CN102027911A - Herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof - Google Patents
Herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof Download PDFInfo
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- CN102027911A CN102027911A CN2009100361579A CN200910036157A CN102027911A CN 102027911 A CN102027911 A CN 102027911A CN 2009100361579 A CN2009100361579 A CN 2009100361579A CN 200910036157 A CN200910036157 A CN 200910036157A CN 102027911 A CN102027911 A CN 102027911A
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- dithiopyr
- herbicidal combinations
- dichlorophenoxyacetic acid
- acetic acid
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Abstract
The invention belongs to the field of pesticides and discloses a herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof. The herbicide takes dithiopyr and 2,4-dichlorophenoxy acetic acid as the main active ingredients, wherein the mass ratio of dithiopyr to 2,4-dichlorophenoxy acetic acid is (1-70):(1-80) and dithiopyr and 2,4-dichlorophenoxy acetic acid account for 10-85% of the herbicidal composition by mass. The herbicidal composition can be applied to preparing the herbicides for controlling postemergence weeds on the lawns and has obvious effect on preparing the herbicides for controlling the preemergence weeds on the built and planted lawns, especially the herbicides for controlling tall fescue and Kentucky bluegrass lawns. Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the lawns and the aftercrops on the premise of improving the drug effect.
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 dithiopyr and 2,4 dichlorophenoxyacetic acid.
Background technology
Current, a problem that can not be ignored is heavily to plant light supporting in the lawn construction, and especially the harm of weeds is on the rise, and makes the lawn changed beyond recognition.Turf weed is not only the harm on lawn and is won honour for, strives fertilizer with the lawn, strives the space, and the effect on desalination lawn, reduces the aesthetic values on lawn.The lawn plant that is injured shows as individual very thin, fragile, and cold-resistant, drought-enduring, anti-trample reduction makes the lawn easily degenerate and death, even causes the farmland running to weeds.Therefore, management of weeds is crucial in the planting lawn.
The weeds on harm lawn are nothing more than following three classes: the one, and grassy weed, the 2nd, sedge weed, the 3rd, broad leaved weed.In these a few class weeds, grassy weed and sedge weed are referred to as monocotyledon weed again; Broad leaved weeds is called broadleaf weed again.The key that annual gramineous weed is prevented and kill off is prevented and kill off before rudiment, and the weed killer herbicide kind that the bud rear defence removes is few, and must be careful especially when spraying, in case the grass lawn is produced poisoning.Perennial grassy weed is to nourish and generate, and the difficulty of preventing and kill off is big, in malignant weed growth in summer animated period, select execute or smear in the strong high concentration steriland herbicide of suction conduction, effective as glyphosate etc.Dispenser period: plant and broadcast the lawn at 4 leaves～5 leaf after dates; Sodding the lawn should be in planting 7 days; The Cheng Ping lawn is before the period of seedling establishment of lawn.The bud pre-treatment of broadleaved herb, general combination is prevented and kill off grassy weed and is carried out simultaneously.
Therefore, select suitable weed killer herbicide, and correctly use these weed killer herbicides just to become to prevent and kill off the key link of these weeds, selective herbicide generally all uses after weeds emerge, it is the first-selection of lawn chemical weeding, often be 2 kinds～3 kinds and unite use, and do not use separately, but herbicide mixture also to be noted its activity of weeding and safety.
Dithiopyr (dithiopy), chemical name: S, S '-dimethyl-2-difluoromethyl-4-isobutyl group-6-5-flumethiazine-3, the 5-dithio formate, belong to picolinic acid class weed killer herbicide, be used for rice field and lawn weeding,, can prevent and kill off annual weed such as barnyard grass, Monochoria vaginalis, difformed galingale herb, mexicana, alisma canaliculatum to use before 0.06kg (a.i.)/ha bud and to use with (barnyard grass 1.5 leaf phases of grass) behind 0.12kg (a.i.)/ha bud.But can not prevent and kill off firefly Lin, Herba Cyperi Glomerati, Sagittaria pygmaea and wild arrowhead.The influence that the activity of weeding of this weed killer herbicide is not changed by environmental factor, to rice safety, but the lasting period is prevented and kill off annual gramineous weed and some broad leaved weeds in the lawn before reaching 80d. dithiopyr bud, also can prevent and kill off eleusine indica, chickweed, the root of Beijing euphorbia and other annual pernicious single, double cotyledon weeds.But because the dithiopyr price comparison is expensive, the use cost of unit are is big, and to the anti-heterodyne of part broad leaved weed, therefore, many in use and other herbicide mixtures.
