CN102027968A - Synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof - Google Patents
Synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof Download PDFInfo
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- CN102027968A CN102027968A CN2009100359013A CN200910035901A CN102027968A CN 102027968 A CN102027968 A CN 102027968A CN 2009100359013 A CN2009100359013 A CN 2009100359013A CN 200910035901 A CN200910035901 A CN 200910035901A CN 102027968 A CN102027968 A CN 102027968A
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Abstract
The invention discloses a synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof. The main active ingredients of the herbicidal composition are the clopyralid and the bensulfuron-methyl in a mass ratio of 1-70:1-60. The synergistic herbicidal composition can be used for controlling post-emergence weeds in a wheat field, and particularly has an obvious effect of controlling various broadleaf weeds in the wheat field. Compared with a single-component herbicide, the herbicidal composition delays resistance of weeds, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat and afterculture crops.
Description
Technical field
The invention belongs to technical field of pesticide, especially the weed killer herbicide field relates to the binary built agent of clopyralid and bensulfuron-methyl.This herbicidal composition can be applicable to the wheat paddock stalk leaf weedicide.
Background technology
Wheat is the staple food crop of China, it is reported that annual national wheat has crop smothering in various degree, if not weeding of field can make its underproduction more than 50%.In order to reduce the economic loss that crop smothering causes, reduce labor intensity, also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
In recent years, along with increasing and the extensive popularization of chemical control technology in agricultural production of weed killer herbicide kind, chemical weed control has been widely used in each period of wheat growth.Because the different regions climate characteristic is different with planting habit, its sowing and the time of cultivating there are differences, but basic chemical weed control mode is identical, and what need consideration mainly is factors such as temperature, soil property, kind and farming custom.The choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, cultivate cost but also can reduce, reach the purpose of volume increase.
Clopyralid (clopyralid), chemical name: 3,6-dichloropyridine-2-carboxylic acid, its structural formula is:
Clopyralid is a kind of pyridines weed killer herbicide, after the weeds dispenser, absorb by blade or root, in plant corpus, divide a word with a hyphen at the end of a line up and down, pass to whole plant rapidly, its mechanism of action that kills grass produces excessive ribonucleic for promoting the formation of plant nucleic acid, causes root growth excessive, stem and leaf growth deformity, nutrient consumption, vascular bundle transporting function is obstructed, and causes weeds death.Be applicable to paddy field, can prevent and kill off composite family, pulse family, Solanaceae and Umbelliferae weeds effectively.Clopyralid is selective in gramineous crop, comprises in Brassic beet and other beet crops, flax, strawberry and the allium crop that at multiple broad leaf crop same selectivity is also arranged.Its broad weed-killing spectrum can be prevented and kill off annual weed and dark root perennial weed effectively.But it is narrower to killing the grass spectrum, and is invalid to field bindweed etc., is difficult to thoroughly kill and removes the wheat paddock broad leaved weed, therefore, needs in the use and other weed killer herbicides very usefulness, could arrive desirable herbicidal effect.
Bensulfuron-methyl (bensulfuron-methyl), a kind of sulfonylurea herbicide, chemical name: α-[(4, the amino carbonyl amino of 6-dimethoxypyridin-α-yl)] the sulfonyl methyl } methyl benzoate, its chemical formula is: C
16H
18N
4O
7S, structural formula is:
Bensulfuron-methyl is a selectivity inner sucting conduction type herbicides for use in paddy.Life in 1 year and perennial broadleaf weed and nutgrass flatsedge can be effectively prevented and treated, other positions can be absorbed and pass to by weeds root, leaf.To wheat safety, using method is flexible.But along with a large amount of uses of bensulfuron-methyl, a lot of weeds have produced resistance to it successively, have had a strong impact on the use of bensulfuron-methyl.
The wheat paddock weed killer herbicide is limit by crop safety at present, it is also limited to kill the grass spectrum, be used alone the agent of weed killer herbicide list and can not control the generation of wheat paddock weeds completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily this season crop or succession crop of dispenser.Therefore, the present invention selects to kill grass spectrum difference, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the clopyralid of pluses and minuses complementation and bensulfuron-methyl uses, so both enlarged and killed the grass spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The purpose of this invention is to provide a kind of Synergistic herbicide compositions that contains clopyralid and bensulfuron-methyl.
