Biological pesticide and preparation method thereof

Abstract

The invention discloses biological pesticide and a preparation method thereof. The biological pesticide is prepared by taking mugwort, pumpkin stem and leaf, herba menthae, corn straw and corncob as raw materials and fermenting through bacillus amyloliquefaciens. The weight ratio of each component in the raw materials is as follows based on the total weight of the raw materials: 55 to 65 percent of the corn straw, 25 to 30 percent of the corncob, 2.5 to 5 percent of the mugwort, 5 to 10 percent of the pumpkin stem and leaf and 2.5 to 5 percent of the herba menthae. By adopting the biological pesticide disclosed by the invention, the disadvantages of existing biological pesticide are overcome and the biological pesticide can be used for preventing and controlling diseases and insect pests of various crops and is easy to biologically degrade; the biological pesticide has no residues in the harvested crops; and when the biological pesticide is used as pesticide, the biological pesticide also has the effect of fertilizer and can be used for increasing the production of the crops.

Description

technical field

[0001] The invention belongs to the field of pesticides, and in particular relates to a biological pesticide and a preparation method thereof. Background technique

[0002] In order to prevent and control pests and diseases, pesticides need to be used in all growth stages of crops. The currently commonly used pesticides are highly toxic chemical products, and these pesticides have certain residues in the harvested crops, seriously endangering the health of the eaters and causing serious damage to the ecological environment.

[0003] With the improvement of living standards and the enhancement of environmental protection awareness, people urgently need green organic agricultural products without pesticide residues, and biological pesticides and biological bacterial fertilizers have emerged as the times require. The advantages of existing biopesticides are low toxicity, easy degradation, and environmental protection, but there are also some disadvantages. For ...

Examples

Embodiment 1

[0022] A bio-pesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 65% of corn stalks, 25% of corncobs, 2.5% of wormwood, 5% of pumpkin stems and leaves, and 2.5% of dandelion.

[0023] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.

Embodiment 2

[0025] A biopesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 60% of corn stalks, 30% of corn cobs, 2.5% of wormwood, 5% of pumpkin stems and leaves, and 2.5% of dandelion.

[0026] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.

Embodiment 3

[0028] A biopesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 55% of corn stalks, 30% of corncobs, 2.5% of wormwood, 10% of pumpkin stems and leaves, and 2.5% of dandelion.

[0029] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.

technical field

[0001] The invention belongs to the field of pesticides, and in particular relates to a biological pesticide and a preparation method thereof. Background technique

[0002] In order to prevent and control pests and diseases, pesticides need to be used in all growth stages of crops. The currently commonly used pesticides are highly toxic chemical products, and these pesticides have certain residues in the harvested crops, seriously endangering the health of the eaters and causing serious damage to the ecological environment.

[0003] With the improvement of living standards and the enhancement of environmental protection awareness, people urgently need green organic agricultural products without pesticide residues, and biological pesticides and biological bacterial fertilizers have emerged as the times require. The advantages of existing biopesticides are low toxicity, easy degradation, and environmental protection, but there are also some disadvantages. For ...

Examples

Embodiment 1

[0022] A bio-pesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 65% of corn stalks, 25% of corncobs, 2.5% of wormwood, 5% of pumpkin stems and leaves, and 2.5% of dandelion.

[0023] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.

Embodiment 2

[0025] A biopesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 60% of corn stalks, 30% of corn cobs, 2.5% of wormwood, 5% of pumpkin stems and leaves, and 2.5% of dandelion.

[0026] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.

Embodiment 3

[0028] A biopesticide, the weight ratio of each component is based on the total weight of raw materials, respectively: 55% of corn stalks, 30% of corncobs, 2.5% of wormwood, 10% of pumpkin stems and leaves, and 2.5% of dandelion.

[0029] The preparation method is as follows: measure various raw materials in proportion, pulverize and stir to mix, and steam sterilize (Systec HX-540 cabinet autoclave) after mixing, and then add Bacillus amyloliquefaciens seed liquid to the raw materials and mix them Carry out solid-state fermentation, the fermentation temperature is 25-30 DEG C, and the fermentation time is 7-15 days. After taking it out, dry it and grind it through a 20-mesh sieve to get the product.