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Water release method of culex larva bio-control bacteria

A bio-control bacteria and larvae technology, applied in the fields of botanical equipment and methods, pesticides, biocides, etc., can solve the problems of difficult to achieve results, poor viability, poor performance, etc., and achieve improved viability and high germination rate. , improve the effect of prevention and control

Inactive Publication Date: 2012-09-19
TAISHAN MEDICAL UNIV
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Problems solved by technology

However, in the study of mosquito biocontrol bacteria, the effect in the laboratory is good, but the performance in field application is relatively poor, which is mainly related to the release method. The traditional release method is mainly to spray bacteria in the target water body or spores, but their viability in new environments is poor, so it is difficult to achieve the desired effect

Method used

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  • Water release method of culex larva bio-control bacteria
  • Water release method of culex larva bio-control bacteria
  • Water release method of culex larva bio-control bacteria

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[0027] About 30 3-instar Culex larvae 5 days after being inoculated with Beauveria bassiana, Metarhizium anisopliae, and Paecilomyces lilacinus were put into mesh bags, and the outdoor sewage was taken and divided into 6 copies were inserted into the laboratory-raised Culex mosquitoes, each containing about 50 Culex larvae larvae, 3 of which were released in mesh bags filled with 50 Culex mosquitoes inoculated, and the other 3 were directly added with Beauveria bassiana fungal spores, making the spore concentration 10 6 pieces / ml. The number of dead larvae after infection was counted every day, and the cumulative statistical death rate was calculated. The results showed that for the three kinds of mosquito biocontrol bacteria, the effect of net bag release method on killing mosquito larvae was significantly better than that of direct release of spores (see Figure 1-3 ).

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Abstract

The invention discloses a water release method of culex larva bio-control bacteria. In the method, infected culex larvas are added into a fine-hole mesh bag, and the fine-hole mesh bag filled with the infected culex larvas is arranged in culex larva water. Compared with the bio-control bacteria directly released in the water, the method is high in germination percentage and better in bio-control effect.

Description

[0001] technical field [0002] The invention belongs to biological technology, and in particular relates to a water release method of Culex larva biocontrol bacteria. Background technique [0003] Culex mosquitoes mainly breed in polluted water bodies near human settlements. Sewage ponds, smelly ditches, rainwater wells, sewers, fertilizer tanks in gardens and orchards, and potholes in construction sites in cities are the main sources. breeding places. Culex mosquitoes are also one of the most important sanitary pests. On the one hand, they harass people's lives through activities, and on the other hand, they can transmit infectious diseases such as Bancroftian filariasis and Japanese encephalitis through biting and blood-sucking. The prevention and control is of great significance. Traditional mosquito control is mainly based on chemical control. However, due to the long-term use of a large number of chemical insecticides, the resistance of mosquitoes is becoming more and...

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Application Information

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IPC IPC(8): A01N63/04A01P7/04
Inventor 张忠张一搏于爱莲杨春贵
Owner TAISHAN MEDICAL UNIV
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