CN102630685A - Composite weedicide - Google Patents
Composite weedicide Download PDFInfo
- Publication number
- CN102630685A CN102630685A CN2012101234534A CN201210123453A CN102630685A CN 102630685 A CN102630685 A CN 102630685A CN 2012101234534 A CN2012101234534 A CN 2012101234534A CN 201210123453 A CN201210123453 A CN 201210123453A CN 102630685 A CN102630685 A CN 102630685A
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- China
- Prior art keywords
- fluroxypyr
- weeds
- wheat
- florasulam
- composite weedicide
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Abstract
The invention discloses a composite weedicide belonging to the technical field of weedicides. The composite weedicide comprises active components of foramsulfuron and fluroxypyr-meptyl with the mass ratio being 1:1-1:50. According to the composite weedicide, the compatibility of the foramsulfuron and the fluroxypyr-meptyl has the remarkable characteristics that desk research proves that the foramsulfuron and the fluroxypyr-meptyl are remarkable in synergia; the composite weedicide has remarkable control effects on resistance weeds such as flixweed, shepherd's purse, leaf mustard, silene conoidea and starwort in the wheat paddock, and can greatly reduce entironment risk caused by large consumption of sulfonylurea weedicides; difficultly-controlled weeds such as cleavers, lithospermum arvense and euphorbia helioscopia in the wheat paddock can be effectively controlled and removed; the composite weedicide has a remarkable control function on perennial weeds such as hedge glorybind flower and cephalanoplos segetum in the wheat padlock; the resistance of the weeds is delayed; and the composite weedicide is safe for the wheat, has no flying danger and is applied once in one season, and a weed killing effect is is not influenced by temperature.
Description
Technical field
The invention belongs to herbicide technology field, particularly a kind of compound herbicide.
Background technology
China is one of country that the wheat planting area is maximum and consumption is the highest in the world, and cultivated area is about 3,000 ten thousand hectares throughout the year, and about 100,000,000 tons of annual production accounts for 22% of total output of grain; About 5,300,000 hectares of the long-term cultivated area of Henan Province's wheat, the wheat gross yield accounts for 1/4 of national wheat yield.Along with China's rapid economy development, agricultural modernization level significantly improves, and wheat paddock chemical weed control area accounts for more than 70% of wheat planting area, and wheat increase yield reaches 10-15%.China's wheat paddock weed killer herbicide kind is taken as the leading factor with tribenuron-methyl, up to the present, more than 100 of the enterprise of domestic registration tribenuron-methyl, its occupation rate of market has surpassed the summation of other weeding for wheat agent, becomes the leading products that wheat paddock is prevented and kill off broad leaved weed.Tribenuron-methyls etc. are a large amount of at home to be used more than 10 years, and continuous use causes main Wheat Production zone resistance outburst such as Hebei, Shandong, Henan, caused the resistance of susceptible weeds populations such as descurainia sophia (l.) webb ex prantl, shepherd's purse, leaf mustard, conical silene herb, chickweed to reach 5-10 doubly.The weed community succession is rapid, and a large amount of malignant weeds generation harm are serious, and the clearvers quantity in area such as the Yellow River and Huai He River basin rises, and becomes the important weeds of this zone wheatland, endangers to have and further increases the weight of trend; The generating capacity of wheat district such as Anhui, Shandong wartwort obviously rises, weeds such as field bindweed, field thistle to occur in all parts of the country all in rising trend.Wheatland has also occurred resisting 2 simultaneously, the weeds of 4-D, MCPA,MCP,methoxone, and the field dosage increases, and influences the safety of succession crop, and Ecological Environment Risk increases, and presses for a kind of weed killer herbicide of preventing and kill off the wheatland resistant weed in the agricultural production and substitutes kind.
Summary of the invention
The object of the present invention is to provide the significant compound herbicide of a kind of preventive effect.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is following:
A kind of compound herbicide: its active component is florasulam and the different monooctyl ester of fluroxypyr, and florasulam: the mass ratio of the different monooctyl ester of fluroxypyr is 1:1 ~ 1:50.
