CN107660538A - A kind of Herbicidal combinations - Google Patents
A kind of Herbicidal combinations Download PDFInfo
- Publication number
- CN107660538A CN107660538A CN201610617535.2A CN201610617535A CN107660538A CN 107660538 A CN107660538 A CN 107660538A CN 201610617535 A CN201610617535 A CN 201610617535A CN 107660538 A CN107660538 A CN 107660538A
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- China
- Prior art keywords
- florpyrauxifen
- monooctyl ester
- different monooctyl
- fluroxypyr
- herbicidal
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- 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, it is characterised in that containing florpyrauxifen and the different monooctyl ester two kinds of active components of fluroxypyr, said composition herbicidal spectrum is wide, and lasting period length, herbicidal effect is notable, has obvious synergistic effect.
Description
Technical field
The invention belongs to pesticide field, more particularly to a kind of Herbicidal combinations for being used to prevent and kill off paddy field weed, tool
The Herbicidal combinations that body is related to florpyrauxifen and the different monooctyl ester of fluroxypyr is active component.
Background technology
Rice is main cereal crop, and rice is the staple food grain of the population in the world 1/3rd, almost accounts for its food
2/3rds.China's Rice Production is with a long history, and distributional region is wide, and growing area spans cool temperature zone, medium temperature from north to south
Band, warm temperate zone, subtropical zone and tropical five climate zones, are eating rice production states the biggest in the world, sown area occupies the second in the world, always
Yield ranks first in the world.Rice has a very important status in production, and the stable yields of rice, volume increase are to the grain security in China
With important strategic importance.Planted with the large area of rice, weeds is concerned by people increasingly in rice field.According to joint
Food and agricultural organization of state reports that the whole world endangers about 250 kinds of the weeds of staple food crop, turn into influence crop yield it is important because
Element.The processing mode for weeds has weeding by machine and chemical herbicide weeding at present, can not only be saved using chemical herbicide
Save large quantities of labours, raise labour productivity, and weeds are removed between making the seedling that common mechanical is difficult to remove, and make mechanization
It is further perfect, traditional tillage and cultivation method is also improved.Therefore, chemical herbicide research and application increasingly by
The attention of people.At present, it is necessary to research and develop new, efficient chemical herbicide.
Florpyrauxifen is the novel aromatic yl pyridines first acid herbicides of Tao benefit agriculture exploitation, and exploitation code name is
XDE-848 and XR-848, CAS accession number are 943832-81-3, trade name Rinskor.Florpyrauxifen can be used for wrapping
Include more crops including rice, grassy weed, broad leaved weed and nutgrass flatsedge are prevented and kill off in more areas.Because its mechanism of action is novel, from
And can solve known resistance problem, including to acetolactate synthestase (ALS) inhibitor, acetyl-CoA carboxylase
(ACCase) inhibitor, p-hydroxyphenypyruvate dioxydenase (HPPD) inhibitor, propanil, dichloro quinolinic acid, glyphosate, three
Piperazine class herbicide etc. produces the weeds of resistance.There is extraordinary activity to rice terrace resistance barnyard grass.Structural formula is as follows：
The different monooctyl ester of fluroxypyr (fluroxypyr-mepthyl) is by Tao Nongke companies of the U.S. (Dow
AgroSciences the inner sucting conduction type after seedling cauline leaf process herbicide) developed, is absorbed by weeds, makes sensitivity quickly after dispenser
There is the reaction of classical hormones class herbicide and is transmitted to each position of complete stool in plant, makes plant deformity, distortion, last dead.It is suitable
Broad leaved weed is prevented and kill off for wheat, barley, corn, grape, orchard, pasture, forest land, lawn and other places；As clearvers, volume stem smartweed,
Purslane, black nightshade, field bindweed, knotweed, amaranth etc., it is invalid to grassy weed.Structural formula is as follows：
The content of the invention
It is an object of the invention in view of the shortcomings of the prior art, there is provided a kind of herbicidal effect is good, broad weed-killing spectrum, security
Can the high, Herbicidal combinations that production-increasing function is notable, dispenser is convenient, toxicity is low.
The weight ratio of above-mentioned Herbicidal combinations, florpyrauxifen and the different monooctyl ester of fluroxypyr is 1：50~50：
1。
Using above-mentioned Herbicidal combinations, auxiliary agent known to a person skilled in the art is equipped with, with technology people in the art
The formulation of the present invention can be made in method known to member.Its formulation that can be processed is aqueous emulsion, suspension emulsion, dispersible oil suspension
Agent, water dispersible granules.
