CN109303059A - A kind of Herbicidal combinations - Google Patents
A kind of Herbicidal combinations Download PDFInfo
- Publication number
- CN109303059A CN109303059A CN201710628298.4A CN201710628298A CN109303059A CN 109303059 A CN109303059 A CN 109303059A CN 201710628298 A CN201710628298 A CN 201710628298A CN 109303059 A CN109303059 A CN 109303059A
- Authority
- CN
- China
- Prior art keywords
- butyl
- cyhalofop
- metamifop
- fluorine pyridine
- chlorine fluorine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of Herbicidal combinations containing chlorine fluorine pyridine ester, cyhalofop-butyl and metamifop, active constituent is chlorine fluorine pyridine ester, cyhalofop-butyl and metamifop, wherein, the weight percent 0.1% ~ 20% of chlorine fluorine pyridine ester, the weight percent 1% ~ 40% of cyhalofop-butyl, the weight percent 0.5% ~ 20% of metamifop, the present invention expands herbicidal spectrum, herbicidal effect is significant, extends the lasting period, to succession crop safety.
Description
Technical field
The invention belongs to technical field of pesticide, be related to it is a kind of containing chlorine fluorine pyridine ester, cyhalofop-butyl, metamifop three
First Herbicidal combinations.
Background technique
Rice is main cereal crop, and rice is the staple food grain of one-third of the world's population, almost accounts for its food
2/3rds.According to the report of FAO, the whole world endangers about 250 kinds of weeds of staple food crop, becomes influence
An important factor for crop yield.There are weeding by machine and chemical herbicide weeding for the processing mode of weeds at present, uses chemistry
The weeds between the seedlings that herbicide not only can save large quantities of labours, raise labour productivity, but also common mechanical be made to be difficult to remove
It is removed, keeps mechanization further perfect, improve traditional tillage and cultivation method also.Therefore, chemical herbicide is ground
Study carefully and using being increasingly valued by people.
Chlorine fluorine pyridine ester is the new aryl pyridine carboxylic acid esters herbicide of Tao benefit agriculture exploitation, can pass through the leaf of plant
Piece and root absorption have absorbability, the separate living tissue of weeds can be conducted and be accumulated in through xylem and bast, to play
Activity of weeding.Chlorine fluorine pyridine ester wide spectrum, efficient, quick-acting, dosage is low, cauline leaf process after bud, can be used for more including rice
Gramineae weed, broadleaf weeds and nutgrass flatsedge are prevented and kill off in crop, more areas.It is known so as to solve due to its mechanism of action novelty
Resistance problem, including to acetolactate synthestase (ALS) inhibitor, acetyl-CoA carboxylase (ACCase) inhibitor, to hydroxyl
The generations such as base phenylpyruvic acid dual oxide enzyme (HPPD) inhibitor, propanil, dichloro quinolinic acid, glyphosate, triazine herbicide are anti-
The weeds of property.There is extraordinary activity to paddy field resistance barnyard grass.
Cyhalofop-butyl (cyhalofop-butyl) is a kind of fragrant phenoxy phenoxy propionic acid herbicide, there is height to pacify rice
Quan Xing has uptake and translocation.Medicament is absorbed via blade, the leaf sheath of weeds, is conducted, is accumulated in mitogenetic group of weeds through bast
Area is knitted, acetyl-CoA carboxylase is resisted, stops fatty acid synthesis, the growth division of cell cannot proceed normally, membranous system etc.
Structure containing rouge is destroyed, and Plant death is finally resulted in.Cyhalofop-butyl is higher to grass family semen euphorbiae preventive effect, while and anti-herba digitariae, double
Fringe ditch millet, herba setariae viridis, herba eleusines indicae etc..Cyhalofop-butyl is invalid to sedge weed and broadleaf weeds, especially to the above broad-leaved of 4 leaves
Weeds；Also only has certain inhibiting effect to 2 leaf age angustifolia arrowhead herbs when high dose, degrass spectrum is relatively narrow.Cyhalofop-butyl for many years one
Directly promoted and applied in the form of single dose, after use caused by Weed Resistance rise year by year, dosage increases year by year, use cost is got over
Come higher.
Metamifop (metamifop) is the aryloxyphenoxypropanoates class weeding developed by South Korea's chemical technology research institute
Agent, can be fabulous prevent and kill off most of annual gramineous weeds, unlike most of such herbicides, metamifop pair
Rice safety can effectively prevent and kill off paddy field main weeds, such as barnyard grass, semen euphorbiae, herba digitariae and herba eleusines indicae, be mainly used for transplanting and straight
Broadcast paddy field weeding.Metamifop low toxicity, it is environmentally safe, there is extensive miscibilty, and be expected to be used for other crops and lawn
Weeding is a very promising herbicide.