Preferably, florasulam: the mass ratio of the different monooctyl ester of fluroxypyr is preferably 1:30 ~ 1:50, more preferably 1:40.
Further, active component is equipped with that acceptable carrier and auxiliary agent are processed into any one pesticidal preparations by conventional method on the agricultural chemicals.Said carrier and auxiliary agent are those skilled in the art's routine and select.
Preferably, the mass content of active component in above-mentioned pesticidal preparations is 5 ~ 80%, is preferably 20 ~ 80%.
Preferably, said pesticidal preparations is wetting powder, oil-suspending agent or water dispersible granules.
Florasulam, florasulam, molecular formula: C
12H
8F
3N
5O
3S, chemical name: 2', 6'-two fluoro-5-ethyoxyl-8-fluorine [1; 2,4] triazole [1,5-c] pyrimidine-2-sulfonanilide; The ALS inhibitor, be a kind of be sulfonamides super-high-efficient weed killer herbicide, be used for wheat paddock and prevent and kill off broad leaved weed; Can prevent and kill off the most of broad leaved weeds of wheatland, comprise difficult anti-weeds such as clearvers, corn gromwell, and the most difficult wartwort of preventing and kill off in the wheatland is had extraordinary inhibitory action.The inner sucting conduction type weed killer herbicide can conduct to the weeds complete stool, thereby kills grass thoroughly, can not recur.Efficacy stability also can effectively be prevented and kill off annual gramineous weed and broad leaved weed in peanut, tobacco, clover and other forage crop, consumption 1.0～1.35g/ha at low temperatures.
The different monooctyl ester of fluroxypyr, fluroxypyr-mepthyl, molecular formula: C
15H
21Cl
2FN
2O
3, chemical name: 4-amino-3, the different monooctyl ester of 5-two chloro-6-fluoro-2-pyridine fluoroacetic acid; The inner sucting conduction type herbicide after seedling changes into fluroxypyr and plays herbicide effect in plant corpus, make sensitive plant the reaction of typical hormone herbicide occur; Plant deformity, distortion, finally withered.
The characteristics that the different monooctyl ester compatibility of florasulam of the present invention and fluroxypyr is outstanding:
1, desk research shows, the different monooctyl ester synergy of florasulam and fluroxypyr is remarkable;
2, remarkable to preventive effects such as wheat paddock resistant weed descurainia sophia (l.) webb ex prantl, shepherd's purse, leaf mustard, conical silene herb, chickweeds, can reduce the Ecological Environment Risk that the big consumption of sulphonyl urine type weed killer herbicide uses greatly;
3, can effectively prevent and kill off difficult anti-weeds such as clearvers to wheatland, corn gromwell, wartwort;
4, perennial weeds such as wheat paddock field bindweed, field thistle there is tangible preventive and therapeutic effect;
5, delay the generation of weeds resistance;
6, to wheat safety, there is not elegant harm, herbicidal effect is temperature influence not, and season dispenser is once.This product is the desirable alternative kind of present wheat paddock weed killer herbicide, and market prospects are very wide.
Embodiment
Embodiment 1
Florasulam 0.5kg, the different monooctyl ester 20kg of fluroxypyr, No. 500 (anion surfactant) 10kg of farming breast; Tween-80 (non-ionic surface active agent) 5kg, aluminium-magnesium silicate (thickener) 2kg, organobentonite (thickener) 0.5kg, ethylene glycol (antifreezing agent) 5kg, methyl esters oil (carrier) complements to 100kg.Processing method: florasulam, the different monooctyl ester of fluroxypyr are added in the methyl esters oil and disperse, add other auxiliary agent stirring and evenly mixing simultaneously,, get 20.5% oil-suspending agent product through three grades of sand mill waterproof pulverization.
Embodiment 2
Florasulam 2kg, the different monooctyl ester 78kg of fluroxypyr, neopelex (dispersant) 4kg, lignosulfonates (dispersant) 5kg, denaturated sodium polyacrylate 80 (binding agent) 1kg, bentonite (carrier) complements to 100kg.Processing method: florasulam, the different monooctyl ester of fluroxypyr, dispersant, carrier are mixed behind comminution by gas stream, add binding agent, get 80% water-dispersible granules product after the oven dry through extruder granulation.
