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Synergistic herbicidal composition

A herbicidal composition and a technology for the composition are applied in the field of pesticides, which can solve the problems of inability to synthesize branched-chain amino acids, affect weed cell division, affect protein synthesis, etc., and achieve the effects of saving control costs, improving control effects, and crop safety.

Inactive Publication Date: 2017-01-11
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Pyroxsulam is a sulfonamide selective systemic conduction post-emergence herbicide in wheat fields. The drug is absorbed by weed leaves, sheaths, stems or roots, accumulates at the growth point, and inhibits the synthesis of acetolactate Enzymes, unable to synthesize branched-chain amino acids, which in turn affect protein synthesis, affect weed cell division, cause weeds to stop growing, yellow, and then die

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Formulation example 1: 40% penoxsulam·quinclozone (10:30) dispersible oil suspension concentrate

[0035] Penoxsuam 10%, quinclozone 30%, cloclofenac 5%, castor oil ethoxylate 8%, calcium dodecylbenzenesulfonate 3%, xanthan gum 3%, silicone Defoamer 0.2%, soybean oil added to 100%. The above materials are put into a sand mill in proportion to grind, and the particle size reaches 3-5 microns, and then 40% penoxsulam·quinoxazone (10:30) dispersible oil suspension concentrate can be prepared.

[0036] Indoor activity test: According to the indoor activity test of herbicides, the co-toxicity coefficient and combined action type of Example 1 on barnyardgrass in paddy fields were measured, and the test results are shown in Table 1.

[0037] Table 1 (calculated according to active ingredients)

[0038]

[0039] According to the above test results, it is fully demonstrated that the herbicidal composition prepared by compounding penoxsulam and quinclozone is used alone with...

Embodiment 2

[0040] Formulation example 2: 10% penoxsulam·propanil (1:9) emulsifiable concentrate

[0041] 1% penoxsulam, 9% propanil, 4% isoxadifen, 4% tristyryl phenol, 8% castor oil polyoxyethylene ether, and 100% mineral spirits. After the above materials are fully mixed in proportion, 10% penoxsulam·propanil (1:9) emulsifiable concentrate is prepared.

[0042] In the indoor activity assay test, the co-toxicity coefficient and joint action type of Example 2 on rice barnyardgrass were measured, and the test results are shown in Table 2.

[0043] Table 2 (calculated by active ingredients)

[0044]

[0045] According to the above test results, it is fully demonstrated that the herbicidal composition prepared by compounding penoxsulam and propanil is compared with 2.5% penoxsulam OD or 16% propanil EC used alone. Example 2 The coordination and synergistic effect on rice barnyardgrass is remarkable, and the control effect is significantly improved.

Embodiment 3

[0046] Formulation example 3: 9% penoxsulam·milinadi (1:8) emulsifiable concentrate

[0047] 1% penoxsulam, 8% molinate, 5% isoxadifen, 6% tristyryl phenol, 6% castor oil polyoxyethylene ether, and 100% mineral spirits. After the above materials are fully mixed according to the proportion, 9% penoxsulam · molinate (1:8) emulsifiable concentrate is prepared.

[0048] In the indoor activity assay test, the co-toxicity coefficient and joint action type of Example 3 on green barnyardgrass were measured, and the test results are shown in Table 3.

[0049] Table 3 (calculated by active ingredients)

[0050]

[0051] According to the above test results, it is fully demonstrated that the herbicidal composition prepared after the compounding of penoxsulam and molinate, compared with 2.5% penoxsulam OD, or 90.9% molineate EC alone, Example 3 has a significant synergistic effect on green barnyardgrass, and the control effect is significantly improved.

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Abstract

The invention discloses a synergistic herbicidal composition. The synergistic herbicidal composition is prepared from the following components in percentages by weight: 5% to 60% of effective constituents, 2% to 8% of a safener, 5% to 30% of an addition agent and 5% to 80% of a solid filler or a liquid thinner, wherein the first effective constituent is penoxsulam; and the second effective constituent is any one of dichloroquinoline oxadiazon, propanil, molinate, diuron, orthosulfamuron, trifloxysulfuron sodium, clopyralid, prometryn, metolachlor, cloransulam-methyl, pyroxsulam, flumioxazin, saflufenacil and isoproturon. The weight ratio of the first effective constituent to the second effective constituent is 1: 10 to 10: 1. The synergistic herbicidal composition has the technical effects of economy, high efficiency and high safety, the comprehensive control effect for gramineous weeds, broadleaf weeds and cyperaceae weeds is improved, and particularly the control synergism effect for gramineous weeds is extremely obvious.

Description

Technical field [0001] The invention belongs to the technical field of pesticides and relates to a herbicide, especially a herbicidal composition compounded with penoxsulam. Background technique [0002] The introduction of chemical herbicides into China in the 1970s and 1980s brought good news to China's farmland weed control work, freeing a large number of laborers from the heavy manual weeding work. Many herbicides have been developed that are suitable for weed control in rice, wheat, rape, soybean, cotton, sorghum, watermelon and other crop fields, such as propanil, graminic acid, diuron, pyrimidine, and trifluridine. Sulfuron sodium salt, clopyralid, prometryn, metolachlor, closulfentrazone, saflufenacil, flufenacil, saflufenacil, isopropuron, quinoline Many herbicides such as triacetate and penoxsulam have also been widely used. However, there are many types of weeds in crop fields with different properties, and the damage they cause to crop growth and the stages of ...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/42A01N37/22A01N47/16A01N47/30A01N47/36A01N43/40A01N43/70A01N43/84A01N43/54A01P13/00
CPCA01N43/90A01N37/22A01N43/40A01N43/42A01N43/54A01N43/70A01N43/84A01N47/16A01N47/30A01N47/36A01N2300/00
Inventor 范伟赠陈丰喜徐雅飞
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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