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 inhi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Formulation Example 1: 40% Penoxsulam·Quintrazone (10:30) dispersible oil suspension

[0035] Penoxsulam 10%, quinclorac 30%, chlorfenapyr 5%, castor oil ethoxylates 8%, calcium dodecylbenzene sulfonate 3%, xanthan gum 3%, silicone Defoamer 0.2%, soybean oil supplemented to 100%. The above materials are put into a sand mill to grind in proportion, and the particle size reaches 3-5 microns, and then a 40% penoxsulam·quinoxazone (10:30) dispersible oil suspension can be prepared.

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

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

[0038]

[0039] According to the above test results, the herbicidal composition made by combining penoxsulam and diclofenac is used alone with 2.5% penoxsulam OD and 20% ...

Example Embodiment

[0040] Formulation Example 2: 10% Penoxsulam·Propane (1:9) EC

[0041] Penoxsulam 1%, propanil 9%, dibenzoxazole acid 4%, tristyryl phenol 4%, castor oil polyoxyethylene ether 8%, mineral spirits supplemented to 100%. After the above materials are fully mixed in proportion, 10% penoxsulam·propanil (1:9) EC is prepared.

[0042] In the indoor activity test, the co-toxicity coefficient and the type of combined effect of Example 2 on rice barnyard were determined. The test results are shown in Table 2.

[0043] Table 2 (calculated based on active ingredients)

[0044]

[0045] According to the above test results, the herbicidal composition made by combining penoxsulam and propanil is compared with 2.5% penoxsulam OD or 16% propanil EC alone. Examples 2 The coordination and synergistic effect on rice barnyard is significant, and the control effect is significantly improved.

Example Embodiment

[0046] Formulation Example 3: 9% Penoxsulam·Grass (1:8) EC

[0047] Penoxsulam 1%, grass dichloride 8%, dibenzoxazole acid 5%, tristyryl phenol 6%, castor oil polyoxyethylene ether 6%, and mineral spirits are supplemented to 100%. After the above materials are fully mixed in proportion, 9% penoxsulam·grass (1:8) EC is made.

[0048] In the indoor activity determination test, the co-toxicity coefficient and the type of combined effect of Example 3 on barnyardgrass were determined. The test results are shown in Table 3.

[0049] Table 3 (calculated based on active ingredients)

[0050]

[0051] According to the above test results, it is fully demonstrated that the herbicidal composition made by combining penoxsulam and grass fossine is compared with 2.5% penoxsulam OD or 90.9% fossulfen EC alone. Example 3 has a significant synergistic and synergistic effect on 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, in particular to a herbicide compounded with penoxsulam. Background technique [0002] In the 1970s and 1980s, chemical herbicides entered China, which brought good news to China's farmland weed control work, and a large number of laborers were freed from heavy manual weeding work. Many herbicides suitable for the control of weeds in rice, wheat, rape, soybean, cotton, sorghum, watermelon and other crop fields have been developed, such as propanil, molinate, diuron, rimsulfuron, trifluridine Sulfuron-methyl sodium salt, clopyralid, prometon, metolachlor, chlorester-sulam, acesulfame, propargyl-flumefenacil, saflufenacil, isoproturon, dichloroquinoline Many herbicides such as oxazone and penoxsulam have also been widely used. However, there are many kinds of weeds in the crop field, and the nature is different, and the damage to the crop growth and the stages of th...

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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