2,4 dichlorophenoxyacetic acid, (ichlorophenoxy acetic acid) has another name called 2,4-drip (2,4-D), be a kind of phenoxy carboxylic acid herbicides.2, the salt of 4-D and ester are the weed killer herbicide and the plant growth regulator of efficient, interior suction, tool high selectivity, plant there is strong physiologically active, during low concentration, often promote growth, the effect that prevents fruit drop, raising percentage of fertile fruit, promotes fruit growth, premature ripening, increase output is arranged, can be used as the storage life that plant growth regulator reduces shedding, increases fruit and prolongation citrus; During high concentration, show the characteristic of growth inhibition and weed killer herbicide, especially performance is more obvious on broad leaved plant.This product mechanism of action belongs to hormone herbicide, when high concentration, has toxic action, impel weeds stem tissue to increase nucleic acid and protein synthesis, recover the splitting ability of mature cell, thereby impel cell division, cause growth failure and cause weeds death, the weeds poisoning symptom is similar to the effect symptom of growth hormone material, is widely used in gramineous crop Tanakas such as lawn, paddy rice, corn, wheat, barley, oat, herbage, Chinese sorghum, sugarcane and prevents and kill off 1 year and perennial broadleaf weed, nutgrass flatsedge and some malignant weed.But, 2,4-D is invalid to grassy weed, and because its easy drift causes poisoning to the flowers and the forest of periphery easily, therefore uses and be subjected to considerable restraint.
Lawn 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 turf weed completely effectively, moreover some weed killer herbicide is because water-soluble big or the lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily peripheral flowers and crop or back stubble flowers of dispenser.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations that contains dithiopyr and 2,4 dichlorophenoxyacetic acid.
Another object of the present invention provides the application in the weed killer herbicides of this Herbicidal combinations weeds after the lawn seedling is prevented and kill off in preparation.
A kind of dithiopyr and 2 of containing, the Herbicidal combinations of 4-dichlorphenoxyacetic acid is characterized in that this Herbicidal combinations is main active ingredient with dithiopyr and 2,4 dichlorophenoxyacetic acid, wherein the mass ratio of dithiopyr and 2,4 dichlorophenoxyacetic acid is 1～70: 1～80.The mass ratio of preferred dithiopyr and 2,4 dichlorophenoxyacetic acid is 1～60: 1～70.
In Herbicidal combinations, the two gross mass percentage composition in Herbicidal combinations of dithiopyr and 2,4 dichlorophenoxyacetic acid is 10～85%, the gross mass percentage composition preferred 20～75% of the two.
Dithiopyr of the present invention and 2, in the binary built preparation of 4-dichlorphenoxyacetic acid, except dithiopyr and 2, outside the active ingredients such as 4-dichlorphenoxyacetic acid, 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 missible oil, suspending agent, do outstanding agent, water dispersion granule, wetting powder, aqueous emulsion etc.
Herbicidal combinations of the present invention can be applicable to prepare the weed killer herbicide of preventing and kill off weeds behind the seedling of lawn, uses in the weed killer herbicide of weeds to have remarkable result before the bud of lawn planting is prevented and kill off in preparation, is particularly useful for preparing the weed killer herbicide of preventing and kill off Festuca Arundinacea and annual bluegrass lawn.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.Herbicidal combinations of the present invention is owing to both activity of weeding complementations, and the weed killer herbicide effective ingredient consumption has reduced, but greatly improves the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Dithiopyr and 2, the 4-dichlorphenoxyacetic acid all is the broad spectrum weeding agent, dithiopyr can be prevented and kill off grassy weed and the part broad leaved weed that is not unearthed, 2, the 4-dichlorphenoxyacetic acid can be prevented and kill off multiple annual or perennial broadleaf weed, and plant such as undershrub, after both mixed, herbicidal spectrum was wideer.Dithiopyr has the preceding herbicidal effect of excellent bud, makes medicament have cauline leaf and handle and the soil treatment double action that the lasting period of medicament is also long.
3, safe.Because the use content of various active ingredients has reduced, and makes medicament under the prerequisite that has improved drug effect, also avoided peripheral flowers or do the deposits yields poisoning and stubble lawn, back or flowers are produced the possibility of residual hazard.
Embodiment
Embodiment 1
Dithiopyr 8%, 2,4-dichlorphenoxyacetic acid 22%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, neopelex 4%, alkylphenol polyoxyethylene 3%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% suspending agent.
Embodiment 2
Dithiopyr 15%, 2,4 dichlorophenoxyacetic acid 35%, calcium dodecyl benzene sulfonate 4%, polyoxyethylene polyoxy third rare block compound 5%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% missible oil.
Embodiment 3
Dithiopyr 15%, 2,4 dichlorophenoxyacetic acid 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Dithiopyr 15%, 2,4 dichlorophenoxyacetic acid 35%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, is mixed with active ingredient gross mass percentage composition and is 50% wetting powder.
