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Method for preparing biological pesticide by utilizing tomato stems and leaves

A biopesticide, stem and leaf technology, applied in the fields of biopesticides, biopesticides, bacteriostats, and plant protection agents prepared from tomato stems and leaves, can solve complex preparation processes, large environmental pollution, and resource utilization. Low-level problems, to achieve the effect of simple preparation method, no pollution to the environment, and low production cost

Pending Publication Date: 2019-10-15
渭南职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need for a novel preparation method of botanical biopesticides to solve the problems of complex preparation process, low resource utilization rate, and large environmental pollution in the existing preparation technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of method utilizing tomato stem and leaf to prepare biopesticide comprises the following steps:

[0025] (1) Raw material preparation: prepare a certain amount of dried tomato stem and leaf tissue, cut it into pieces for later use; prepare appropriate amount of brown sugar, yeast and water;

[0026] (2) Fermentation: Weigh the dry tissue of tomato stems and leaves, brown sugar, saccharomyces cerevisiae, and water in amounts of 300 grams, 300 grams, and 0.1 grams, respectively, and put them into glass jars, then add 3 liters of water, mix well and Press the tissue floating on the water under the liquid surface, cover the lid, and ferment in the dark for 30 days; shake the glass jar every day for the first 3 days of the fermentation process to ensure that the raw materials are evenly mixed; and keep the tomato stems and leaves during the entire fermentation process Dried tissue is below the liquid level;

[0027] (3) Post-treatment of fermented liquid: after the f...

Embodiment 2

[0030] A kind of method utilizing tomato stem and leaf to prepare biopesticide comprises the following steps:

[0031] (1) Raw material preparation: prepare a certain amount of dried tomato stem and leaf tissue, cut it into pieces for later use; prepare appropriate amount of brown sugar, yeast and water;

[0032] (2) Fermentation: Weigh the chopped tomato stem and leaf dry tissue, brown sugar, yeast, and water in an amount of 150 grams, 300 grams, and 0.5 grams, respectively, and put them into a glass jar, then add 3 liters of water, mix well and Press the tissue floating on the water under the liquid surface, cover the lid, and ferment in the dark for 30 days; shake the glass jar every day for the first 3 days of the fermentation process to ensure that the raw materials are evenly mixed; and keep the tomato stems and leaves dry during the entire fermentation process The tissue is below the liquid surface;

[0033] (3) post-treatment of fermented liquid: after the end of the ...

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Abstract

The invention provides a method for preparing a biological pesticide by utilizing tomato stems and leaves, and is characterized in that the method comprises the following steps: raw material preparation, fermentation, and post-treatment of fermentation liquid. The method has the benefits that the tomato planting wastes, namely tobacco stems and leaves, are used as raw materials, and a stock solution of the fermentation liquid is directly sprayed onto plants for insect killing, bacteria inhibition and plant protection without the need to dry, pulverize, extract and concentrate the materials; atthe same time, the extraction of tomatidine by fermentation is more efficient than the extraction of tomatidine by directly using water, alcohol and acid water; the acidic condition of the fermentation liquid enables tomatin to be converted into the tomatidine, which is less in toxicity; sugar does not need to be removed after the fermentation is finished, and can be used as a plant nutrient andadhesive to facilitate reagent attachment and prevent evaporation of water; in addition, the fermentation reaction conditions are mild, both manpower and material resources are saved, no additional alcohol and acid are needed to be added, the cost is reduced, and no pollution is caused to the environment.

Description

technical field [0001] The invention belongs to the technical field of biochemical industry, and relates to a biological insecticide, a bacteriostatic agent and a plant protection agent and a preparation method thereof, in particular to a method for preparing biological pesticides from tomato stems and leaves. Background technique [0002] At present, the frequent use of chemical pesticides in our country has resulted in excessive pesticide residues in agricultural products. The residual pesticides have brought great harm to the human body and the environment, and at the same time restricted the export of agricultural products. With the enhancement of people's health and environmental awareness, the demand for organic food and green and pollution-free food is also increasing, which makes natural extraction, mild, non-toxic plant-derived biopesticides become people's first choice, but currently There are very few types of biopesticides available in the market, and there is an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/38A01P7/04A01P3/00
CPCA01N65/00A01N65/38Y02A50/30
Inventor 薛萍史俊卿付宏岐
Owner 渭南职业技术学院
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