Synergetic acaricidal composition containing cyenopyrafen and spirodiclofen

A technology of pyrafen and spirofen, which is applied in the field of synergistic acaricidal composition and the prevention and control of acarid pests in agriculture, can solve the problems of unfavorable agricultural sustainable development, increased cost of pesticides for farmers, and excessive pesticide residues. To achieve the effect of improving the control effect, solving the poor effect and reducing pollution

Inactive Publication Date: 2015-05-06
JIANGXI ZHONGXUN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the high-intensity use of pesticides, a series of problems such as excessive pesticide residues in agricultural products, aggravated environmental pollution, and increased pesticide costs for farmers have been caused, which is not conducive to the sustainable development of agriculture.

Method used

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  • Synergetic acaricidal composition containing cyenopyrafen and spirodiclofen
  • Synergetic acaricidal composition containing cyenopyrafen and spirodiclofen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0028] Formulation example 5: 80% water-dispersible granules of pyrafen-spirofen-spirofen.

[0029] 20% pyraclofen, 60% spirofen, 5% fatty alcohol polyoxyethylene ether, 5% sodium dodecylbenzenesulfonate, 2% urea, 2% sodium carboxymethyl cellulose, 100% kaolin . Mix the above-mentioned effective ingredients, dispersant, wetting agent, disintegrant, binder and filler uniformly, pulverize with an ultra-fine jet mill, knead, and then add to a fluidized bed granulation dryer for granulation, drying, By sieving, 80% water-dispersible granules of pyrafen-spirofen-spirofen can be obtained.

[0030] Formulation example 6: 20% cyfenpyrid-spirofen-spirofen-ultra-low-volume liquid formulation.

[0031] 15% pyraclofen, 5% spirodiclofen, 10% N-octylpyrrolidone, 15% N, N-dimethylformamide, 2% calcium dodecylsulfonate, octylphenol polyoxyethylene ether 3%, Azone 2%, the second-line oil supplemented to 100%. After stirring and dissolving the above-mentioned active ingredients with a solve...

Embodiment 1

[0036] Biological Assay Example 1: Indoor Joint Toxicity Test of Betrafenfen and Spirofen to Citrus Spider Spider.

[0037] Insects to be tested: Citrus red spider nymphs collected in the field and bred indoors.

[0038] The test agent: 96% of the original drug of fenpyrafen and 98% of the original drug of spirofen.

[0039] The test method adopts the leaf butterfly spray method, and the specific operation method is as follows:

[0040] Choose healthy citrus leaves, make leaf butterflies with a puncher, place a wet sponge block in a petri dish, put filter paper on it, put leaf butterflies on the filter paper, put 2 leaf butterflies in each dish, choose healthy, old Inoculate citrus spider mite nymphs with the same period of time to leaf butterflies, and inoculate 20 heads per leaf butterfly.

[0041]Place the petri dish connected with the leaf butterfly under the potter spray tower, spray under 50PSI pressure, the spray volume is 1ml, take out the petri dish after settling f...

Embodiment 2

[0050] Biological Assay Example 2: Field efficacy test of the combination of pyraclofen and spirodiclofen on citrus spider mite

[0051] Adopt 30% pyraclofen-spirofen suspending agent (preparation embodiment 1) to be used for preventing and treating citrus spider mite, investigate the insect population base before spraying, and investigate the number of residual live mites respectively after 7d, 14d, and 30d after the spraying. Check 2 plants in the plot, check 5 leaves of each plant according to 4 directions of east, west, north, south, respectively, check 40 leaves in each plot, record the number of live mites, and calculate the control effect. The control effect calculation method is as follows:

[0052] Control effect (%) = (1-CK 1 ×Pt 1 / CK 2 ×Pt 2 )×100.

[0053] Among them: CK 1 Represents the number of worms in the control area before the drug; Pt 1 Represents the number of insect populations after treatment in the treatment area;

[0054] CK 2 Represents the ...

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Abstract

The invention relates to a synergetic acaricidal composition containing cyenopyrafen and spirodiclofen, wherein the weight ratio of cyenopyrafen and spirodiclofen is 20: 1 to 1:20 and the total weight of cyenopyrafen and spirodiclofen accounts for 5-85wt% of the acaricidal composition. The composition with two effective ingredients compounded has an obvious synergetic effect and has an excellent preventing and controlling effect on various mite damages on crops and flowers such as fruit trees, vegetables, cotton, tea trees and the like. The synergetic acaricidal composition provided by the invention, the preventing and controlling effect is improved and the use level of a pesticide is reduced, so that the cost is lowered and the environmental pollution is reduced, thereby facilitating resistance government of mite damages. The acaricidal composition which is popularized and applied has relatively huge economical and social benefits.

Description

technical field [0001] The invention relates to a pesticide composition and its application field, in particular to a synergistic acaricidal composition with pyraclofen and spirodiclofen as active ingredients, which is mainly used in the prevention and control of acarid pests in agriculture. Background technique [0002] Cyenopyrafen: It belongs to a new type of pyrazole acaricide. The mechanism of action is that the agent is metabolized into a hydroxyl form and activated to produce activity. This hydroxyl form inhibits the mitochondria by disturbing the complex II in the respiratory electron transport chain. Efficacy, thereby hindering electron transfer and destroying the process of oxidative phosphorylation. It is mainly used to control various harmful mites on eggplant, pepper, cucumber, pear, strawberry, citrus and other fruits, vegetables, and tea. It has good quick-acting and long-lasting Effectiveness. [0003] Spirodiclofen: it is a spirocyclic tetronic acid acarici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01P7/02A01N43/12
Inventor 张志伟王贵新冷忠国陈佛祥吴泽伟王礼文朱刚
Owner JIANGXI ZHONGXUN AGROCHEM
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