Embodiment 5
Dithiopyr 5%, 2,4 dichlorophenoxyacetic acid 70%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% wetting powder.
Embodiment 6
Dithiopyr 60%, 2,4 dichlorophenoxyacetic acid 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% wetting powder.
Embodiment 7
Dithiopyr 1%, 2,4 dichlorophenoxyacetic acid 19%, calcium dodecyl benzene sulfonate 4%, polyoxyethylene polyoxy third rare block compound 5%, dimethylbenzene 20%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 20% aqueous emulsion.
Embodiment 8
Dithiopyr 24%, 2,4 dichlorophenoxyacetic acid 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, polyoxyethylene polyoxy third rare block compound 5%, sodium lignin sulfonate 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% dry suspending agent.
Embodiment 9
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.
4 kinds of re-compounded binary herbicides among reagent agent: the embodiment 1～4.
The contrast medicament:
72%2,4-dichlorobenzene oxygen butyl acetate missible oil (commercially available), 32% dithiopyr EC (farming of LG-DOW benefit).
For studying thing: Festuca Arundinacea and annual bluegrass lawn
Prevent and kill off object: lawn advantage weeds such as barnyard grass grass, lady's-grass, green foxtail, acalypha copperleaf, chickweed.
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 on lawn.
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 grassy weed and 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 on lawn
Growing fine in each lawn of handling in the sub-district, does not see any medicine spot, illustrates that various medicaments are to the equal safety in lawn.
Claims (8)
1. one kind contains dithiopyr and 2, the Herbicidal combinations of 4-dichlorphenoxyacetic acid is characterized in that this Herbicidal combinations is main active ingredient with dithiopyr and 2,4 dichlorophenoxyacetic acid, wherein the mass ratio of dithiopyr and 2,4 dichlorophenoxyacetic acid is 1～70: 1～80.
2. the Herbicidal combinations that contains dithiopyr and 2,4 dichlorophenoxyacetic acid according to claim 1 is characterized in that the mass ratio of dithiopyr and 2,4 dichlorophenoxyacetic acid is 1～60: 1～70 in this Herbicidal combinations.
3. according to claim 1,2 described Herbicidal combinations, it is characterized in that dithiopyr and the 2,4 dichlorophenoxyacetic acid gross mass percentage composition in Herbicidal combinations is 10～85%.
4. Herbicidal combinations according to claim 3 is characterized in that dithiopyr and the 2,4 dichlorophenoxyacetic acid gross mass percentage composition in Herbicidal combinations is 20～75%.
5. Herbicidal combinations according to claim 1 is characterized in that dithiopyr and 2,4 dichlorophenoxyacetic acid 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 missible oil, suspending agent, does and hang agent, water dispersion granule, wetting powder or aqueous emulsion.
7. the application in the weed killer herbicide of the described Herbicidal combinations of claim 1 weeds after the lawn seedling is prevented and kill off in preparation.
8. the application in the weed killer herbicide of the described Herbicidal combinations of claim 1 weeds before the bud of lawn planting is prevented and kill off in preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036157 CN102027911B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036157 CN102027911B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof |
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| Publication Number | Publication Date |
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| CN102027911A true CN102027911A (en) | 2011-04-27 |
| CN102027911B CN102027911B (en) | 2013-06-19 |
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| CN 200910036157 Active CN102027911B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing dithiopyr and 2,4-dichlorophenoxy acetic acid and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114786483A (en) * | 2019-10-24 | 2022-07-22 | Oms投资公司 | Herbicidal compositions and methods of formulation and use thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259013A (en) * | 1997-06-05 | 2000-07-05 | 伊萨罗里斯卡公司 | Herbicidal compositions |
| CN1376032A (en) * | 1999-09-07 | 2002-10-23 | 辛根塔参与股份公司 | Herbicidal composition |
| CN1960634A (en) * | 2004-03-10 | 2007-05-09 | 孟山都技术公司 | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
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2009
- 2009-09-28 CN CN 200910036157 patent/CN102027911B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259013A (en) * | 1997-06-05 | 2000-07-05 | 伊萨罗里斯卡公司 | Herbicidal compositions |
| CN1376032A (en) * | 1999-09-07 | 2002-10-23 | 辛根塔参与股份公司 | Herbicidal composition |
| CN1960634A (en) * | 2004-03-10 | 2007-05-09 | 孟山都技术公司 | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114786483A (en) * | 2019-10-24 | 2022-07-22 | Oms投资公司 | Herbicidal compositions and methods of formulation and use thereof |
| CN114786483B (en) * | 2019-10-24 | 2024-09-06 | Oms投资公司 | Herbicide composition and preparation and use method thereof |
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| CN102027911B (en) | 2013-06-19 |
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