CN102027969A - Herbicidal composition containing clopyralid and tribenuron-methyl and application thereof - Google Patents
Herbicidal composition containing clopyralid and tribenuron-methyl and application thereof Download PDFInfo
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- CN102027969A CN102027969A CN2009100361244A CN200910036124A CN102027969A CN 102027969 A CN102027969 A CN 102027969A CN 2009100361244 A CN2009100361244 A CN 2009100361244A CN 200910036124 A CN200910036124 A CN 200910036124A CN 102027969 A CN102027969 A CN 102027969A
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- methyl
- tribenuron
- clopyralid
- herbicidal combinations
- herbicidal composition
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Abstract
The invention belongs to the field of pesticides, and discloses a herbicidal composition containing clopyralid and tribenuron-methyl and application thereof. The main active ingredients of the herbicidal composition are clopyralid and tribenuron-methyl in a mass ratio of 1-80:1-80, wherein the clopyralid and the tribenuron-methyl account for 1 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be used for preparing herbicides for controlling post-emergence weeds in a wheat field, and particularly has an obvious effect when used for preparing herbicides for controlling various broadleaf weeds in the wheat field. Compared with single-component herbicide, the herbicidal composition delays the resistance of the weeds, has a 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 pesticide field, relate to a kind of Herbicidal combinations, be specifically related to a kind of Herbicidal combinations and application thereof that contains clopyralid and tribenuron-methyl.
Background technology
Wheat is the staple food crop of China, it is reported that annual national wheat all has crop smothering in various degree, and serious crop smothering is if not weeding of field can make wheat yield 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, the sowing and the time of cultivating of wheat there are differences, but basic chemical weed control mode is identical, and what need consideration mainly is factors such as temperature, soil property, wheat breed 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 representation is as follows:
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 wheat paddock, 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 that it kills the grass spectrum, 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.
Tribenuron-methyl (tribenuron-methyl), a kind of sulfonylurea herbicide, chemical name: 2-[4-methoxyl group-6-methyl isophthalic acid, 3,5-triazine-2-base (methyl) carbamyl amino-sulfonyl] benzoic acid or methyl esters, its chemical formula is: C
15H
17N
5O
6S.Tribenuron-methyl is to inhale the conductivity weed killer herbicide in the selectivity, and the root, the leaf that can be plant absorb, and conduction in vivo, suppress bud scale and root growth, and responsive weeds stop growing after absorbing medicament immediately, and 1-3 is dead after week.Tribenuron-methyl is about 60 days longevities of residure in soil, be applicable to wheat paddock, prevent and kill off annual broadleaf weed, better to effects such as descurainia sophia (l.) webb ex prantl, shepherd's purse, the shepherd's purse of cracking rice, corn gromwell, lamb's-quarters, Amaranthus retroflexus, summer cypress, chickweed, knotweed, clearvers etc. also there are certain preventive effect.But along with a large amount of uses of tribenuron-methyl, a lot of weeds have produced resistance to it successively, have had a strong impact on the use of tribenuron-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.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of Herbicidal combinations that contains clopyralid and tribenuron-methyl is provided.This Herbicidal combinations under the prerequisite that has improved drug effect, delays the weeds resistance with respect to single agent, and herbicidal spectrum is wide, and the lasting period is long, and wheat and succession crop are all had safety.
Another object of the present invention provides this Herbicidal combinations and prevents and kill off application in the wheat paddock weeds herbicide in preparation.
A kind of Herbicidal combinations that contains clopyralid and tribenuron-methyl is characterized in that this Herbicidal combinations is main active ingredient with clopyralid and tribenuron-methyl, and wherein the mass ratio of clopyralid and tribenuron-methyl is 1～80: 1～80.The mass ratio of preferred clopyralid and tribenuron-methyl is 1～65: 1～60.
In Herbicidal combinations of the present invention, the two gross mass percentage composition in weed killer herbicide of clopyralid and tribenuron-methyl is 1～85%, and preferred gross mass percentage composition is 10～80%.
In the binary built preparation of clopyralid of the present invention and tribenuron-methyl, except active ingredients such as clopyralid and tribenuron-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 wetting powder, soluble powder, water dispersible granules, missible oil, granule.
Herbicidal combinations of the present invention can be after the wheat paddock seedling is prevented and kill off in preparation be used in the weed killer herbicides of weeds, particularly uses to have remarkable result in the weed killer herbicide of various broad leaved weeds in the wheat paddock is prevented and kill off in preparation.
Herbicidal composition of the present invention has the following advantages:
1, activity of weeding height.Clopyralid and tribenuron-methyl all are inner sucting conduction type post-emergence herbicides.The present invention selects to kill grass spectrum difference, is made into mixture after two kinds of suitable decrements of weed killer herbicide of the clopyralid of pluses and minuses complementation and tribenuron-methyl and uses, and kills the removing activity that weeds can greatly be improved weed killer herbicide by the conduction of plant leaf and root.
2, herbicidal spectrum is wide, and the lasting period is long.Clopyralid and tribenuron-methyl all can be prevented and kill off broad leaved weed, and after both mixed, herbicidal spectrum was wideer.