Embodiment 3
Florasulam 1kg, the different monooctyl ester 39kg of fluroxypyr, neopelex (dispersant) 4kg, lignosulfonates (dispersant) 3kg, white carbon (thickener) 10kg, kaolin (carrier) complement to 100kg.Processing method: florasulam, the different monooctyl ester of fluroxypyr, auxiliary agent (dispersant and thickener), carrier are mixed, behind comminution by gas stream, get 40kg wetting powder product.
One, herbicidal effect
1 test objective
Estimate florasulam and the different monooctyl ester of fluroxypyr to the removing activity of common annual broadleaf weed, explore the two optimum activity ratio and synergy situation, registering for land for growing field crops application and product provides theoretical foundation and technical data.
2 experimental conditions
2.1 supply the examination target
:Sarson
Brassica campestrisL., Amaranthus retroflexus
Amaranthus retroflexus, all pick up from farmland, suburbs, Zhengzhou, dry back drying, the preservation of shady and cool ventilation place, sarson germination rate 94.2% during test; Amaranthus retroflexus germination rate 91.6%.
2.2 instrument and equipment
The 3WPSH-500D type is given birth to and is surveyed spray tower, controlled greenhouse by solar heat, FA1604 electronic balance (sensibility reciprocal 0.1mg), tool hole plastic basin (diameter 30cm), beaker, pipette.
3, experimental scheme
3.1 test soil: take from farmland, the north suburb, Zhengzhou, two close soil property, organic matter 1.2%, pH7.1, sieving for standby behind the natural air drying.
3.2 examination material
With pack into plastic basin to 4/5 place of diameter 30cm of the fine earth that sieves, adopt basin at the bottom of the infiltrating irrigation mode make soil moistening fully, with selected weed seed uniform broadcasting in soil surface; Cover the fine earth of about 1cm then; Carry out moisturizing to wetting with infiltrating irrigation mode at the bottom of the basin then, place then the greenhouse preserve moisture cultivations (days warm 25～29 ℃, night, temperature was 15～19 ℃; Sunshine 14h, relative moisture 65%～75%).Decide strain at the weeds laggard seedling in the ranks of emerging, each 10 strain of sarson and Amaranthus retroflexus, the processing of when weeds grow to the about 5～7cm of 3～5 true leaves, plant height, spraying.
3.3 test medicine
The former powder of 97.5% florasulam, The Dow Agrosciences, LLC. produces;
The former medicine of the different monooctyl ester of 96.7% fluroxypyr, Anhui Fengle Agricultural Co., Ltd produces.
3.4 other reagent
Acetone: analyze pure; Tianjin section close europeanized reagent center produces;
Tween 80: chemical pure; Laiyang, Shandong chemical industry pilot plant is produced.
3.5 test is handled
Test medicine is mixed with the mother liquor of two single agent with acetone solution, and according to the result of preliminary experiment, each test medicine dosage is designed to:
0.5,1,1.5,2,2.5,3ai.g/ha florasulam:;
25,50,75,100,125,150ai.g/ha the different monooctyl ester of fluroxypyr:;
The different monooctyl ester five assembly ratio of florasulam and fluroxypyr: 1:30,1:35,1:40,1:45,1:50, with the mother liquor preparation, dosage is 10,15,20,25,30,35ai.g/ha.
Test is with 600L/hm
2Spouting liquid calculates the spouting liquid of every basin, according to the dosage of experimental scheme, and the Tween 80 aqueous solution dilution test medicament with 0.1%.
4 test methods
Test adopts NY/T1155.4-2006 cauline leaf spray-on process to carry out.
The adjustment sprinkler height, making spraying swath is about 30cm, chemicals treatment atomisation pressure 2.75kpa, spouting liquid are 600L/hm
2, carry out cauline leaf spraying from low concentration to the high concentration order by experimental scheme and handle, make blank with 0.1% the Tween 80 aqueous solution that does not contain medicament, each is handled and establishes four repetitions.Behind the weeds page soup natural air drying of pending back, move into the conventional cultivation in greenhouse, with the mode moisturizing of bottom infiltrating irrigation, condition of culture is the same.
