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Diapause induction method of harmonia dimidiata

A red-shouldered ladybug and diapause technology, which is applied in animal husbandry and other fields, can solve the problems of no natural enemy products for pests, long propagation cycle of natural enemy insects, and consistent pest occurrence period when products leave the factory, so as to improve the efficiency of pest control and improve the efficiency of pest control. The level of scientific governance and the effect of enriching biological control methods

Active Publication Date: 2015-01-07
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

[0004] At present, a bottleneck problem in the industrialization of natural enemy insects at home and abroad is: natural enemy insects have a long propagation cycle and short survival period, and it is difficult for the product delivery time to coincide with the occurrence period of pests, which often leads to the death of natural enemies before the occurrence of pests, or the occurrence of pests. Occurs when no natural enemy product is available
However, in actual production and application, there are often problems such as short multiplication cycle, long-term storage and timely application of products, and diapause of adults, which affect the multiplication efficiency, which has become a technical bottleneck restricting the large-scale production and application of red-shouldered ladybug.

Method used

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  • Diapause induction method of harmonia dimidiata
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  • Diapause induction method of harmonia dimidiata

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Embodiment Construction

[0025] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended invention purpose, the structure and working process of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] The present invention is the technical achievement obtained by the applicant after spending 5 years cultivating and verifying it on the basis of a large number of experiments.

[0027] 1. Time cost: from 2010 to now, it took 5 years.

[0028] 2. Economic cost:

[0029] (1) Equipment: 7 sets of artificial climate boxes (Ningbo Jiangnan 500C type) were purchased successively, and the expenditure was 1.5*7=112,000 yuan;

[0030] (2) Reagents: purchase necessary seeds, liquid fertilizers, vermiculite, peat, and necessary chemical reagents for diapause induction tests to maintain the population of test insects. The cumulative expenditure is 15,000 yuan / year*5 years=75...

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Abstract

The invention discloses a diapause induction method of harmonia dimidiate. The diapause induction method comprises the steps of 1) determining the diapause control sensitive stage of the harmonia dimidiate as adjusts just after eclosion and selecting the harmonia dimidiate at the stage as the diapause induction objects, and 2) putting the harmonia dimidiate selected in the step 1) in a diapause induction environment and enabling the harmonia dimidiate to enter the diapause state by regulating and controlling the combination of illumination time each day, temperature and total induction time, wherein the illumination time each day is photoperiod (8-10)L: (16-14) D, the temperature is in the range of 13-15, and the continuous induction time is greater than or equal to 192 hours. The diapause induction method of the harmonia dimidiate is capable of realizing accurate control on the excellent natural predatory enemy insect harmonia dimidiate by controlling the environmental factors in combination necessary treatment measures; the diapause rate can be about 95%; technical guarantee is provided for annual large-scale production of the harmonia dimidiate.

Description

technical field [0001] The invention relates to a method for inducing diapause of the red-shouldered ladybug, through which the adults of the red-shouldered ladybug can develop slowly, enter the diapause stage, and delay the oviposition time. Background technique [0002] The crop yield loss caused by agricultural diseases and insect pests in my country is 10-15% every year. Realizing the scientific control of agricultural diseases and insect pests has important economic and social benefits for ensuring the implementation of the national food security strategy and promoting agricultural high yields. Aphids are the largest pests in agricultural production, and the global losses caused by aphids are nearly 5 billion US dollars each year. At present, chemical insecticides are mainly used to prevent and control aphids. [0003] In the process of controlling agricultural pests, if we blindly rely on chemical pesticides, it will bring a series of negative problems in terms of ecol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 张礼生陈红印吴根虎蒋莎王孟卿刘晨曦张莹
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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