3, the lasting period is long.Clopyralid and tribenuron-methyl all can be prevented and kill off broad leaved weed, and tribenuron-methyl longevity of residure in soil reaches 60 days, and after both mixed, the lasting period was longer.
4, delay the weeds resistance.Because weeds easily produce resistance to tribenuron-methyl, and contain clopyralid in the Herbicidal combinations of the present invention, make medicament can prevent and kill off the weeds that tribenuron-methyl produced resistance effectively, in addition, the composite use of clopyralid and tribenuron-methyl has reduced the pesticide resistance of weeds, has prolonged the service life of medicament.
5, 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.
Embodiment
Embodiment 1
Tribenuron-methyl 1%, clopyralid 29%, alkylphenol polyoxyethylene 14%, phenethyl phenol polyethenoxy ether 15%, dimethylbenzene to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% missible oil.
Embodiment 2
Tribenuron-methyl 4%, clopyralid 46%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, sodium lignin sulfonate to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% soluble powder.
Embodiment 3
Tribenuron-methyl 5%, clopyralid 60%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 10%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 65% water dispersion granule.
Embodiment 4
Tribenuron-methyl 60%, clopyralid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, wooden sodium iodate 5%, kaolin to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 70% wetting powder.
Embodiment 5
Tribenuron-methyl 9%, clopyralid 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, ammonium sulfate 10%, kaolin to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 10% granule.
Embodiment 6
Tribenuron-methyl 15%, clopyralid 65%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 4%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 80% water dispersion granule.
Embodiment 7
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 in the greenhouse, back and continue to cultivate, each handles preventive effect to weeds routine observation, and each weeds fresh weight after handling of weighing behind the 30d is pressed the method for nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.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 re-compounded binary herbicides among the embodiment 1～4.
The contrast medicament:
75% tribenuron-methyl water dispersible granule (commercially available), 30% clopyralid aqua (commercially available).
For studying thing: wheat
In early days to 4 leaf phases, grow fine after the wheat malt, robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Descurainia sophia (l.) webb ex prantl, shepherd's purse, the shepherd's purse of cracking rice, corn gromwell, lamb's-quarters, Amaranthus retroflexus etc.
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.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), medicament the results are shown in Table 4 to the security survey of crop.
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
Consumption in table 2 and the table 3 all refers to the consumption of active ingredient in each preparation.
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 Herbicidal combinations that contains clopyralid and tribenuron-methyl is characterized in that this Herbicidal combinations is main active ingredient with clopyralid and tribenuron-methyl, and wherein the mass ratio of clopyralid and tribenuron-methyl is 1～80: 1～80.
2. Herbicidal combinations according to claim 1 is characterized in that the mass ratio of clopyralid and tribenuron-methyl is 1～65: 1～60 in this Herbicidal combinations.
3. according to claim 1,2 described Herbicidal combinations, it is characterized in that clopyralid and the tribenuron-methyl gross mass percentage composition in Herbicidal combinations is 1～85%.
4. Herbicidal combinations according to claim 3 is characterized in that clopyralid and the tribenuron-methyl gross mass percentage composition in Herbicidal combinations is 10～80%.
5. Herbicidal combinations according to claim 1 is characterized in that clopyralid and tribenuron-methyl and known auxiliary agent are mixed with any one formulation that allows on the agricultural chemicals.
6. Herbicidal combinations according to claim 5 is characterized in that described formulation is wetting powder, soluble powder, water dispersible granules, missible oil, granule.
7. the described Herbicidal combinations of claim 1 application in the weeds herbicide after the wheat paddock seedling is prevented and kill off in preparation.
8. the described Herbicidal combinations of claim 1 is prevented and kill off the application in the various broadleaf weed herbicides in the wheat paddock in preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100361244A CN102027969A (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing clopyralid and tribenuron-methyl and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100361244A CN102027969A (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing clopyralid and tribenuron-methyl and application thereof |
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|---|---|
| CN102027969A true CN102027969A (en) | 2011-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103907629A (en) * | 2014-03-31 | 2014-07-09 | 青海省畜牧兽医科学院 | Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof |
| CN106538579A (en) * | 2016-09-23 | 2017-03-29 | 四川利尔作物科学有限公司 | Wheat field weeding composition and its application |
| CN114902923A (en) * | 2022-06-27 | 2022-08-16 | 张北县保丰种植专业合作社 | Chemical weeding method for paper tube beet field |
-
2009
- 2009-09-28 CN CN2009100361244A patent/CN102027969A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103907629A (en) * | 2014-03-31 | 2014-07-09 | 青海省畜牧兽医科学院 | Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof |
| CN103907629B (en) * | 2014-03-31 | 2015-12-02 | 青海省畜牧兽医科学院 | A kind of complex weedicide and preparation and application thereof of preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski |
| CN106538579A (en) * | 2016-09-23 | 2017-03-29 | 四川利尔作物科学有限公司 | Wheat field weeding composition and its application |
| CN114902923A (en) * | 2022-06-27 | 2022-08-16 | 张北县保丰种植专业合作社 | Chemical weeding method for paper tube beet field |
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Application publication date: 20110427 |