Above-mentioned Herbicidal combinations can prevent and treat grassy weed in rice field, broad leaved weed.
The present invention has the advantage that：First, two kinds of herbicides are compounded, its synergy table in certain ratio range
Reveal obvious synergistic effect.2nd, compounded using different two kinds of components of mechanism of action, there is wider array of herbicide controlling spectrum.3rd, two
No interactions resistance between kind composition.
Embodiment
Applicant is potted plant in room temperature to florpyrauxifen and fluroxypyr two kinds of active ingredients of different monooctyl ester first
Under the conditions of carry out Herbicidal Testing Trials, with the herbicidal effect of evaluation two kinds of compositions compounding.Barnyard grass, clearvers are that rice terrace is common miscellaneous
Grass, it is more difficult anti-.According to the herbicidal spectrum of two kinds of active ingredient, raw object of surveying is set to barnyard grass, clearvers, feelings is embodied by us
Condition is as follows：
Test medicine solution：The different monooctyl esters of the accurate florpyrauxifen for weighing constant weight and fluroxypyr are former
Medicine, dissolved with ten times of methanol, add in the clear water containing 0.1% Tween 80 emulsifying agent, be stirred until homogeneous, containing certain
The solution of active ingredient.
Placebo solution：Add the water of 0.1% Tween 80 emulsifying agent with isodose methanol.
Test method is as follows：Using gowing methods examine it is mixed after medicament to barnyard grass, the activity of clearvers, in high 7cm, straight
The soil of the footpath 10cm polypots amount of setting, 20, the seed that will supply to try weeds are uniformly sowed in polypots, 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 a bulk solution prepared is compounded and is diluted to finite concentration
The decoction of gradient, cauline leaf spraying treatment is carried out when weed growth is to the 3-5 leaf phases, per alms bowl spraying liquid 1ml, each handle 4 weights
It is multiple, compared using blank solution.Test material is placed in room temperature and cultivated after processing, the growing state of routine observation weeds, and 21
The damage symptoms and growth inhibition situation of target weeds are estimated after it, weigh strain fresh weight, calculate fresh weight inhibition (%).
Evaluation of effect method, herbicide mode of application is evaluated according to gowing methods, its formula is as follows：
E0(%)=X+Y × (100-X)/100
C=E-E0
E in formula0For the theoretical preventive effect suppressed after two kinds of active ingredient mixtures to weeds, after E is two kinds of active ingredient mixtures
To weeds suppress actual measurement preventive effect, X be florpyrauxifen at this dose to the preventive effect of target weeds, Y is chlorine fluorine pyrrole oxygen
2-ethyl hexyl ethanoate is at this dose the synergy coefficient of mixture preparation to the preventive effect of target weeds, C, is had to evaluate two kinds
Imitate the synergy of composition, be synergistic effect when C is more than 10%, be antagonism during less than 10%, between ± 10% when be
Addition.
The florpyrauxifen of table 1 and the different monooctyl ester different ratio of fluroxypyr are tested the raw of barnyard grass activity of weeding
Test result
After above-mentioned raw survey result can be seen that florpyrauxifen and the different monooctyl ester compounding of fluroxypyr, joint
Function coefficient (C) is all higher than 12%, fine to the preventive effect of barnyard grass, there is significant synergistic effect.
The life of the florpyrauxifen of table 2 and the different monooctyl ester different ratio of fluroxypyr to the activity of weeding of clearvers
Survey result of the test
From table 2 it can be seen that after florpyrauxifen and the different monooctyl ester compounding of fluroxypyr, synergy coefficient
(C) 13% is all higher than, there is good preventive effect to clearvers, synergistic effect is notable.
Above-mentioned 2 raw survey experiments show, compared with the effect of single medicament, by florpyrauxifen and chlorine fluorine pyrrole oxygen second
After the different monooctyl ester compounding of acid, after thering is good synergistic effect, two kinds of compositions to compound to barnyard grass, the preventive effect of clearvers, solves chlorine fluorine
The problem of different monooctyl ester of pyrrole fluoroacetic acid is invalid to grassy weed, there is preferably preventing and treating effect to the weeds of rice terrace frequent species
Fruit.