The use lack of standardization of herbicide, which results in various regions constantly, at present the report of herbicide resistance and phytotoxicity.Pesticide
Compounding it is mixed be it is current mitigate phytotoxicity, improve the most economical effective method of drug effect.We are careless by chlorine fluorine pyridine ester, cyanogen fluorine
The different herbicide mixture of three kinds of ester, metamifop herbicide effect modes can prevent and treat field to reduce the generation of resistance simultaneously
Between a variety of weeds, expand degrass spectrum, reduce influence to soil environment, increase economic efficiency.
Summary of the invention
It is an object of the invention to provide a kind of weeding effect for developing drug resistance problem to farmland weed in the prior art
Fruit is good, quick-acting is high, the lasting period is long while environmentally safe, Herbicidal combinations easy to use, to reduce peasant application at
This, increases economic efficiency.It is specifically related to the Herbicidal combinations of chlorine fluorine pyridine ester, cyhalofop-butyl, metamifop.
The Herbicidal combinations are equipped with auxiliary agent known to those skilled in the art, and dispersible oil-suspending agent, wettable is made
Property pulvis, water dispersible granules, suspoemulsion, suspending agent, missible oil.
In the Herbicidal combinations, the weight percent of chlorine fluorine pyridine ester is 0.1%~20%, the weight hundred of cyhalofop-butyl
Divide than being 1%~40%, the weight percent of metamifop is 0.5%~20%.
The Herbicidal combinations have the advantage that and the utility model has the advantages that 1. effective component is novel, the mechanism of action is unique, confrontation
The integrated control of property weeds is significant；2. expanding degrass spectrum, solves the limitation that single dose uses；3. pacifying to rice
Entirely, to succession crop safety；4. three kinds of herbicide mixtures have synergistic effect, use cost is low, and stability increases.
Specific embodiment
There can be good increasing to verify three kinds of chlorine fluorine pyridine ester, cyhalofop-butyl, metamifop effective component compoundings
Effect effect, applicant test at room temperature potting conditions first, measure chlorine fluorine pyridine ester, cyhalofop-butyl, metamifop
And its different mixture combination herbicidal effects, evaluate its synergy.
Test selects barnyard grass and semen euphorbiae as target weeds.
The preparation of test medicine:
Chlorine fluorine pyridine ester solution: the chlorine fluorine pyridine ester raw medicine of constant weight 91% is accurately weighed, is dissolved, is added with proper amount of methanol
Enter the clear water containing 0.1% Tween 80 emulsifier, be stirred until homogeneous, the solution contained certain active ingredients.
Cyhalofop-butyl solution: the cyhalofop-butyl active compound of constant weight 95% is accurately weighed, is dissolved with proper amount of methanol, addition contains
Have the clear water of 0.1% Tween 80 emulsifier, be stirred until homogeneous, the solution contained certain active ingredients.
Metamifop solution: the metamifop raw medicine of constant weight 95% is accurately weighed, is dissolved, is added with proper amount of methanol
Enter the clear water containing 0.1% Tween 80 emulsifier, be stirred until homogeneous, the solution contained certain active ingredients.
Placebo solution: add the water of the Tween 80 emulsifier of equivalent 0.1% with the methanol of equivalent.
Test method is as follows: examining mixed rear medicament to barnyard grass, the activity of semen euphorbiae using colby method, in high 7cm, directly
The soil of the polypots amount of setting of diameter 10cm will uniformly be sowed in polypots for trying 20, the seed of weeds, lid 0.5-1cm thickness
Thin sand and soil, is placed on room temperature (20 DEG C or so) day optical culture, and the above-mentioned active compound solution prepared is compounded and is diluted to a certain concentration
The medical fluid of gradient carries out cauline leaf spraying treatment, every spraying liquid 1ml, 4 weights of each processing when weed growth is to the 3-5 leaf phase
It is multiple, it is compared using blank solution.Test material is placed in room temperature and cultivates after processing, the growing state of routine observation weeds, and 21
The damage symptoms and growth inhibition situation that target weeds are estimated after it, weigh strain fresh weight, calculate fresh weight inhibition rate (%).
E0=A+B+C
The mode of application of herbicide is evaluated according to colby method, wherein E is the actual measurement preventive effect of mixe herbicide in formula,
A is the Weed-control effect of chlorine fluorine pyridine ester, and B is the Weed-control effect of cyhalofop-butyl, and C is the Weed-control effect of metamifop, E0It is mixed
With the theoretical preventive effect of herbicide, E-E0For the synergy coefficient of mixture preparation, the collaboration to evaluate two kinds of effective components is made
With evaluation criterion: working as E-E0> 10% is synergistic effect, E-E0< -10% is antagonism, E-E0Value between theoretical value ±
10% is addition.
The raw test knot of 1 chlorine fluorine pyridine ester of table, cyhalofop-butyl and metamifop different ratio to barnyard grass activity of weeding
Fruit
As can be seen from Table 1, after three kinds of effective component compoundings, there is good synergistic effect to the preventive effect of barnyard grass.
