CN102027915B - Herbicidal composition containing dithiopyr and picloram and application thereof - Google Patents
Herbicidal composition containing dithiopyr and picloram and application thereof Download PDFInfo
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- CN102027915B CN102027915B CN 200910036161 CN200910036161A CN102027915B CN 102027915 B CN102027915 B CN 102027915B CN 200910036161 CN200910036161 CN 200910036161 CN 200910036161 A CN200910036161 A CN 200910036161A CN 102027915 B CN102027915 B CN 102027915B
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Abstract
The invention belongs to the field of pesticides and discloses a herbicidal composition containing dithiopyr and picloram and application thereof. The herbicide takes dithiopyr and picloram as the main active ingredients, wherein the mass ratio of dithiopyr to picloram is (1-65):(1-80) and dithiopyr and picloram 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 herbicidalspectrum 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 sulfur contained quarry grass calmly and Herbicidal combinations and the application thereof of picloram.
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, cold-resistant, drought-enduring, anti-trample reduction, so that easily degeneration and dead of lawn, even cause 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 again monocotyledon weed; Broad leaved weeds is called again broadleaf weed.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 as main, and the difficulty of preventing and kill off is large, in malignant weed growth in summer animated period, selects and executes or smear the strong high concentration steriland herbicide of interior suction conduction, and is good such as the glyphosate texts.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 at green returning of lawn before the phase.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 belongs to picolinic acid class weed killer herbicide, is a kind of picolinic acid class weed killer herbicide.Be used for rice field and Kill weeds, to use before 0.06kg (a.i.)/ha bud and to use with (1.5 leaf phases of barnyard grass) behind 0.12kg (a.i.)/ha bud, can prevent and kill off the annual weed such as barnyard grass, Monochoria vaginalis, difformed galingale herb, mexicana, alisma canaliculatum.But can not prevent and kill off firefly Lin, Herba Cyperi Glomerati, Sagittaria pygmaea and wild arrowhead.The impact that the activity of weeding of this weed killer herbicide is not changed by environmental factor, to rice safety, but the lasting period reaches annual gramineous weed and some broad leaved weeds in the front Weeds in Turf of 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 large, and to the anti-heterodyne of part broad leaved weed, therefore, and many and other herbicide mixtures in use.
Picloram (Picloram), have another name called picloram, a kind of pyridines weed killer herbicide, chemical name: 4-amino-3,5,6-trichloropyridine carboxylic acid belongs to selectivity inner sucting conduction type herbicide after seedling, and it has the activity of plant hormone, simultaneously, respiration to the mitochondria system, metabolism of nucleic acid is inhibited, and picloram can by the blade of plant and root absorption and in vivo fast conduction, accumulate in growing point, weeds are occurred withered, disleave, downright bad, final whole strain is dead, and picloram can effectively be prevented and kill off dayflower, piemarker, knotweed, acalypha copperleaf, lamb's-quarters, the multiple broad leaved weed such as Amaranthus retroflexus is to lawn safety.But picloram is invalid to grassy weed, and herbicide spectrum is limited, during use many with prevent and kill off the pharmacy mix of grassy weed.
Lawn herbicide is limit by crop safety at present, the herbicide spectrum is also limited, be used alone the weed killer herbicide single dose and can not control completely effectively the generation of turf weed, moreover some weed killer herbicide is because water-soluble large or the lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all easily causes peripheral flowers and crop or rear stubble flowers of dispenser.
Summary of the invention
The Herbicidal combinations that the purpose of this invention is to provide the fixed and picloram of a kind of sulfur contained quarry grass.
Another object of the present invention provides the application of this Herbicidal combinations in the weed killer herbicide of preparation Weeds in Turf weeds.
The Herbicidal combinations of the fixed and picloram of a kind of sulfur contained quarry grass, it is characterized in that this Herbicidal combinations is take dithiopyr and picloram as main active ingredient, wherein the mass ratio of dithiopyr and picloram is 1～65: 1～80, the mass ratio of dithiopyr and picloram preferred 1～45: 1～70.
In Herbicidal combinations, dithiopyr and the picloram gross mass percentage composition in Herbicidal combinations is 10～85%, and preferred gross mass percentage composition is 20～75%.
In dithiopyr of the present invention and the Borolin composition, except dithiopyr and picloram active ingredient, 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 herbicides of weeds behind the Weeds in Turf seedling, 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 is high.Herbicidal combinations of the present invention is because both activity of weeding are complementary, and the Herbicidal combinations effective ingredient consumption has reduced, but greatly improves the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide, and the lasting period is long.Dithiopyr and picloram all are the broad spectrum weeding agent, dithiopyr can be prevented and kill off not grassy weed and the part broad leaved weed that is unearthed, and picloram can be prevented and kill off multiple annual or perennial broadleaf weed, and the plant such as undershrub, after both mixed, herbicidal spectrum was wider.Dithiopyr has the front herbicidal effect of excellent bud, processes and the soil treatment double action so that medicament has cauline leaf, and the lasting period of medicament is also long.
