Large-scale feeding and storage method of aphids and predators of aphids

Abstract

The invention provides a large-scale feeding and storage method of aphids and predators of the aphids. The method comprises the following steps: Step 1, feeding soybean aphids by taking soybeans as host plants, wherein the soybean aphids are used for feeding ladybirds; Step 2, incubating ova of the ladybirds into larvas in concentration manner and feeding the soybean aphids with the larvas so that the soybean aphids pupate; Step 3, performing eclosion on pupas formed in Step 2, so as to obtain adults; Step 4, feeding the adults in Step 3 in pairs, so as to obtain ova of the ladybirds, and placing the ova of the ladybirds into a cold cupboard for dark treatment; and Step 5, storing the adults in Step 3 with the soybean aphids. The method has the beneficial effects that large-scale, low-cost and standardized production of the aphids and the predators of the aphids, so that the large-scale production of high-quality coccinelidae and lacewing comes true, and the commercialization of the ladybirds and the lacewing is promoted.

Description

technical field [0001] The invention relates to a large-scale feeding and storage method of aphids and their predatory natural enemies, and more specifically relates to cultivation of aphids, centralized hatching of ladybug eggs, larvae rearing, centralized pupation of mature larvae, paired rearing of adults, Collection and storage of commercial eggs and adjustments to storage of commercial ladybird adults. Background technique [0002] Aphids are important pests that harm the growth of a variety of crops. They have strong reproductive capacity and destructiveness. They often suck plant juice through thorns on young leaves, stems, flower buds, and tender tips of plants, causing plant nutrition loss and damage. plant organs. In addition, when aphids reproduce and harm, they will secrete a large amount of honeydew. These honeydews provide excellent nutrients for the reproduction of some fungi and bacteria, so that the fungi and bacteria can multiply and spread rapidly, formin...

AI Technical Summary

Problems solved by technology

Although these plants can reproduce a certain number of aphids, they have disadvantages such as long reproductive cycle, low yield, requiring a greenhouse, and difficult collection; in addition, these host plants are difficult to achieve standardized cultivation, so standardization of aphid breeding cannot be realized

[0008] (2) There is no suitable breeding method

The existing aphid breeding method is only to insert aphids when the host plant grows to a certain stage, which cannot make full use of the nutrition of the host plant. At the same time, it is greatly interfered by the resistance of the host plant. When the host plant grows robustly, the aphid population develops slowly. There is even a decline

In addition, it is difficult to control natural enemy insects in the production environment, and it is difficult to remove natural enemy insects when they invade the breeding environment, resulting in the population of aphids being always suppressed at a low level

[0009] (3) There is no large-scale, rapid and mass-produced technology for aphids

The existing aphid propagation method often takes 30-40 days from seedlings to inoculation, so it consumes a lot of energy, uses a lot of manpower, and takes up a lot of greenhouse space, which makes centralized output and standardized production impossible.

[0010] (4) strong seasonal dependence

At present, breeding aphids can only be artificially propagated in seasons suitable for the growth of aphids, usually within 2-3 months of spring and autumn. At other times, it is difficult to guarantee the temperature and humidity, or the host plants are difficult to obtain, so it cannot be carried out in large quantities. Production

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