Composite fumigation insecticide and preparation method thereof

A technology of pesticides and auxiliaries, applied in the field of pesticides, can solve the problems of insect resistance and few substitutes, and achieve the effect of slowing down the resistance of insects

Inactive Publication Date: 2014-04-16
JIANGSU JIXIAN GREEN CHEM TECH RESINST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, allyl isothiocyanate is used alone, and there are few alternatives, which often leads to the generation of pest resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Be that 1:2 ratio is taken by mass ratio and be 5% propylene isothiocyanate and litsea cubeba oil by weighing total mass percent, take by weighing 10% magnesium stearate by mass percent, 10% ethyl formate, Add to the solvent water in turn and stir evenly.

[0016] Determination of fumigation effect:

[0017] Use a micro-sampler to measure 1mL of the prepared medicinal solution onto the absorbent cotton ball, quickly put it into a stoppered conical flask, cover it, place the lively adult rice weevil in a gauze bag, and hang it in the conical flask. 10 heads per bottle, repeated three times, with the blank group as the control, after 24 hours, the lethality rate reached 83.3%.

Embodiment 2

[0019] Be that 1:2 ratio is taken by mass ratio and be that propylene isothiocyanate and litsea cubeba oil of 25% are taken by total mass percentage, 15% magnesium stearate, 8% ethyl formate are taken by mass percentage, Add to the solvent water in turn and stir evenly.

[0020] Determination of fumigation effect:

[0021] Use a micro-sampler to measure 1mL of the prepared medicinal solution onto the absorbent cotton ball, quickly put it into a stoppered conical flask, cover it, place the lively adult rice weevil in a gauze bag, and hang it in the conical flask. 10 heads per bottle, repeated three times, with the blank group as the control, after 24 hours, the lethal rate reached 90.0%.

Embodiment 3

[0023] Be that 1:2 ratio is taken by mass ratio and be 50% propylene isothiocyanate and litsea cubeba oil by weighing total mass percent, take by weighing 20% ​​magnesium stearate by mass percent, 5% ethyl formate, Add to the solvent water in turn and stir evenly.

[0024] Determination of fumigation effect:

[0025] Use a micro-sampler to measure 1mL of the prepared medicinal solution onto the absorbent cotton ball, quickly put it into a stoppered conical flask, cover it, place the lively adult rice weevil in a gauze bag, and hang it in the conical flask. 10 heads per bottle, repeated three times, with the blank group as the control, after 24 hours, the lethal rate reached 96.7%.

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PUM

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Abstract

The invention provides a composite fumigation insecticide and a preparation method thereof. The composite fumigation insecticide comprises the following compositions in parts by weight: 5-50 parts of allyl isothiocyanate and cubeba oil, 10-20 percent of an emulsifier, 5-10 percent of an assistant and a dissolvent in balancing amount, wherein the allyl isothiocyanate and cubeba oil are at a mass ratio of 1:2-1:4. The preparation method of the composite fumigation insecticide comprises the step that the allyl isothiocyanate, the cubeba oil, the emulsifier and the assistant are added to the dissolvent and agitated, so as to obtain the product. According to the composite fumigation insecticide, two effective compositions can be supplemented and prompted with each other, not only are pests killed in short time, but also the generation of the insecticide resistance can be relieved; in addition, the effective compositions of the composite fumigation insecticide are all natural products and do not pollute the environment.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a composite fumigation insecticide and a preparation method thereof. Background technique [0002] Fumigation insecticides generally refer to agents that can turn into vapor at room temperature to poison insects and germs. There are three types of commonly used fumigants, one is solid fumigants, such as p-dichlorobenzene, aluminum phosphide, etc.; the other is liquid fumigants, such as chloropicrin, dibromoethane, etc.; the third is gas fumigants, such as Methyl bromide, ethylene oxide, etc. Most of these fumigation insecticides are chemical raw materials or organic solvents. When put into farmland or orchards, although they can kill pests and germs, they also pollute the environment and may even endanger the health and safety of users. Therefore, research and develop a kind of novel environment-friendly fumigation insecticide, seem particularly need. [0003] Allyl isothiocyanate, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/24A01N25/18A01P7/04A01N47/46
CPCY02A50/30
Inventor 李可庆
Owner JIANGSU JIXIAN GREEN CHEM TECH RESINST
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