Strain having high-efficiency insecticidal function

A technology with insecticidal effect and high efficiency, applied in the direction of insecticide, application, bacteria, etc., can solve the problems of increasing drug-resistant pests, polluting the environment, endangering human health, etc., and achieve good insecticidal effect

Inactive Publication Date: 2011-11-23
HEILONGJIANG UNIV
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Problems solved by technology

However, long-term large-scale use of chemical pesticides will lead to a large increase in drug-resistant pests, and the accumulation of pesticide residues in agricultural by-products. In addition, chemical pesticides are not easy to decompose. Long-term use will seriously pollute the environment, endanger human health, and cause increasingly serious environmental and social problems.

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  • Strain having high-efficiency insecticidal function
  • Strain having high-efficiency insecticidal function
  • Strain having high-efficiency insecticidal function

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specific Embodiment approach 1

[0011] Specific embodiment one: the bacterial strain that this embodiment has efficient insecticidal effect, it is Streptomyces Laidensis (Streptomyces Laidensis) YU, 2008 H008, belongs to Streptomyces Laidensis (Streptomyces Laidensis), has been preserved in China Type Culture Collection Center, preservation number It is CCTCC No: M 2011028, and the preservation date is January 21, 2011; it is a Gram-positive bacterium, a bacillus, with hyphae, developed hyphae, differentiated into basal hyphae and aerial hyphae, and the size of the bacteria The length is 0.6×1.0 μm, with spores; opaque colonies are formed on the beef extract peptone medium, the diameter of the colony is 0.8-1.0mm, the surface of the colony is dry, and the surface is dense and silky and closely connected with the medium.

[0012] In the present embodiment, the bacterial strain with efficient insecticidal effect is Streptomyces Laidensis YU, 2008H008, (see figure 1 ), according to the "Bergey's Bacteriological...

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Abstract

The invention discloses a strain having a high-efficiency insecticidal function, which relates to a strain having a high-efficiency insecticidal function. The aim of the invention is to provide a bacterium source for the preparation of microbial insecticides. The strain having the high-efficiency insecticidal function is (Streptomyces Laidensis)YU, 2008 H008, which belongs to Streptomyces Laidensis and was collected in Chinese Center for Typical Culture Collection with a collection number of CCTCC No.M2011028 on January 21th, 2011. The strain having high-efficiency insecticidal function provides a new bacterium source for the preparation of microbial insecticides and has very good insecticidal effect, and the insecticidal rates of the strain for aphids, red spiders, phylloxerae and whitefly all reach 96 to 98 percent.

Description

technical field [0001] The invention relates to a bacterial strain with high-efficiency insecticidal effect. Background technique [0002] At present, the amount of chemical pesticides accounts for more than 80% of the total amount of pesticides used. However, long-term large-scale use of chemical pesticides will lead to a large increase in drug-resistant pests, and the accumulation of pesticide residues in agricultural by-products. In addition, chemical pesticides are not easy to decompose. Long-term use will seriously pollute the environment, endanger human health, and cause increasingly serious environmental and social problems. . At present, the transformation of pesticide research and development projects into biological pesticides has become an important development trend. [0003] Biopesticides produced by microbial fermentation occupy an important position in biopesticides. Compared with chemical pesticides, they have the characteristics of less environmental pollu...

Claims

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Application Information

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IPC IPC(8): C12N1/20A01N63/02A01P7/04C12R1/465
Inventor 闫鹏飞余琼高金胜张巍马东升
Owner HEILONGJIANG UNIV
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