5 data surveys and statistical analysis
Handle the growth conditions that the examination grass was observed and put down in writing in the back, handle back 21d, employing absolute value investigation method investigation weeds acrial part fresh weight calculates the fresh weight preventive effect that each is handled.The logarithm value of agricultural chemicals dosage and the probability value of preventive effect are carried out regression analysis, calculate the ED that each is handled
50, ED
90, 95% confidence limit, estimate each and handle biologically active weeds, the abundant method of utilization Sun Yun calculates the co-toxicity coefficient of different medicament proportionings, estimates the synergy situation of different proportionings, confirms the different monooctyl ester optimum activity of florasulam and fluroxypyr proportioning.
Computing formula:
6 results and analysis
This test adopts potted plant cauline leaf spray-on process to measure florasulam and the different monooctyl ester of fluroxypyr to trying careless removing activity.The toxicity test test data is seen table 1, and virulence regression equation and synergy situation are seen table 2.
Table 1 toxicity test test data
Table 2 virulence regression equation and synergy information slip
The speed of action of finding the different monooctyl ester of fluroxypyr in the process of the test shows withered dead faster than florasulam.
Can find out that by result of the test florasulam has very high biologically active to trying grass, its virulence regression equation Y=4.6528+2.9100X, correlation coefficient is 0.9624, to trying the ED of careless fresh weight
50Be 1.3162ai.g/ha, ED
90Be 3.6285ai.g/ha, the different monooctyl ester virulence regression equation of fluroxypyr Y=0.6261+2.4657X is to trying the ED of careless fresh weight
50Be 59.4152ai.g/ha, ED
90Be 196.6388ai.g/ha, correlation coefficient is 0.9659.
Florasulam and the different proportionings of the different monooctyl ester of fluroxypyr are to trying the ED of careless fresh weight
50Value is respectively 18.5427ai.g/ha, 19.9759ai.g/ha, 19.6144ai.g/ha, 21.7742ai.g/ha and 23.7626ai.g/ha, ED
90Value is respectively 39.4539ai.g/ha, 37.5171ai.g/ha, 35.8069ai.g/ha, 45.5935ai.g/ha and 44.5602ai.g/ha, and correlation coefficient is respectively 0.9971,0.9963,0.9904,0.9927 and 0.9801.
Florasulam is different with the different monooctyl ester mechanism of action of fluroxypyr; But it is similar to kill the grass spectrum; Employing co-toxicity coefficient method is carried out the synergy evaluation to the medicament of different proportionings, is found out that by table 2 florasulam is respectively 132.2,133.6,145.9,139.2 and 134.0 with the CTC value of the different proportionings of the different monooctyl ester of fluroxypyr; Test set five assembly than all showing certain synergistic effect, with florasulam: the ratio compatibility co-toxicity coefficient of the different monooctyl ester=1:40 of fluroxypyr is maximum, and synergy is the most remarkable.Florasulam in the suggestion preparation: the different monooctyl ester=1:40 of fluroxypyr, carry out field plot trial, verify its field control effect.
Two, field experiment result
1, base, Yuanyang, dispenser on February 2 in 2010, mu spouting liquid 40kg (preparation is converted water as hydrojet, down together), the cauline leaf spraying, 21 days investigation results are seen table 3 after the dispenser.
The test of table 3 embodiment 1 oil-suspending agent control wheat paddock weeds
2, base, Xihua County, dispenser on March 10 in 2010, mu spouting liquid 30kg, the cauline leaf spraying, 21 days investigation results are seen table 4 after the dispenser.
The test of table 4 embodiment 2 dispersible granules control wheat paddock weeds
Claims (5)
1. compound herbicide, it is characterized in that: its active component is florasulam and the different monooctyl ester of fluroxypyr, and florasulam: the mass ratio of the different monooctyl ester of fluroxypyr is 1:1 ~ 1:50.
2. compound herbicide as claimed in claim 1 is characterized in that: florasulam: the mass ratio of the different monooctyl ester of fluroxypyr is 1:40.
