composition hollow cavity is as carrying ooecium, and gap forms gap as going out honeybee mouth；The cylinder of lower semisphere Also inlay an annular rubber strengthening floating force outside cavity and float sheet.