Below by way of instantiation to be further described the present invention, but the present invention be only limited to absolutely not it is following these
Embodiment.Percentage is weight percentage in formula.Formulation examples are as follows：
The different monooctyl ester aqueous emulsion of the 25.5%florpyrauxifen fluroxypyrs of embodiment 1
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 2 31%florpyrauxifen fluroxypyrs
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 3 11%florpyrauxifen fluroxypyrs
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 4 18%florpyrauxifen fluroxypyrs
The different monooctyl ester water dispersible granules of the 12%florpyrauxifen fluroxypyrs of embodiment 5
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 6 20%florpyrauxifen fluroxypyrs
The different monooctyl ester aqueous emulsion of the 20%florpyrauxifen fluroxypyrs of embodiment 7
The different monooctyl ester suspension emulsion of the 12%florpyrauxifen fluroxypyrs of embodiment 8
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 9 22%florpyrauxifen fluroxypyrs
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 10 31%florpyrauxifen fluroxypyrs
The dispersible oil-suspending agent of the embodiment different monooctyl ester of 11 25.5%florpyrauxifen fluroxypyrs
The different monooctyl ester suspension emulsion of the 24%florpyrauxifen fluroxypyrs of embodiment 12
Above example is selected, prevent and treat the field efficacy experiment of paddy field weed, is harnessed the river for verifying that embodiment is anti-
The effect of rice weeds, while contrasted with florpyrauxifen single doses and the different monooctyl ester single dose of fluroxypyr, it is determined that respectively
The prevention effect of individual embodiment.Specific implementation is as follows：The different monooctyl ester of 20%florpyrauxifen fluroxypyrs is dispersible
Oil-suspending agent (formulation English name：OD) and other preparations preventing and treating rice terrace barnyard grass, the herbicide of clearvers are tested.Test medicine
Prepared according to examples detailed above and use 10%florpyrauxifen dispersible oil-suspending agent (formulation English names：OD) and
Different monooctyl ester missible oil (the formulation English name of 22% fluroxypyr：EC) contrasted, experiment totally ten two processing, each processing
Three repetitions, cell random alignment, plot area 50m2.A cauline leaf spraying is carried out, is observed respectively within 15 days and 30 days after medicine each
The fresh weight preventive effect of medicament.
Respondent is two kinds of barnyard grass in field, clearvers weeds, and rice occurs visual test medicament without poisoning.
The florpyrauxifen of table 3 and the different monooctyl ester different ratio preventing and treating rice weed of the fluroxypyr test of pesticide effectiveness
From above-mentioned data, it is apparent that complex preparation exceedes to barnyard grass, clearvers 15 days, the preventive effect of 30 days
90%, after two kinds of compositions compound, there are good preventive effect, for single dose, synergy to grassy weed and broad leaved weed
Effect is obvious.Visually, used in this experiment in dosage range, to rice safety.
As can be seen here, after two kinds of composition compoundings of florpyrauxifen and the different monooctyl ester of fluroxypyr, to weeds in field
Herbicidal effect far above the herbicidal effect of two kinds of single doses, synergistic effect is notable after compounding, lasting period length, is expanding herbicidal spectrum
Meanwhile the spraying times for reducing peasant are increased economic efficiency so as to reduce the amount of labour of peasant.
Claims (2)
- A kind of 1. Herbicidal combinations, it is characterised in that：Active component is by florpyrauxifen and the different monooctyl ester of fluroxypyr Composition, the weight ratio of the different monooctyl ester of florpyrauxifen and fluroxypyr is 1：50~50：1.
- 2. Herbicidal combinations according to claim 1, it is characterised in that：Aqueous emulsion is made by active component and auxiliary material, hanged Emulsion, dispersible oil-suspending agent, water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617535.2A CN107660538A (en) | 2016-07-29 | 2016-07-29 | A kind of Herbicidal combinations |
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| CN201610617535.2A CN107660538A (en) | 2016-07-29 | 2016-07-29 | A kind of Herbicidal combinations |
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| CN107660538A true CN107660538A (en) | 2018-02-06 |
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| CN201610617535.2A Pending CN107660538A (en) | 2016-07-29 | 2016-07-29 | A kind of Herbicidal combinations |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661522A (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 |
-
2016
- 2016-07-29 CN CN201610617535.2A patent/CN107660538A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661522A (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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