Method for feeding chrysopa formosa by megoura japonica

A technology of lacewings and peas, which is applied in the field of biological control of agricultural pests, can solve problems such as food safety, increased use of pesticides, and enhanced resistance of aphids to achieve the goals of protection from damage, short propagation cycle, and increased yield Effect

Active Publication Date: 2019-10-25
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the control of aphids has mainly relied on systemic chemical insecticides, but the long-term overuse of pesticides ha...

Method used

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  • Method for feeding chrysopa formosa by megoura japonica
  • Method for feeding chrysopa formosa by megoura japonica
  • Method for feeding chrysopa formosa by megoura japonica

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1 The screening of lacewing substitute prey

[0058] 1.1 Effects of different aphid species on the growth and development of Lacewing

[0059] Under the conditions of indoor temperature of 26±1℃ and photoperiod of 16L:8D (16 hours of daytime light and 8 hours of darkness at night), the effects of Prunus pea, soybean aphid Aphis glycines and green peach aphid Myzus persicae on the growth and development of lacewings were determined respectively. , to screen out aphid species suitable for large-scale expansion of Lacewings.

[0060] The experimental method is as follows: 26°C, 16L:8D conditions to collect the first eggs of Lacewings (within 24h), put the eggs in a rearing box with corrugated filter paper strips on the bottom, repeat 3 times for each treatment, and Repeat for 60 eggs. The eggs were incubated under the above-mentioned experimental treatment conditions. After the eggs hatched, a sufficient amount of aphids were added to feed each day until the l...

Embodiment 2

[0067] The large-scale propagation of embodiment 2 pea aphid

[0068] 2.1 Host plant cultivation

[0069] After screening, the broad bean variety that is the natural king was selected as the host plant for the expansion and propagation of pea aphids. Excellent host plants for aphids.

[0070] The specific steps of using broad bean seedlings to raise aphids on a large scale are as follows: 24-hole seedling pots (30 × 20 × 10 cm) were placed under the conditions of 25 ± 1 °C indoors and a photoperiod of 16 L: 8 D (16 hours of light during the day and 8 hours of darkness at night). Put the sterilized vermiculite inside, the thickness of the vermiculite is about 2.5cm, flatten the vermiculite to make it slightly compact, screen a large and plump broad bean seed and sprinkle it evenly on the vermiculite, each pot is divided into 600cm 2 The ratio of sowing 200-220 grains of broad beans is carried out to raise seedlings, and evenly spread a layer of vermiculite with a thickness of...

Embodiment 3

[0075] The scale propagation of embodiment 3 Lacewing

[0076] 3.1 Effects of different temperatures on the growth and development of Lacewings

[0077] In order to determine the suitable temperature for the scale expansion of C. lacewing, the effects of temperature 20°C, 24°C, 26°C, and 30°C on the developmental period, pupation rate, adult eclosion rate and Effect of cocoon weight.

[0078] The experimental method is: under the conditions of 26±1°C and 16L:8D, collect the first-laid eggs (within 24 hours) of Lapis lacewings, put the eggs in a rearing box with corrugated filter paper strips on the bottom, and repeat 3 times for each treatment. times, 60 eggs per repetition. The eggs were incubated under the above-mentioned temperature treatment conditions. After the eggs hatched, a sufficient amount of aphids were added to feed each day until the larvae formed cocoons, and the cocoons were collected every day and placed in a petri dish (9×1.5 cm). The time required to deve...

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Abstract

The invention relates to a method for feeding chrysopa formosa by megoura japonica. The method, in which the megoura japonica serves as a prey to feed the chrysopa formosa, includes the following steps: collecting and hatching the chrysopa formosa, feeding larvae of the chrysopa formosa in groups, centrally developing aged mature larvae into chrysopa formosa pupas, and performing eclosion and feeding of adult chrysopa formosa. The method has the advantages that high-quality, high-efficiency, simple, convenient, economical, standardized and perennial large-scale production of aphids and lacewings is realized; the method can be used for controlling a variety of aphids, whiteflies, scale insects, harmful mites, lepidopteran eggs and larvae, and other agriculture and forestry pests, and meetsthe biological control requirements of greenhouse vegetables, land for growing field crops, orchards, flowers and the like.

Description

technical field [0001] The invention belongs to the technical field of biological control of agricultural pests, and in particular relates to a method for raising lacewings by using Prunus pea aphids. Background technique [0002] Aphids are major pests in the world's agricultural and forestry production. They are widely distributed in the world and are widely distributed in my country. Among them, Liaoning, Hebei, Gansu, Xinjiang, Beijing, Yunnan and Taiwan are relatively densely distributed. Aphids have a wide range of hosts, a large number of occurrences, rapid reproduction, and serious generation overlap. They can harm plants through feeding, honeydew pollution, and virus transmission, causing plant growth retardation, wilting, and inducing various viral diseases and black mold. Diseases, etc., cause damage to plant organs and loss of nutrients. In severe cases, it can lead to plant death, and cause the occurrence and prevalence of plant diseases, causing great economic ...

Claims

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Application Information

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IPC IPC(8): A01K67/033A01N1/00
CPCA01K67/033A01N1/00
Inventor 李玉艳张礼生陈红印王孟卿毛建军刘晨曦王曼姿谢应强
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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