Another object of the present invention provides this Herbicidal combinations is used for the weed killer herbicide of wheat paddock weeding in preparation application.
A kind of Synergistic herbicide compositions that contains clopyralid and bensulfuron-methyl is characterized in that this Herbicidal combinations is main active ingredient with clopyralid and bensulfuron-methyl, and the mass ratio of clopyralid and bensulfuron-methyl is 1～70: 1～60.The mass ratio of preferred clopyralid and bensulfuron-methyl is 1～40: 1～30, and most preferably mass ratio is 1～20: 1～20.
In Synergistic herbicide compositions, the two quality percentage composition in Herbicidal combinations of clopyralid and bensulfuron-methyl is 1～85%, and the preferred mass percentage composition is 10～80%.Active ingredient of the present invention is present in the composition with the synergy effective dose.
In the binary built preparation of clopyralid of the present invention and bensulfuron-methyl, except active ingredients such as clopyralid and bensulfuron-methyl, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations and be mixed with any one formulation that allows on the agricultural chemicals.Preferably be processed into suspending agent, wetting powder, soluble powder, water dispersible granules or granule.Can adopt when using and conventional method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc. for use, and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can singly be used or mixing and usefulness, also can add other auxiliary material that allows on the pesticidal preparations.
" % " of the present invention is weight percentage.
Synergistic herbicide compositions of the present invention can be used at the weed killer herbicide that preparation is used for the wheat paddock postemergence weed control, particularly uses to have remarkable result in preparation is used for preventing and kill off the weed killer herbicide of wheat paddock broad leaved weed.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.Clopyralid and bensulfuron-methyl all are inner sucting conduction type post-emergence herbicides, that is to say, Herbicidal combinations of the present invention can kill weeds by the conduction of plant leaf and root, can greatly improve the removing activity of Herbicidal combinations.
2, enlarge herbicidal spectrum.Clopyralid can be prevented and kill off broad leaved weed, and bensulfuron-methyl can be prevented and kill off broad leaved weed and grassy weed, and after both mixed, herbicidal spectrum was wideer.
3, delay the weeds resistance.Because weeds easily produce resistance to bensulfuron-methyl, and contain clopyralid in the Herbicidal combinations of the present invention, make medicament can prevent effectively weeds except anti-bensulfuron-methyl in addition, having reduced the pesticide resistance of weeds, prolonged the service life of medicament.
4, safe.Because the use content of various active ingredients has reduced, and makes medicament under the prerequisite that has improved drug effect, its safety to wheat and succession crop also is improved.
Therefore, Synergistic herbicide compositions of the present invention can be used in the weed killer herbicide of preparation wheat paddock postemergence weed control, particularly uses in preparation is used for preventing and kill off the weed killer herbicide of wheat paddock broad leaved weed.
Embodiment
Embodiment 1
Bensulfuron-methyl 1%, clopyralid 19%, alkylphenol polyoxyethylene 14%, phenethyl phenol polyethenoxy ether 15%, water to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 20% suspending agent.
Embodiment 2
Bensulfuron-methyl 8%, clopyralid 32%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ammonium sulfate 4%, sodium lignin sulfonate to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 40% soluble powder.
Embodiment 3
Bensulfuron-methyl 10%, clopyralid 70%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 80% water dispersion granule.
Embodiment 4
Bensulfuron-methyl 60%, clopyralid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, wooden sodium iodate 5%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 70% wetting powder.
Embodiment 5
Bensulfuron-methyl 39%, clopyralid 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, ammonium sulfate 10%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 41% granule.
Embodiment 6
Bensulfuron-methyl 1%, clopyralid 9%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, ammonium sulfate 10%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 10% granule.
Embodiment 7
Bensulfuron-methyl 1%, clopyralid 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, wooden sodium iodate 5%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 2% wetting powder.
Embodiment 8
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient acalypha copperleaf.
Test method: the seed of quantitative acalypha copperleaf is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat that acalypha copperleaf 3～6 leaves during the phase, do the processing of spraying on the composition spray in crawler type.Handle continuation cultivation in the greenhouse, back, routine observation is respectively handled the preventive effect to weeds, and the weeds fresh weight behind the 30d after each processing of weighing calculates its toxicity regression curve and co-toxicity coefficient by the abundant method of Sun Yun (nineteen sixty proposition).Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Measurement result is as shown in table 1.