3. according to claim 1 or claim 2 compound herbicide is characterized in that: active component is equipped with that acceptable carrier and auxiliary agent are processed into any one pesticidal preparations on the agricultural chemicals.
4. compound herbicide as claimed in claim 3 is characterized in that: the mass content of active component in above-mentioned pesticidal preparations is 5 ~ 80%.
5. compound herbicide as claimed in claim 4 is characterized in that: said pesticidal preparations is wetting powder, oil-suspending agent or water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101234534A CN102630685A (en) | 2012-04-25 | 2012-04-25 | Composite weedicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101234534A CN102630685A (en) | 2012-04-25 | 2012-04-25 | Composite weedicide |
Publications (1)
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|---|---|
| CN102630685A true CN102630685A (en) | 2012-08-15 |
Family
ID=46615403
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|---|---|---|---|
| CN2012101234534A Pending CN102630685A (en) | 2012-04-25 | 2012-04-25 | Composite weedicide |
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| Country | Link |
|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053554A (en) * | 2013-02-04 | 2013-04-24 | 陕西农心作物科技有限公司 | Wheat paddock weeding composition |
| CN104137841A (en) * | 2014-08-04 | 2014-11-12 | 安徽美兰农业发展股份有限公司 | Fluroxypyr-mepthyl, 2,4-D isooctyl ester and florasulam compound suspending agent |
| JP2016509071A (en) * | 2013-03-06 | 2016-03-24 | ダウ アグロサイエンシィズ エルエルシー | How to control weeds on the lawn |
| CN106472529A (en) * | 2016-08-31 | 2017-03-08 | 四川利尔作物科学有限公司 | Herbicidal combinations and its application |
| CN106472527A (en) * | 2015-08-27 | 2017-03-08 | 湖北润增绿色植保有限公司 | A kind of herbicidal composition and its application |
| CN114208833A (en) * | 2021-12-30 | 2022-03-22 | 青岛润农化工有限公司 | Pesticide composition containing fluroxypyr-meptyl and diclosulam, and preparation method and application thereof |
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| EP1315420B1 (en) * | 2000-08-31 | 2006-05-24 | Basf Aktiengesellschaft | Herbicide mixtures |
| WO2011139647A2 (en) * | 2010-04-26 | 2011-11-10 | Dow Agrosciences Llc | Stabilized agricultural oil dispersions |
| CN102318618A (en) * | 2011-07-07 | 2012-01-18 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and fluroxypyr |
| CN102405921A (en) * | 2011-12-27 | 2012-04-11 | 联保作物科技有限公司 | Herbicide composition |
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2012
- 2012-04-25 CN CN2012101234534A patent/CN102630685A/en active Pending
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| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053554A (en) * | 2013-02-04 | 2013-04-24 | 陕西农心作物科技有限公司 | Wheat paddock weeding composition |
| JP2016509071A (en) * | 2013-03-06 | 2016-03-24 | ダウ アグロサイエンシィズ エルエルシー | How to control weeds on the lawn |
| EP2964031A4 (en) * | 2013-03-06 | 2016-08-03 | Dow Agrosciences Llc | Method for controlling weeds in turf |
| CN104137841A (en) * | 2014-08-04 | 2014-11-12 | 安徽美兰农业发展股份有限公司 | Fluroxypyr-mepthyl, 2,4-D isooctyl ester and florasulam compound suspending agent |
| CN106472527A (en) * | 2015-08-27 | 2017-03-08 | 湖北润增绿色植保有限公司 | A kind of herbicidal composition and its application |
| CN106472529A (en) * | 2016-08-31 | 2017-03-08 | 四川利尔作物科学有限公司 | Herbicidal combinations and its application |
| CN114208833A (en) * | 2021-12-30 | 2022-03-22 | 青岛润农化工有限公司 | Pesticide composition containing fluroxypyr-meptyl and diclosulam, and preparation method and application thereof |
| CN114208833B (en) * | 2021-12-30 | 2024-03-29 | 青岛润农化工有限公司 | Pesticide composition containing fluroxypyr and diclosulam as well as preparation method and application thereof |
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Application publication date: 20120815 |