Method for feeding Micraspis discolor (Fabricius) by using mixed food of eggs of ephestia kuuhniella and rape pollen

Abstract

The invention discloses a method for feeding Micraspis discolor (Fabricius) by using mixed food of eggs of ephestia kuuhniella and rape pollen, and relates to the field of insect feeding. The method specifically comprises the following steps: S1, feeding the eggs of ephestia kuuhniella; S2, feeding larvae of the Micraspis discolor (Fabricius) by mixing the eggs of ephestia kuuhniella and the rape pollen, and waiting for pupation and emergence; S3, carrying out male and female identification on adult Micraspis discolor (Fabricius) which primarily emerge, and then carrying out male and female pairing and egg laying; and S4, collecting egg masses of the Micraspis discolor (Fabricius), and propagating after incubation. According to the method, the eggs of ephestia kuuhniella and the rape pollen are adopted for mixed feeding, the feeding raw material cost is low, artificial breeding is simple, the food sufficiency can be guaranteed, the breeding cost is reduced, a systematic artificial propagation process is formed, therefore, individuals of the bred Micraspis discolor (Fabricius) are healthy, the survival rate is increased, and continuous multi-generation stable breeding is achieved.

Description

technical field [0001] The invention relates to the field of insect feeding, in particular to a method for raising the rice red ladybug by using the mixed food of Mediterranean mealworm eggs and rape pollen. Background technique [0002] The red ladybug Micraspis discolor (Fabricius) is one of the dominant species of predatory natural enemies of rice field pests. It preys on a variety of rice pests including thrips, rice aphids, leafhoppers, planthoppers, Lepidoptera larvae and eggs, and has control over brown planthoppers. Function, distributed in Zhejiang, Jiangxi, Hubei, Hunan, Sichuan, Fujian, Guangdong, Guangxi, Yunnan, etc. After entering the 90-year zone, its population density dropped sharply in Jiangxi. The large-scale breeding of the red ladybug can be used for field control, reducing the use and harm of chemical pesticides, protecting the environment and maintaining public health. Most of the existing methods for breeding the red ladybug are to use the natural pr...

AI Technical Summary

Problems solved by technology

[0003] Using natural prey-aphids as food can certainly breed better-quality red ladybugs, but this method requires artificial planting of host plants for aphids to reproduce, and the population of aphids has a natural law of ebb and flow. The adequacy of food cannot be guaranteed during the worming process

Secondly, using the feeding method of host plants-aphids-ladybugs, in addition to the need to invest a lot of material and space costs, is also extremely dependent on artificial

The use of fruit flies as live feed to feed rice red ladybugs has the following disadvantages: larval survival rate is low, development time is prolonged, final adult emergence is less and less active, mating behavior is less, and it cannot reproduce to the next generation; this technology has not been systematically developed The process of feeding ladybugs cannot be well guided by the systematic multiplication of red ladybugs; Drosophila is a very convenient food source, but natural food always encounters the problem that its number will increase and decrease with time in the process of feeding ladybugs, and it is difficult to Ensure food adequacy over time

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