Biogenic pesticide containing xanthoxylin and abamectin and preparation method thereof

A bio-sourced pesticide and abamectin technology, applied in botany equipment and methods, biocides, animal repellents, etc., can solve problems such as environmental pollution, poor stability of insecticide efficacy, waste, etc., and achieve insecticide Wide range, obvious synergistic effect, and low application concentration

Active Publication Date: 2013-08-28
四川嘉智生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are following disadvantages in the existing biogenic insecticides produced by Xanthoxylin: when Xanthoxylin is used to prepare insecticidal products, most of them are emulsifiable concentrate preparations, which have a greater impact on the human body and serious environmental pollution when used; Abamectin insecticides are mostly single-dose or simple compound preparations, resulting in poor stability of insecticidal efficacy and great influence by the environment; and most of the avermectins on the market are single-dose or compounded with chemical pesticides. A certain amount of resistance has been developed, and in order to achieve the control effect, the dosage is also increasing
In addition, at present, many manufacturers adopt the method of organic solvent extraction when preparing xanthoxylin, such as the preparation method of xanthoxylin insecticide announced in Chinese patent CN200410021715. In prime time, the fruit and / or leaves of Zanthoxylum bungeanum are crushed, soaked in one or several mixtures of methanol, ethanol, formaldehyde, and mixed alcohols, then extracted with acetone, butylene glycol ester, dioctyl ester, etc., and extracted with organic solvents More volatile harmful substances will be produced, which will pollute the environment. Due to the large amount of residual organic solvents in the fruit waste residue, the fruit waste residue is also difficult to handle, and other single extraction methods also make the extraction utilization rate of xanthanin very low, resulting in extreme big waste

Method used

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  • Biogenic pesticide containing xanthoxylin and abamectin and preparation method thereof
  • Biogenic pesticide containing xanthoxylin and abamectin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The Zanthoxylum bungeanum fruit is crushed, the crushed material is processed by a combination of direct steam distillation and pressing, and oil-water separation is carried out on the distilled and squeezed liquid. When separating oil and water, the method of leaving the mixed liquid to stand will make the oil float to the upper layer, and the water will be in the lower layer, then remove the water in the lower layer to obtain the upper layer oil, concentrate the separated pepper oil, cool down and crystallize, and centrifuge to separate the crystals. The recrystallization method is used to purify the crystals to obtain the prickly ash, because the oil obtained by distillation and pressing is only the crude product containing prickly ash, and also contains other vegetable oils. The prickly ash oil contains a part of prickly ash, so it needs to be concentrated and crystallized to extract the prickly ash in the prickly ash oil Xanthoxylin, and then recrystallized and puri...

Embodiment 2

[0039] The Zanthoxylum bungeanum fruit is crushed, and the pulverized material is processed by direct steam distillation and pressing, and the oil and water are separated from the distilled and squeezed liquid, and the separated Zanthoxylum bungeanum oil is concentrated, cooled and crystallized, and the crystals are separated by centrifugation, and the crystals are separated by gravity. Purify the crystalline substance by crystallization to obtain xanthoxylin.

[0040] Put 12.9Kg of xanthoxylin, 100g of avermectin, and 20Kg of soybean oil into a jacketed stirring tank, raise the temperature to 55°C and stir to dissolve for 2 hours, then add 3Kg of thioketone, 2,6-di-tert-butyl- 1Kg of 4-methylphenol and 10Kg of alkylphenol polyoxyethylene ether phosphate were prepared into an oil phase. Add 5Kg of magnesium chloride, 500g of xanthan gum, and 47.5Kg of purified water into another jacketed kettle, raise the temperature to 55°C, stir and mix for 1 hour, and prepare an aqueous pha...

Embodiment 3

[0042] The Zanthoxylum bungeanum fruit is crushed, and the pulverized material is processed by direct steam distillation and pressing, and the oil and water are separated from the distilled and squeezed liquid, and the separated Zanthoxylum bungeanum oil is concentrated, cooled and crystallized, and the crystals are separated by centrifugation, and the crystals are separated by gravity. Purify the crystalline substance by crystallization to obtain xanthoxylin.

[0043] Put 100g of prickly ash, 4.9Kg of abamectin, and 30Kg of turpentine into a jacketed stirring tank, raise the temperature to 55°C and stir to dissolve for 2 hours, then add 3Kg of organic silicon, 1Kg of butyl hydroxyanisole, fatty alcohol poly 13Kg of oxyethylene ether was prepared into an oil phase. Add 5 Kg of urea, 500 g of magnesium aluminum silicate, and 35.5 Kg of distilled water into another jacketed kettle, raise the temperature to 55° C., stir and mix for 1 hour, and prepare an aqueous phase. Finally, ...

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Abstract

The invention discloses a biogenic pesticide containing xanthoxylin and abamectin and a preparation method thereof. The biogenic pesticide is used for killing insects; and the biogenic pesticide containing the xanthoxylin and the abamectin is formed from the following components in parts by weight: 0.01-12.9 parts of the xanthoxylin, 0.1-10 parts of the abamectin, 0.5-5 parts of a synergist, 0.1-5 parts of a sterilizing agent, 1-20 parts of an emulsifying agent, 1-30 parts of plant oil, 1-8 parts of an anti-freezing agent, 0.1-2 parts of a thickening agent and 20-70 parts of water. According to the biogenic pesticide disclosed by the invention, any chemical solvent does not need to be added into effective components of the biogenic pesticide; the water-based preparation can be widely applied to prevention and treatment of insect pests of places with relatively concentrated people, such as parks, green lands, streets, and family gardens; and the biogenic pesticide is also applicable to the prevention and the treatment of fowl and livestock fur injurious insects. A production process of the xanthoxylin does not use an organic solvent; and extracted pepper fruit waste dregs are composted and fermented and are returned back to fields to be used as a base fertilizer to be applied. In the whole product production process, the energy consumption is low, and equipment investment is small and the occupying area is small; and sources of raw and auxiliary materials are wide and are easy to obtain.

Description

technical field [0001] The invention relates to the technical field of biological source pesticides, in particular to a biological source pesticide containing xanthanin and abamectin and a preparation method thereof. Background technique [0002] Pesticides play an important role in the control of pests and diseases in agricultural production. However, many pesticides are toxic to the human body, and the pesticides lost to the soil or the air cause serious environmental pollution. For this reason, a large number of highly toxic chemical pesticides have been banned, and many pesticide formulations also produce many environmental pollutants during processing. It is unfriendly to operators and the environment during application, such as emulsifiable concentrate and wettable powder, etc. will also be phased out; with the acceleration of urbanization, parks and green spaces and home gardening continue to increase, and to solve the problem of pesticide application safety in public...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N55/10A01P7/04A01N35/04
Inventor 王军彭山英何鹏王平钟利
Owner 四川嘉智生态科技有限公司
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