Diapause inducing method for chrysopa formosa brauer

A lacewing and diapause technology, applied in animal husbandry and other directions, can solve the problems of long-term storage of products, long propagation cycle of natural enemy insects, short survival period, etc., to achieve annual propagation and large-scale application, extended prevention Control the action time and ensure the effect of safe transportation

Inactive Publication Date: 2018-05-22
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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Problems solved by technology

[0004] At present, the main bottleneck problems restricting the large-scale production and application of natural enemy insects at home and abroad are: natural enemy insects have a long propagation cycle, short survival period, long-term storage of products, and long-distance transportation difficulties, etc., which make it difficult for natural enemy products to leave the factory. The occurrence period is the same, and the actual application effect is not ideal

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  • Diapause inducing method for chrysopa formosa brauer
  • Diapause inducing method for chrysopa formosa brauer
  • Diapause inducing method for chrysopa formosa brauer

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below through specific examples.

[0020] Experiment 1 Determination of diapause state and timing of diapause regulation and control in Lacewings

[0021] 1.1 The source and feeding method of the tested insects:

[0022] The pea aphid Megoura japonica (Matsumura) was collected from Yunnan. Under the conditions of indoor temperature of 26°C and photoperiod of 16L:8D (16 hours of light per day and 8 hours of darkness), broad bean seedlings were continuously raised for multiple generations. Establish a stable population as the source of the tested insects.

[0023] Chrysopa formosa Brauer adults were collected from the field of the Langfang Experimental Base of the Chinese Academy of Agricultural Sciences. The adults were placed in insect cages (60×60×60cm) under indoor conditions of 26°C and a photoperiod of 16L:8D (normal development conditions). The Prunus pea was used as a host for continuous ...

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Abstract

The invention provides a diapause inducing method for chrysopa formosa brauer. The method includes the following steps of 1, selecting the whole larval phase of chrysopa formosa brauer as the diapauseregulation and control timing, and adopting chrysopa formosa brauer at the regulation and control timing as diapause inducing objects; 2, placing chrysopa formosa brauer selected in the step 1 underan inducing environmental condition, and regulating and controlling the combination of illumination time length, temperature and total inducing time length every day to enable chrysopa formosa brauerto enter a diapause state, wherein the everyday illumination time length adopts a photoperiod of (8-12) L:(16-12) D, the temperature is 18-26 DEG C, and a continuous inducing time period starts from an annual-larva period to a pupal period. The method has the advantages that manual regulation and control of the growth process of chrysopa formosa brauer can be achieved, the diapause characteristiccan be applied to biological prevention and control to prolong the shelf life of natural enemy products, ensure safe long-distance transportation of the products and improve the disaster control effect, and a technical guarantee is provided for annual propagation expansion and large-scale application of the natural enemy insect products.

Description

technical field [0001] The invention relates to the field of biotechnology, and more specifically relates to a method for inducing diapause of C. lacewing, the diapause state of C. lacewing, the timing of diapause regulation and control, and the method for inducing diapause. Background technique [0002] In recent years, with the transformation of modern agricultural farming models and the comprehensive results of global climate change, new changes have appeared in the population structure and catastrophe laws of agricultural diseases and insect pests worldwide. At present, agricultural pests and diseases frequently break out in my country, and the annual crop yield loss due to pests and diseases accounts for about 10-15% of the total loss. threaten. Therefore, the development of environmentally friendly, effective, safe and sustainable integrated pest management strategies has important economic, social and ecological benefits for ensuring national food production security,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 李玉艳张礼生陈红印王孟卿刘晨曦王曼姿高飞
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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