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Biological method for preventing and treating white ant

A technology of termites and domestic termites, applied in botany equipment and methods, biocides, animal repellents, etc., can solve the problems that the work of termite control has not been reported.

Inactive Publication Date: 2005-06-08
GUANGDONG ENTOMOLOGICAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although bacteria of the genus Xenorhabdus and Photorhabdus, and the pathogenic fungus Metarhizium anisopliae (Chafer metarhizium anisopliae) have been used to control termites, the application of these two types of biological agents together to control termites has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Example 1: The cultivation and formulation of Xenorhabdus nematophilus and Photorhabdus luminescens bacteria, and Metarhizium anisopliae, used in Examples 2-7.

[0021] Cultivation and Formulation of Bacteria of the Genus Xenorhabdus and Photorhabdus:

[0022]Add 100mL liquid medium (1% peptone, 0.5% NaCl) to a 500mL Erlenmeyer flask, and autoclave at 121°C for 30 minutes; then insert 1mL of X.nematophilus or P.luminescens primary symbiotic strains, and place at 25°C , Shaker culture under 150r / min for 48 hours, the obtained bacterial liquid (about 10 per milliliter 7 ~10 8 Bacteria) can be used as water agent for termite control. Such bacteria can also be cultured in large quantities in fermenters or reactors. When using bacterial liquid, personnel in this professional field can dilute the bacterial liquid to 10% per milliliter according to the occurrence and quantity of termites. 5 ~10 8 The bacterial range is then applied to control termites. However, the optim...

example 2

[0027] Example 2: Mixed use of pathogenic bacteria liquid and pathogenic fungus spore liquid to prevent and control house termites.

[0028] After X.nematophilus bacterium or P.luminescens bacterium are cultured in liquid medium (1% peptone, 0.5% NaCl), obtain bacterial liquid (about every milliliter 5 * 10 8 bacteria). After culturing Metarhizium anisopliae in potato dextrose medium (PDA) in a culture room at 25°C for 10 days, the plate was covered with hyphae and produced spores. The long spores in the plate are washed with sterile water to make a liquid preparation (about 5 × 10 per milliliter). 7 spore). Add a layer of medium-speed filter paper and 1 g of wood chips (also autoclaved) with a water content of 10% to each autoclaved plate (diameter = 9 cm), take 0.5 ml of bacterial bacteria liquid and 0.5 ml of fungal spore liquid and mix well , Then add in the sawdust, then add 20 worker ants that are not infected by bacteria and fungi in the flat plate. Add only bacteri...

example 3

[0031] Example 3: Mixed use of pathogenic bacteria and pathogenic fungus powder to control domestic termites.

[0032] Adding one deck of medium-speed filter paper and 1 gram of water content is 10% sawdust (also through autoclaving) in the flat plate (diameter=9cm) of each autoclaving, according to the powder prepared as described in Example 1, get 0.5 gram of bacterial powder (approximately 10 per gram 8 bacteria) and 0.5 grams of fungal spore powder (containing about 10 per gram 8 spores) were mixed evenly, then added in sawdust, and then added 20 worker ants that were not infected by bacteria and fungi in the flat plate. Only bacteria powder, or only fungal spore powder was added to the plate, or termites not exposed to biological agents were placed in the same petri dish as a control. Each treatment was replicated with 4 plates. All plates were sealed with Parafilm and placed at 25°C. The death of termites was checked every day, and the number of dead termites was rec...

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PUM

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Abstract

A biological method for preventing and eliminating termite features that the pathogenic bacterium Xenorhabdus nematophilus or photorhabdus nematophilus and / or the pathogenic fungus Metarhizium anisopliae, or their preparations are applied to the termite colony or to the termite attractant (cellulose for example) to make the termite be infected by them, so killing to the termite.

Description

technical field [0001] The invention relates to a biological control method for termites, in particular to a method for controlling Coptotermes formosanus by combining artificially cultivated pathogenic bacteria Xenorhabdusnematophilus or Photorhabdus luminescens with artificially cultivated pathogenic fungus Metarhizium anisopliae. Background technique [0002] House termites are highly harmful social insects. At present, there are two common methods to control termites: one is termite prevention; the other is termite control. Termite prevention is the use of chemical agents to treat soil or wooden structures to avoid and prevent termite damage; or use physical barriers or chemical barriers to prevent termites from invading various buildings and target hazards. Termite control is to use various chemical agents to treat the position harmed by termites; or set up an induction box to induce termites, and then use various chemical agents to apply to the induction box, and the ...

Claims

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Application Information

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IPC IPC(8): A01N63/04
Inventor 韩日畴曹莉刘秀玲陈镜华何向阳
Owner GUANGDONG ENTOMOLOGICAL INST