Compositional acaricide and uses thereof

A formulation, the technology of spirodiclofen, which is applied in the field of compound acaricide and its application, can solve the problems such as unsatisfactory control effect, achieve the effect of overcoming the resistance of pest mites, reducing adverse effects, and reducing the dosage

Inactive Publication Date: 2009-04-15
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some orchards with severe resistance, the control effect is often unsatisfactory

Method used

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  • Compositional acaricide and uses thereof
  • Compositional acaricide and uses thereof
  • Compositional acaricide and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1. Processing and application of spirodiclofen and fenpyroximate suspension

[0026] The processing of spirodiclofen and fenpyroximate suspension adopts the ultrafine pulverization method and agglomeration method in the conventional suspending agent processing technology. The active ingredients, dispersant, wetting agent and water are mixed uniformly according to the formula ratio. It is obtained after grinding and or high-speed shearing.

[0027] The following are the formulas of several different contents of suspending agent, which can be further optimized in actual application to obtain the optimal formula that meets the requirements of production process and application.

[0028] Table 1. Processing formula of spirodiclofen and fenpyroximate suspension

[0029]

[0030] According to the requirements of the formula, add the pre-comminuted original medicine and carrier, surfactant, thickener, stabilizer, antifreeze, water, etc. into the sand milling kettle, grin...

Embodiment 2、24

[0036] Example 2. 24% spirodiclofen· fenpyroximate EC

[0037] Spirodiclofen 20%

[0038] Fenfenpyr-ethyl 4%

[0039] N-methylpyrrolidone 4%

[0040] Nongru 600# 8%

[0041] Nongru 500# 5%

[0042] Isopropyl alcohol 3%

[0043] Xylene supplement to 100%

[0044] The above-mentioned ingredients are sequentially added into the mixing kettle according to the formula ratio, and stirred evenly to prepare 24% spirodiclofen·pyridalfen EC.

[0045] The test of the formula to control tobacco spider mites (Tetranychus urticae), the control agent is 240g / L spirodiclofen suspension (produced by Bayer CropScience Co., Germany) and 5% fenpyroximate EC (produced by Beijing Huarong Biohormone Factory). Use spray treatment.

[0046]The 6000-fold solution of this formula has 87.5%, 95.1% and 90.3% control effects at 1 day, 7 days and 30 days after administration, while the control agent 240g / L spirodiclofen suspension is treated with 6000 times the corresponding control effect. The effects were 50....

Embodiment 3

[0048] Example 3. 24% spirodiclofen· fenpyroximate microemulsion

[0049] Spirodiclofen 12%

[0050] Fenfenpyr-ethyl 12%

[0051] Ammonium dodecylbenzene sulfonate 4%

[0052] N-methylpyrrolidone 3%

[0053] Isopropyl alcohol 8%

[0054] Xylene 4%

[0055] Water make up to 100%

[0056] Add the original medicine, solvent, and emulsifier together to dissolve into a homogeneous oil phase, slowly add to water under stirring, and then rapidly invert the phase after stirring and heating, and cool to room temperature to prepare a microemulsion.

[0057] In the experiment of controlling cotton spider mite with this formula, the control agents were 240g / L spirodiclofen suspension (produced by Bayer CropScience Co., Ltd., Germany) and 5% fenpyroximate EC (produced by Beijing Huarong Biohormone Factory), and spray treatment was used in the experiment.

[0058] The 4000-fold solution of the formula has 95.1%, 90.3% and 87.5% control effects at 1, 7 and 30 days after administration, respectiv...

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Abstract

The invention relates to an acaricide composition and application thereof. The active ingredients in the composition are spirodiclofen and fenpyroximate or the spirodiclofen and tebufenpyrad; the mass percentage of the active ingredients is between 10 to 1 and 1 to 10 and between 5 to 1 and 1 to 50; and the active ingredients are processed into any of dosage forms in pesticide application, and the preferable dosage forms are wettable powder, water emulsion, emulsifiable solution, micro-emulsion, a water dispersible granule or tablet, and a suspending agent. The acaricide composition has significant synergism on pest mites for controlling pest mites on plants, and is helpful to reduce the pesticide dosage, reduce the cost, and delay the drug resistance of the pest mites.

Description

Technical field [0001] The invention relates to a pesticide composition and its application, in particular to an acaricidal composition using spirodiclofen, fenpyroximate or pyridalfen as effective ingredients, for preventing and treating harmful mites in agriculture. Background technique [0002] There are many kinds of harmful mites in agriculture in our country, with mixed feeding habits, wide host range, short life cycle, and strong fecundity. They can occur throughout the year under greenhouse conditions, and the generation overlap is serious. Pest mites are highly concealed. Once the number of pest mites increases exponentially, it will cause great harm to crops. Harm from pest mites leads to plant growth stagnation, premature plant senescence, fruit deformity, and severely reduced yield and quality. [0003] At present, in the prevention and control of agricultural pest mites, due to the large number of generations of pest mites and rapid reproduction, it is easy to develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N43/12A01P7/02
Inventor 曹明章孔建陈小霞刘胜召赵军王新军
Owner SHENZHEN NOPOSION AGROCHEM
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