The indoor determination of activity result of table 1
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite illustrates that all greater than 100 the present invention has obvious synergistic effect.
2, field control effectiveness test.
Reagent agent:
4 kinds of binary built Herbicidal combinations among the embodiment 1～4.
The contrast medicament:
10% bensulfuron-methyl wetting powder (commercially available), 30% clopyralid aqua (commercially available).
For studying thing: wheat
Wheat to the 4 leaf phase, grow fine, robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Amaranthus retroflexus, kitchen garden, Maruta cotula, lady's thumb, lamb's-quarters weeds.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the Fan spray head of weed killer herbicide special use for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments (consumption be every mu the consumption of active ingredient).In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop be had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine)
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
As can be seen, the present invention has significant preventive effect to broad leaved weed from table 2 and table 3, and synergy is remarkable, and the lasting period is long.
Table 4 medicament is to the security survey result of crop
Each wheat of handling in the sub-district grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of wheat.
Claims (8)
1. a Synergistic herbicide compositions that contains clopyralid and bensulfuron-methyl is characterized in that this Herbicidal combinations is main active ingredient with clopyralid and bensulfuron-methyl, and wherein, the mass ratio of clopyralid and bensulfuron-methyl is 1～70: 1～60.
2. the Synergistic herbicide compositions that contains clopyralid and bensulfuron-methyl according to claim 1 is characterized in that the mass ratio of clopyralid and bensulfuron-methyl is 1～40: 1～30 in this Herbicidal combinations.
3. according to the Synergistic herbicide compositions described in the claim 1～2, it is characterized in that the two quality percentage composition in Herbicidal combinations of clopyralid and bensulfuron-methyl is 1～85%.
4. according to the Synergistic herbicide compositions described in the claim 3, it is characterized in that the two quality percentage composition in Herbicidal combinations of clopyralid and bensulfuron-methyl is 10～80%.
5. according to the Synergistic herbicide compositions described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with clopyralid and bensulfuron-methyl.
6. according to the Synergistic herbicide compositions described in the claim 4, it is characterized in that described formulation is suspending agent, wetting powder, soluble powder, water dispersible granules or granule.
7. the described Synergistic herbicide compositions of claim 1 is used for the application of the weed killer herbicide of wheat paddock postemergence weed control in preparation.
8. application according to claim 7 is characterized in that described Synergistic herbicide compositions is used for preventing and kill off application in the weed killer herbicide of wheat paddock broad leaved weed in preparation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910035901.3A CN102027968B (en) | 2009-09-28 | 2009-09-28 | Synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof |
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|---|---|---|---|
| CN200910035901.3A CN102027968B (en) | 2009-09-28 | 2009-09-28 | Synergistic herbicidal composition containing clopyralid and bensulfuron-methyl and application thereof |
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| CN102027968A true CN102027968A (en) | 2011-04-27 |
| CN102027968B CN102027968B (en) | 2014-03-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507439A (en) * | 2009-03-30 | 2009-08-19 | 北京颖泰嘉和科技股份有限公司 | Herbicide combination and use thereof |
| CN101530106A (en) * | 2009-04-21 | 2009-09-16 | 北京颖泰嘉和科技股份有限公司 | Herbicide composition containing sulfonylurea, pyridine and acetochlor and use thereof |
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- 2009-09-28 CN CN200910035901.3A patent/CN102027968B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507439A (en) * | 2009-03-30 | 2009-08-19 | 北京颖泰嘉和科技股份有限公司 | Herbicide combination and use thereof |
| CN101530106A (en) * | 2009-04-21 | 2009-09-16 | 北京颖泰嘉和科技股份有限公司 | Herbicide composition containing sulfonylurea, pyridine and acetochlor and use thereof |
Non-Patent Citations (1)
| Title |
|---|
| 魏福香 等: "磺酰脲类除草剂合理使用准则的几点说明", 《农药科学与管理》 * |
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Effective date of registration: 20180521 Address after: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Co-patentee after: Nanjing Redsun Co., Ltd. Patentee after: Nanjing Huazhou Pharmaceutical Co., Ltd. Address before: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Patentee before: Nanjing Huazhou Pharmaceutical Co., Ltd. |