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Application of insecticide prepared by microbial fermentation

A technology for microbial fermentation and preparation of insecticides, which is applied in the direction of insecticides, biocides, animal repellants, etc., and can solve the problems of chemical pesticides with low insecticidal specificity, long residual period in the field, and pest resistance. , to achieve the effects of controlling pest populations and their hazards, long-lasting efficacy and long shelf life

Inactive Publication Date: 2018-04-24
浦江县美泽生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low insecticidal specificity of chemical pesticides, the residual effect period in the field is long, and it is easy to induce pests to develop resistance to them, especially the pollution of agricultural products and the environment caused by residual chemical pesticides, resulting in miscarriage of women, baby deformities and induced human Various cancers and other diseases, so the use of biopesticides to control pests is increasingly valued by humans

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The insecticide prepared by microbial fermentation has the following components and parts by weight: 10 parts of caterpillar fungus powder, 10 parts of neem seeds, 2 parts of synergist, 3 parts of centipede, 3 parts of planeweed, and 5 parts of Eupatorium adenophorum. The builder is 50% ramie oil and 50% silicone surfactant.

[0017] The extraction method of ramie oil is as follows: cut and crush the collected fresh ramie plants, pass through a 50-mesh sieve, take ramie plant powder, add 5 times the volume of acetone, stir and extract for 7 hours, centrifuge and concentrate under reduced pressure to obtain ramie oil .

[0018] The method for the insecticide prepared by microbial fermentation, comprising the following steps:

[0019] 1) Pretreatment: Neem seeds are pre-soaked and then subjected to steam explosion, the pressure is controlled at 3.5MPa, and the maintenance time is 50s to obtain neem seed explosives; adding petroleum ether for extraction, layering and taki...

Embodiment 2

[0025] The insecticide prepared by microbial fermentation has the following components and parts by weight: 8 parts of caterpillar fungus powder, 12 parts of neem seeds, 2 parts of synergist, 2 parts of centipede, 3 parts of planeweed, and 6 parts of Eupatorium adenophorum. The builder is 50% ramie oil and 50% silicone surfactant.

[0026] The extraction method of ramie oil is as follows: cut and crush the collected fresh ramie plants, pass through a 50-mesh sieve, take ramie plant powder, add 5 times the volume of acetone, stir and extract for 7 hours, centrifuge and concentrate under reduced pressure to obtain ramie oil .

[0027] The method for the insecticide prepared by microbial fermentation, comprising the following steps:

[0028] 1) Pretreatment: Neem seeds are pre-soaked and then subjected to steam explosion, the pressure is controlled at 3.5MPa, and the maintenance time is 50s to obtain neem seed explosives; adding petroleum ether for extraction, layering and takin...

Embodiment 3

[0034] The insecticide prepared by microbial fermentation has the following components and parts by weight: 15 parts of caterpillar fungus powder, 10 parts of neem seeds, 2 parts of synergist, 3 parts of centipede, 3 parts of planeweed, and 6 parts of Eupatorium adenophorum. The builder is 40% ramie oil and 60% silicone surfactant.

[0035]The extraction method of ramie oil is as follows: cut and crush the collected fresh ramie plants, pass through a 50-mesh sieve, take ramie plant powder, add 5 times the volume of acetone, stir and extract for 7 hours, centrifuge and concentrate under reduced pressure to obtain ramie oil .

[0036] The method for the pesticide prepared by microbial fermentation, optimization steps:

[0037] 1) Pretreatment: Neem seeds are pre-soaked and steam exploded, the pressure is controlled at 3.5MPa, and the maintenance time is 50s to obtain neem seed explosives; adding petroleum ether solution for extraction, layering and taking the upper phase to obt...

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PUM

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Abstract

The invention discloses application of an insecticide prepared by microbial fermentation in killing lepidopterous and coleopteran pests. The insecticide is made from, by weight, 8-15 parts of Entobactenin powder, 8-15 parts of neem seed, 1-3 parts of a synergist, 1-3 parts of root of sessile stemona, 1-3 parts of fragrant eupatorium herb, and 3-5 parts of Ageratina adenophora. The synergist is composed of 40-60% of castor oil and 40-60% of organosilicon surfactant. The application of the insecticide has the advantages that with the components herein exhibiting synergic effect, the insecticidemay directly act on fat body and midgut cell nuclei of insect larvae and quickly copy to cause the larvae dying of diseases, and can trigger epidemic diseases in species by transverse infection and kill pupas and eggs by longitudinal infection so as to effectively control pest population and their damage; different from microbe-originated insecticides, the insecticide of the invention has high killing speed for pests, and the period from spraying to start of death is only half of a day.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to the use of microbial fermentation to prepare pesticides. Background technique [0002] With the development of modern science and technology, chemical pesticides are widely used because of their advantages such as wide adaptability, simple operation, low cost and remarkable effect. However, due to the low insecticidal specificity of chemical pesticides, the residual effect period in the field is long, and at the same time, it is easy to induce pests to develop resistance to them, especially the pollution of agricultural products and the environment caused by residual chemical pesticides, resulting in miscarriage of women, baby deformities and induced human Various cancers and other diseases, so the use of biopesticides to control pests is increasingly valued by humans. Biological pesticides mainly include microbial-derived pesticides, botanical-derived pesticides, and animal-derived pe...

Claims

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Application Information

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IPC IPC(8): A01N65/46A01N63/00A01P7/04
CPCA01N63/00A01N65/00A01N65/08A01N65/12A01N65/26A01N65/46Y02A50/30
Inventor 谢雨欣
Owner 浦江县美泽生物科技有限公司
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