The raw test of 2 chlorine fluorine pyridine ester of table, cyhalofop-butyl and metamifop different ratio to semen euphorbiae activity of weeding
As a result
As can be seen from Table 2, after three kinds of effective component compoundings, there is good synergistic effect to the preventive effect of semen euphorbiae.
After three kinds of effective component compoundings it can be seen from Tables 1 and 2 experimental data compared with single dose, preventive effect is much higher than three
Kind single dose, the synergy coefficient to barnyard grass and semen euphorbiae has been more than 12%, has good synergistic effect, and expand
Degrass spectrum.
The following specific examples are used to further explain the present invention in detail, but the present invention be only limited to absolutely not it is following these
Embodiment should not be understood as following embodiment and limit the scope of the present invention.Percentage is weight percentage in formula.
Formulation examples are as follows:
Embodiment 1 (oil-suspending agent can be dispersed in 12% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Embodiment 2 (50% chlorine fluorine pyridine ester cyhalofop-butyl metamifop wettable powder)
Embodiment 3 (oil-suspending agent can be dispersed in 21% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Embodiment 4 (6% chlorine fluorine pyridine ester cyhalofop-butyl metamifop water dispersible granules)
Embodiment 5 (oil-suspending agent can be dispersed in 15% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Embodiment 6 (18% chlorine fluorine pyridine ester cyhalofop-butyl metamifop suspoemulsion)
Embodiment 7 (20% chlorine fluorine pyridine ester cyhalofop-butyl metamifop suspending agent)
Embodiment 8 (50% chlorine fluorine pyridine ester cyhalofop-butyl metamifop missible oil)
Embodiment 9 (oil-suspending agent can be dispersed in 18% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Embodiment 10 (12% chlorine fluorine pyridine ester cyhalofop-butyl metamifop water dispersible granules)
Embodiment 11 (oil-suspending agent can be dispersed in 12% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Embodiment 12 (oil-suspending agent can be dispersed in 45% chlorine fluorine pyridine ester cyhalofop-butyl metamifop)
Selection above embodiments carry out the field efficacy experiment of prevention and treatment paddy field weed, are formulated in prevention and treatment paddy field with determining
The effect of weeds, while passing through the synergy compared with chlorine fluorine pyridine ester, cyhalofop-butyl and metamifop, after determining compounding
Effect is embodied as follows:
Testing one: 15% chlorine fluorine pyridine ester cyhalofop-butyl metamifop can be dispersed oil-suspending agent (dosage form English name
Claim: OD) and the prevention and treatment herbicide for paddy field experiment of other preparations.Test medicine is prepared according to examples detailed above and uses 3% chlorine
Fluorine pyridine emulsifiable concentrate (dosage form English name: EC), 1O% cyhalofop-butyl missible oil (dosage form English name: EC), 10% oxazole acyl grass
Amine missible oil (dosage form English name: EC) is compareed, and medicament carries out cauline leaf even spraying after being watered, and 4 repetitions of each processing make
It is compared with clear water.Cell random alignment, plot area 50m2.After medicine 15 days and calculate separately within 30 days each medicament fresh weight it is anti-
Effect.Preventive effect calculates according to the following equation:
The field control effectiveness test result of each chemical control paddy field weed of table 3
It can be clearly seen from the above data that owning after chlorine fluorine pyridine ester, cyhalofop-butyl and metamifop ternary built
Embodiment, more than 89%, is much higher than chlorine fluorine pyridine ester, cyhalofop-butyl, three kinds of metamifop to the preventive effect of barnyard grass and semen euphorbiae
The mixed preventive effect to two kinds of weeds of bucket, compound preparation have obviously synergistic effect two-by-two for single dose and three kinds of single doses, expand
Degrass spectrum extends the lasting period, to reduce the amount of labour of peasant, increases economic efficiency, to rice safety without phytotoxicity.
Claims (2)
1. a kind of Herbicidal combinations, it is characterised in that: the composition active constituent is by chlorine fluorine pyridine ester, cyhalofop-butyl, oxazole
Acyl grass amine composition, the weight percent of the chlorine fluorine pyridine ester are 0.1%~20%, cyhalofop-butyl weight percent be 1%~
40%, the weight percent of metamifop is 0.5%~20%.
2. Herbicidal combinations according to claim 1, it is characterised in that: it is outstanding that dispersible oil is made by effective component and auxiliary material
Floating agent, wettable powder, water dispersible granules, suspoemulsion, suspending agent, missible oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628298.4A CN109303059A (en) | 2017-07-27 | 2017-07-27 | A kind of Herbicidal combinations |
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| CN201710628298.4A CN109303059A (en) | 2017-07-27 | 2017-07-27 | A kind of Herbicidal combinations |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
-
2017
- 2017-07-27 CN CN201710628298.4A patent/CN109303059A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
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Application publication date: 20190205 |