A device for luring ladybugs to lay eggs
A technology for trapping Coccinellus chinensis and Coccinellidae, applied in animal husbandry and other directions, can solve the problems of lack of mature system methods, limited research work, limited release applications, etc., to improve the trapping effect, improve the trapping effect, and improve the The effect of recovery
Inactive Publication Date: 2021-10-26
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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Problems solved by technology
[0004] Among the existing indoor artificial breeding methods of seven-spot ladybug, there is no mature system method, which can enable the seven-spot ladybug to reproduce stably and maintain good traits.
In the current method, there are always problems that the seven-star ladybug can complete the life cycle, but the fecundity is not strong, the research on the method of laying eggs is lacking, and a large number of subculture cannot be realized.
The test insects of the seven-spot ladybug rely on field collection, and there is no stable source of artificial continuous multi-generation breeding, which limits its research work and limits its release and application in the field as a natural enemy insect
Method used
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Embodiment 1-6
[0044] In the following examples of the present invention, the lure cores (seeing table 1 below) of different trapping materials and trapping substrates are selected for use respectively, utilize figure 1 The trap shown is for egg-laying trapping of ladybugs. The trapping device is placed in the insect cage of 50 pairs of seven-spot ladybug adults after eclosion is housed, flush with the ground, and the food of the ladybugs is cleaned up.
[0045] After 24 hours, take out the egg-laying carrier placed at the bottom of the insect cage, cut off the PE bag with the egg mass attached to it with scissors, put it in a petri dish with filter paper, add water to keep it moist, and store it at 25°C and a relative humidity of 60-80%. Under culture hatching, count the quantity of the ladybug ovum on the egg-laying carrier, record statistical result in following table 1.
[0046] The number of eggs laid by ladybugs in the embodiment of table 1
[0047]
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The invention belongs to the technical field of insect cultivation, and in particular relates to a device for luring ladybugs to lay eggs. The device for trapping the seven-star ladybug to lay eggs described in the present invention uses the pea seedlings planted with sufficient Prunus pea as the trapping material, utilizes the tropism of the seven-star ladybug to the aphids, and mixes the seven-star ladybug with the sufficient pea prunus Put the pea seedlings of the tail aphid in the spawning container for trapping and laying eggs, which has obvious trapping effect, and can lure the seven-star ladybugs together, which is conducive to their aggregation and laying eggs; and the smooth one with a high number of laying eggs The black PE bag with a thickness of 0.1‑0.2mm is the egg carrier, which effectively improves the egg laying rate and recovery rate of the seven-spot ladybug, and effectively solves the problem of low egg production and egg recovery rate of the seven-spot ladybug. It plays an important role in population reproduction.
Description
technical field [0001] The invention belongs to the technical field of insect cultivation, and in particular relates to a device for luring ladybugs to lay eggs. Background technique [0002] Aphids are extremely harmful pests in agriculture, causing irreversible damage to plants and the environment, and have caused considerable disasters in both greenhouses and fields. At present, the control of aphids is mainly based on pesticide control. Although the effect is remarkable, it inevitably causes great chemical pollution due to excessive use of chemical pesticides, causing secondary damage. [0003] Coccinella septempunctata L. is one of the dominant natural enemies of aphids. Coccinella septempunctata L. belongs to the order Coleoptera and the family Coccinellidae. It is an important predatory natural enemy of aphids on major crops such as wheat, cotton, oilseeds and vegetables. Research at home and abroad has proved that the use of seven-star ladybug to control aphids is a...
Claims
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IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 周仙红夏小菊庄乾营张安盛门兴元李丽莉张思聪于毅
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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