Breeding method of pyemotes tritici

A kind of technology of mite and original species, applied in the field of biological control, can solve the problems of not being suitable for large-scale reproduction, high cost, and no significant increase in the number of reproductive offspring, etc., and achieve self-protection avoidance, simple operation, and simple and easy-to-obtain equipment Effect

Inactive Publication Date: 2012-12-12
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foreign scholars have used artificial feed to breed wheat cat mites, and the number of breeding offspring has not been significantly increased. However, due to the high cost and strict requirements on environmental conditions in the process of preparation and breeding, it is not suitable for large-scale reproduction.

Method used

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  • Breeding method of pyemotes tritici

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 Screening of Alternative Hosts for Propagation of Maipomite Original Species

[0027] In order to maintain the original species of the mite to the greatest extent, when breeding, first use the larvae or the larvae of the main boring pests of Artemisia oleifera and Artemisia spp. Pupae were used as alternative hosts to obtain a large number of stock species. The results are shown in Table 1. Among the three kinds of borer pests of Artemisia, the larvae of Xyloptera moth are not suitable as alternative hosts for the breeding of the wheat cat mite, while the larvae and pupae of Artemisia spp. are more suitable. Because the larvae of the wood beetle moth are multi-legged and active in movement, the sucking and sucking of the barley mite will cause the body to twist violently, which can easily crush the adult mites to death. Although individual adult mites can parasitize on the surface of the larvae, the larvae It does not move, but it cannot produce bulging bodi...

Embodiment 2

[0031] Example 2 The effect of tightening the mouthparts of the larvae of Mellonella mellonella with thin threads on the parasitism rate of the barley mite

[0032] The larvae of the greater wax moth wrap the body in the cocoon by spinning silk and making cocoons, so that the mite cannot be fixed on the larval body and cannot parasitize the larvae of the greater wax moth. The mouthparts of the larvae of Mellonella mellonella were tied tightly with a thin thread, and then the parasitism experiment of the barley mite was carried out. The results are shown in Table 2. The larvae of Mellonella mellonella larvae treated with mouthparts and untreated can be parasitized by the mite, produce dilated abdomen, and complete development, but there are significant differences in parasitism time and parasitism rate. difference. The untreated larva wraps the body of the worm by spinning and cocooning, so that the mites cannot touch the body of the worm and cannot parasitize smoothly; while ...

Embodiment 3

[0035] Example 3 Screening of the Best Alternative Hosts for Massive Propagation of the Maipomite

[0036] Four kinds of borer pests commonly found in the desert areas of Northwest China (Caragana green tiger beetle, red edge beetle, poplar beetle, elm beetle larvae) and the larvae of the wax moth moth whose mouthparts were tied tightly with thin threads were selected as Alternative hosts for mass reproduction of the barley mite. The results are shown in Table 3. Maipo mites can parasitize these five alternative hosts and produce dilated bodies. Among them, the highest parasitism rate is the larvae of the red-margin beetle, and the lowest is the larvae of the elm beetle. As far as the parasitic time is concerned, the parasitic time of the wheat leaf mite on the larvae of the greater wax moth and the red-margined beetle is the shortest. It can be fixed on the surface of the larvae in 1-2 days, and it will produce a dilated body in 2-3 days. A new generation of adult mites can b...

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Abstract

The invention relates to a breeding method of pyemotes tritici, which comprises the following steps of: placing original hosts parasitized by the pyemotes tritici into a dactylethrae, and placing alternative hosts into a culture dish, placing the dactylethrae into the culture dish, inoculating for 24-48h and then transferring the parasitized alternative hosts into the dactylethrae to culture to serve as protospecies of the pyemotes tritici; placing the protospecies of the pyemotes tritici and the alternative hosts into the culture dish according to the method, inoculating for 48-72h and then transferring the parasitized alternative hosts into the dactylethrae to culture to breed the pyemotes tritici. The method provided by the invention is concise in operation, a used device is simple and available, and the inoculation method combining the dactylethrae with the culture dish greatly reduces the damage on the physogastry body of the pyemotes tritici caused by the activity of the alternative hosts and increases the parasitism rate of the pyemotes tritici.

Description

technical field [0001] The invention relates to the technical field of biological control, in particular to a breeding method of Pyemotes tritici. Background technique [0002] Desert shrub forest is a special kind of forest resource in my country, with a wide distribution and a large area. It is distributed in almost all deserts, Gobi, plains, river banks, and front mountain ravines and slopes. my country is rich in desert shrub species, mainly including Hippophae rhamnoidea, Caragana korshinskii, Artemisia ordosica, A.sphaerocephala, Hedysarum mongolicum, Haloxylon ammodendron, More than 10 species including Hedysarum scoparium, Lycium chinense, Salix psammophila, and Tamarix chinensis are resistant to drought, sandstorms, barrenness, fast natural regeneration, strong germination ability, and well-developed root system With its special form and adaptability, it has become an important community for vegetation restoration in the Three North Areas of my country, playing an ir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
Inventor 骆有庆王建伟宗世祥张翔
Owner BEIJING FORESTRY UNIVERSITY
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