Method for efficiently breeding phytoseiulus persimilis

Abstract

The invention discloses a method for efficiently breeding phytoseiulus persimilis and belongs to the field of biological control of agricultural pests. The method comprises steps as follows: planting and culturing of host plants, inoculation and breeding of tetranychidae, inoculation and culturing of the phytoseiulus persimilis as well as harvesting and storage of the phytoseiulus persimilis. The host plants adopt sweet potato cutting seedlings, and the tetranychidae is a mixed population of tetranychus cinnabarinus and tetranychus urticae. The time for breeding the phytoseiulus persimilis with the sweet potato cutting seedlings is 30-40 days and is shortened by 40% compared with the breeding time with a breeding method of bean seedlings having the same leaf area, and the greenhouse utilization efficiency is improved.

Description

technical field

[0001] The invention belongs to the field of industrial production of beneficial insects and biological control of agricultural pests, and relates to the propagation of Phytoseiid militaris, in particular to a method for efficiently propagating Phytoseioid militaris. Background technique

[0002] Phytoseiid militaris is a predatory natural enemy of spider mites, and is widely used in the control of greenhouse spider mites. Spider mites harm a variety of vegetables, including eggplant, peppers, strawberries, beans, melons, etc., and use adult mites and nymphs to suck the juice of the host on the back of the leaves. Large areas of off-white spots appear on the damaged leaves, which affect the photosynthesis of the plant. In severe cases, the leaves dry up and fall off, and even the whole plant dies. Because spider mites reproduce quickly, they are prone to produce resistance, which brings difficulties to control. The use of phytoseiid mites to control spider ...

Examples

Embodiment 1

[0023] (1) Construction of greenhouse workshops and facility conditions: establish mutually isolated plant rooms, which are clean seedling cultivation room, spider mite breeding room, and phytoseiid mites breeding room; the plant room is cooled by a combination of "wet curtain + fan" instead of air conditioning , round-wing heaters are used for heating; the phytoseiid mite room is equipped with a large rectangular sink to prevent the phytoseiid mite from spreading to the spider mite breeding room. The combination of "water curtain + fan" is used to replace the air conditioner to cool down, which greatly reduces energy consumption; strict isolation measures are taken in each link, which solves the problem of mutual interference of insects in different areas.

[0024] (2) Material selection: the host plant adopts sweet potato cutting seedlings, which have the advantages of wide range of suitable temperature and humidity, large seedling raising capacity, fast growth rate, resistan...

technical field

[0001] The invention belongs to the field of industrial production of beneficial insects and biological control of agricultural pests, and relates to the propagation of Phytoseiid militaris, in particular to a method for efficiently propagating Phytoseioid militaris. Background technique

[0002] Phytoseiid militaris is a predatory natural enemy of spider mites, and is widely used in the control of greenhouse spider mites. Spider mites harm a variety of vegetables, including eggplant, peppers, strawberries, beans, melons, etc., and use adult mites and nymphs to suck the juice of the host on the back of the leaves. Large areas of off-white spots appear on the damaged leaves, which affect the photosynthesis of the plant. In severe cases, the leaves dry up and fall off, and even the whole plant dies. Because spider mites reproduce quickly, they are prone to produce resistance, which brings difficulties to control. The use of phytoseiid mites to control spider ...

Examples

Embodiment 1

[0023] (1) Construction of greenhouse workshops and facility conditions: establish mutually isolated plant rooms, which are clean seedling cultivation room, spider mite breeding room, and phytoseiid mites breeding room; the plant room is cooled by a combination of "wet curtain + fan" instead of air conditioning , round-wing heaters are used for heating; the phytoseiid mite room is equipped with a large rectangular sink to prevent the phytoseiid mite from spreading to the spider mite breeding room. The combination of "water curtain + fan" is used to replace the air conditioner to cool down, which greatly reduces energy consumption; strict isolation measures are taken in each link, which solves the problem of mutual interference of insects in different areas.

[0024] (2) Material selection: the host plant adopts sweet potato cutting seedlings, which have the advantages of wide range of suitable temperature and humidity, large seedling raising capacity, fast growth rate, resistan...