3, safe.Because the use content of various active ingredients makes medicament under the prerequisite that has improved drug effect, also avoided peripheral flowers or do the deposits yields poisoning and rear stubble lawn or flowers are produced the possibility of residual hazard.
Embodiment
Embodiment 1
Picloram 15%, dithiopyr 15%, sodium lignin sulfonate 7%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 4%, thickener 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
Picloram 10%, dithiopyr 15%, calcium dodecyl benzene sulfonate 3%, alkylphenol polyoxyethylene 4%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% missible oil.
Embodiment 3
Picloram 50%, dithiopyr 25%, 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
Picloram 20%, dithiopyr 30%, 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 50% wetting powder.
Embodiment 5
Picloram 70%, dithiopyr 5%, 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
Picloram 15%, dithiopyr 60%, 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
Picloram 19%, dithiopyr 1%, 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
Picloram 1%, dithiopyr 24%, 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), toxicity determination test
Utilize the preparation among the embodiment 1～4, measure it to the co-toxicity coefficient of 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 acalypha copperleaf 3～6 leaves during the phase, do the composition spray processing of spraying in crawler type.Continue in the greenhouse after processing to cultivate, each processes preventive effect to weeds routine observation, and each weeds fresh weight after processing of weighing behind the 30d is pressed the method for the 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.
Table 1 toxicity measurement result
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:
24% picloram aqua (commercially available), 32% dithiopyr EC (farming of LG-DOW benefit).
For studying thing:
Festuca Arundinacea and annual bluegrass lawn
Prevent and kill off object:
The lawn advantage weeds such as barnyard 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 being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid is evenly sprayed application in the experimental plot phenomenon of accomplishing there is not drain spray, spraying more.
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, to investigate medicament whether crop be had poisoning.
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)
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 20 | 85 | 91 | 94 |
| Embodiment 2 | 20 | 89 | 94 | 91 |
| Embodiment 3 | 20 | 91 | 92 | 90 |
| Embodiment 4 | 20 | 90 | 92 | 92 |
| 24% picloram aqua | 24 | - | 87 | 50 |
| 32% dithiopyr EC | 30 | 89 | 70 | 88 |
Table 3 field control effectiveness test result (40d behind the medicine)
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 20 | 85 | 81 | 84 |
| Embodiment 2 | 20 | 81 | 84 | 84 |
| Embodiment 3 | 20 | 85 | 82 | 83 |
| Embodiment 4 | 20 | 80 | 82 | 81 |
| 24% picloram aqua | 24 | - | 77 | 30 |
| 32% dithiopyr EC | 30 | 79 | 60 | 68 |
Consumption in table 2 and the table 3 all refers to the consumption of active ingredient in each preparation.
Can find out from table 2 and table 3, the present invention has significant preventive effect to grassy weed and broad leaved weed, 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 processing in the residential quarter, has no any medicine spot, illustrates that various medicaments are to the equal safety in lawn.
Claims (5)
1. the Herbicidal combinations of the fixed and picloram of sulfur contained quarry grass, it is characterized in that this Herbicidal combinations is take dithiopyr and picloram as active ingredient, wherein the mass ratio of picloram and dithiopyr is 1:1, and the two gross mass percentage composition in Herbicidal combinations is 30%; Perhaps the mass ratio of picloram and dithiopyr is 2:3, and the two gross mass percentage composition in Herbicidal combinations is 25%; Perhaps the mass ratio of picloram and dithiopyr is 2:1, and the two gross mass percentage composition in Herbicidal combinations is 75%; Perhaps the mass ratio of picloram and dithiopyr is 2:3, and the two gross mass percentage composition in Herbicidal combinations is 50%.
2. Herbicidal combinations according to claim 1 is characterized in that the auxiliary agent that allows on dithiopyr and picloram and the agricultural chemicals is mixed with any one formulation.
3. Herbicidal combinations according to claim 2 is characterized in that described formulation is missible oil, suspending agent, water dispersion granule, wetting powder or aqueous emulsion.
4. the application in the weed killer herbicide of Herbicidal combinations claimed in claim 1 weeds behind preparation Weeds in Turf seedling.
5. the application in the weed killer herbicide of Herbicidal combinations claimed in 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 200910036161 CN102027915B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing dithiopyr and picloram and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036161 CN102027915B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing dithiopyr and picloram and application thereof |
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| Publication Number | Publication Date |
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| CN102027915A CN102027915A (en) | 2011-04-27 |
| CN102027915B true CN102027915B (en) | 2013-09-18 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6713433B2 (en) * | 1999-08-11 | 2004-03-30 | Monsanto Technology, Llc | Coformulation of an oil-soluble herbicide and a water-soluble herbicide |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
| CN101530104A (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 cyhalofop-butyl and use thereof |
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2009
- 2009-09-28 CN CN 200910036161 patent/CN102027915B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6713433B2 (en) * | 1999-08-11 | 2004-03-30 | Monsanto Technology, Llc | Coformulation of an oil-soluble herbicide and a water-soluble herbicide |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
| CN101530104A (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 cyhalofop-butyl and use thereof |
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| CN102027915A (en) | 2011-04-27 |
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