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Composite insecticidal and acaricidal nano aqueous solution containing fenpropathrin and emamectin benzoate and application thereof

A technology of emamectin and fenpropathrin, which is applied in the field of pesticides, can solve problems such as hidden dangers, environmental hazards, and inability to protect crops, and achieve the effect of reducing the amount of pesticides used, and reducing production and use costs

Inactive Publication Date: 2020-04-10
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Insecticide varieties containing a single component often have defects in the control of pesticide pests: continuous use is easy to produce resistance, narrow insecticidal spectrum, cannot provide comprehensive protection for crops, and the cost of pesticides for farmers is high.
At present, the conventional dosage forms of fenpropathrin and emamectin benzoate are mainly emulsifiable concentrates, which contain a large amount of organic solvents, which have potential safety hazards in production and cause serious harm to the environment in field use.

Method used

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  • Composite insecticidal and acaricidal nano aqueous solution containing fenpropathrin and emamectin benzoate and application thereof
  • Composite insecticidal and acaricidal nano aqueous solution containing fenpropathrin and emamectin benzoate and application thereof
  • Composite insecticidal and acaricidal nano aqueous solution containing fenpropathrin and emamectin benzoate and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Formula: 20g fenpropathrin, 1g emamectin benzoate, 10g fatty alcohol polyoxyethylene ether, 5g alkylphenol formaldehyde resin polyoxyethylene, add water to 100g.

[0045] Preparation method: Weigh 20g (based on active ingredients, the same below) fenpropathrin technical material, 1g emamectin benzoate, 10g fatty alcohol polyoxyethylene ether, 5g alkylphenol formaldehyde resin polyoxygen Ethylene was mixed, stirred at a rotating speed of 85 rpm for 0.5 h, kept stirring, added 64 g of water, and continued to stir for 1 h to obtain 21% fenpropathrin emamectin benzoate nano-aqueous solution.

[0046] The appearance of the nano water agent of this embodiment is transparent and yellowish, the viscosity is 180 mPa·s, and the average particle diameter is 12.0 nanometers.

[0047] In this example, the nano water formulation in this example did not precipitate after storage at 0°C for 7 days and heat storage at 54°C for 14 days, and was still stable.

[0048]The nano-aqueous age...

Embodiment 2

[0050] Formula: 10g fenpropathrin, 1g emamectin benzoate, 3g styrylphenol polyoxyethylene ether, 3g fatty alcohol polyoxyethylene ether, 2g alkylphenol formaldehyde resin polyoxyethylene ether, Add water to 100g.

[0051] The preparation method is the same as in Example 1, and 11% of fenpropathrin emamectin benzoate nano-aqueous agent is obtained.

[0052] The appearance of the nano water agent of this embodiment is transparent and yellowish, the viscosity is 195 mPa·s, and the average particle diameter is 13.6 nanometers.

[0053] In this example, the nano water formulation in this example did not precipitate after storage at 0°C for 7 days and heat storage at 54°C for 14 days, and was still stable.

[0054] The nano-aqueous agent of this embodiment can be miscible with water quickly after entering water, forming a completely transparent solution, and the dilution stability is qualified.

Embodiment 3

[0056] Formula: 5g fenpropathrin, 1g emamectin benzoate, 1g alkylphenol formaldehyde resin polyoxyethylene ether, 3g fatty alcohol polyoxyethylene ether sodium sulfate, add water to 100g.

[0057] The preparation method is the same as in Example 1, and 6% of fenpropathrin emamectin benzoate nano-aqueous solution is obtained.

[0058] The appearance of the nano water agent of this embodiment is transparent and slightly yellow, the viscosity is 185 mPa·s, and the average particle diameter is 18.5 nanometers.

[0059] In this example, the nano water formulation in this example did not precipitate after storage at 0°C for 7 days and heat storage at 54°C for 14 days, and was still stable.

[0060] The nano-aqueous agent of this embodiment can be miscible with water quickly after entering water, forming a completely transparent solution, and the dilution stability is qualified.

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Abstract

The invention discloses a composite insecticidal and acaricidal nano aqueous solution containing fenpropathrin and emamectin benzoate. The insecticidal composition takes fenpropathrin and emamectin benzoate as insecticidal and acaricidal active ingredients, and comprises the following components in percentage by weight: 3 to 25 percent of fenpropathrin and emamectin benzoate, 5 to 20 percent of apesticide adjuvant and the balance of water. The weight ratio of the fenpropathrin to the emamectin benzoate is 20:1-1:20. The nanoscale micelle formed by the surfactant is used for bearing fenpropathrin and emamectin benzoate which are insoluble in water, and the active components exist in the nano aqueous solution in the form of nanoscale particles, so that the nano aqueous solution is beneficial to attachment, spreading and permeation on a target and is more resistant to rain wash. The two effective components can generate a synergistic effect, lepidoptera pests and mite pests on crops canbe prevented and treated, the insecticidal speed is high, the lasting period is long, and the prevention and treatment effect is obviously higher than that of a single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a compound insecticidal and acaricidal nano-water agent containing fenpropathrin and emamectin benzoate and its application. Background technique [0002] Fenpropathrin, chemical name: 2-cyano-3-phenoxybenzyl-2,2,3,3-tetramethylcyclopropanoate. High-efficiency, broad-spectrum pyrethroids with contact and repellent effects, as well as stomach toxicity. In addition to the general synthetic pyrethrin properties, it has good effects on a variety of crop spider mites, so it has the advantage of killing both insects and mites. Highly effective against Lepidoptera larvae and effective against Diptera or Hemiptera pests. It can be used to control pests on cotton, fruit trees, vegetables, tea and flowers. [0003] Emamectin Benzoate, referred to as emamectin benzoate, molecular formula: C 56 h 81 NO 15 . Chemical name: 4'-epi-methylamino-4'-deoxyabamectin B1 benzoate. Emamectin benzoate is...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N43/90A01P7/02
CPCA01N43/90A01N53/00
Inventor 马诚义郭祥蕊郭崇友陈叶青白杰
Owner NANJING HUAZHOU PHARMA
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