CN107787997A - A kind of complex weedicide - Google Patents
A kind of complex weedicide Download PDFInfo
- Publication number
- CN107787997A CN107787997A CN201610771475.XA CN201610771475A CN107787997A CN 107787997 A CN107787997 A CN 107787997A CN 201610771475 A CN201610771475 A CN 201610771475A CN 107787997 A CN107787997 A CN 107787997A
- Authority
- CN
- China
- Prior art keywords
- florpyrauxifen
- pyrazosulfuron
- complex weedicide
- effect
- weeds
- 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
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues 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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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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 complex weedicide, it is characterised in that containing florpyrauxifen and pyrazosulfuron two kinds of active components, the complex weedicide is used to prevent and treat paddy field weed, and synergistic effect is obvious, and herbicidal spectrum is wide, and lasting period length is environmentally safe.
Description
Technical field
The invention belongs to pesticide field, discloses a kind of complex weedicide for being used to prevent and kill off paddy field weed, and in particular to
Florpyrauxifen and the complex weedicide that pyrazosulfuron 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.According to FAO (Food and Agriculture Organization of the United Nation), the whole world endangers about 250 kinds of the weeds of staple food crop, turns into influence
An important factor for crop yield.The processing mode for weeds has weeding by machine and chemical herbicide weeding at present, uses chemistry
Herbicide can not only save large quantities of labours, raise labour productivity, and common mechanical is difficult to weeds between the seedling removed
Removed, make mechanization further perfect, traditional tillage and cultivation method is also improved.Therefore, chemical herbicide is ground
Study carefully and using being increasingly valued by people.
Florpyrauxifen is the novel aromatic yl pyridines first acid herbicides of Tao benefit agriculture exploitation, and exploitation code name is
XDE-848, florpyrauxifen are efficient, quick-acting, wide spectrum, cauline leaf process after bud, available for more crops including rice,
Prevent and kill off grassy weed, broad leaved weed and nutgrass flatsedge in more areas.Because its mechanism of action is novel, so as to solve known resistance
Problem, including to acetolactate synthestase (ALS) inhibitor, acetyl-CoA carboxylase (ACCase) inhibitor, p-hydroxybenzene
Pyruvic acid dual oxide enzyme (HPPD) inhibitor, propanil, dichloro quinolinic acid, glyphosate, triazine herbicide etc. produce the miscellaneous of resistance
Grass.There is extraordinary activity to rice terrace resistance barnyard grass.
Pyrazosulfuron (Pyrazosulfuron-ethyl) belongs to sulfonylurea herbicide, is removed for selective inner sucting conduction type
Careless agent, mainly absorbed by root system, shifted rapidly in weeds plant body, suppress growth, weeds are gradually dead.Rice can divide
The medicament is solved, paddy growth is had little to no effect.Efficacy stability, safe, -35 days 25 days lasting period.One can be prevented and kill off
Year life and perennial broadleaf weed and sedge weed, such as different in nature nutgrass flatsedge, Herba Cyperi Glomerati, firefly Lin, Monochoria vaginalis, Chinese celery, mexicana, open country
Arrowhead, bog pondweed, blue or green duckweed, Eclipta prostrata, there is certain preventive effect to barnyard grass.
Herbicide is often according to Normalization rule at present, the problem of generating the resistance to the action of a drug and poisoning in many places, right
Soil generates large effect.According to our field test, the mixed of herbicide can be very good to overcome and mitigate poisoning.
Meanwhile after being compounded between two kinds of herbicides, certain synergistic effect is also had, while herbicidal spectrum is expanded, can also be reduced
Influence to soil.So we compound two kinds of active ingredients of Florpyrauxifen and pyrazosulfuron, it is above-mentioned to reach
Effect.
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, complex weedicide that production-increasing function is notable, dispenser is convenient, toxicity is low.
The weight ratio of above-mentioned complex weedicide, florpyrauxifen and pyrazosulfuron is 1：20~20：1.
Using above-mentioned complex weedicide, auxiliary agent known to a person skilled in the art is equipped with, with those skilled in that art
The formulation of the present invention can be made in known method.Its formulation that can be processed is wettable powder, dispersible oil-suspending agent, water
Dispersible granule.
Above-mentioned complex weedicide is mainly used in preventing and treating grassy weed, broad leaved weed and the nutgrass flatsedge in rice terrace.
Above-mentioned complex weedicide has the advantage that：1st, herbicide caused poisoning and the resistance to the action of a drug are effectively prevented；2nd, two
Kind active ingredient compounding has synergistic effect；3rd, formulation safety and environmental protection, drug effect can be played well；4th, it is environmentally safe.
Embodiment
In order to verify the synergistic effect of two kinds of active ingredient compoundings of florpyrauxifen and pyrazosulfuron, applicant is first
Indoor biometricses experiment is carried out under room temperature condition of pot, to determine herbicidal effect after two kinds of active ingredient different proportion mixtures,
Evaluate its synergy.Experiment selection grassy weed barnyard grass, broad leaved weed Monochoria vaginalis are as target weeds.
Test medicine solution：The accurate florpyrauxifen and pyrazosulfuron active compound for weighing constant weight, with ten times
Methanol dissolves, add in the clear water containing 0.1% Tween 80 emulsifying agent, be stirred until homogeneous, containing certain active ingredient
Solution.
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 Monochoria vaginalis, 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 2-3 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 pyrazosulfuron
At this dose to the preventive effect of target weeds, C is the synergy coefficient of mixture preparation, to evaluate the association of two kinds of active ingredient
Same-action, be synergistic effect when C is more than 10%, be antagonism during less than 10%, between ± 10% when be addition.
The raw test result of table 1florpyrauxifen and pyrazosulfuron different ratio to barnyard grass activity of weeding
The raw test result of table 2florpyrauxifen and pyrazosulfuron different ratio to the activity of weeding of Monochoria vaginalis
As can be seen from Table 1 and Table 2, after florpyrauxifen and pyrazosulfuron compound, synergy coefficient (C) is big
In 12%, there is good preventive effect to barnyard grass and Monochoria vaginalis.
Above-mentioned 2 raw survey experiments show, compared with the effect of single medicament, florpyrauxifen and pyrazosulfuron are answered
After matching somebody with somebody, after thering is good synergistic effect, two kinds of compositions to compound to barnyard grass, the preventive effect of Monochoria vaginalis, to rice terrace frequent species
Weeds have preferable prevention effect.
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：
Embodiment 1：The dispersible oil-suspending agent of 21%florpyrauxifen pyrazosulfurons
Embodiment 2：11%florpyrauxifen pyrazosulfuron wettable powders
Embodiment 3：12%florpyrauxifen pyrazosulfuron water dispersible granules
Embodiment 4：The dispersible oil-suspending agent of 10%florpyrauxifen pyrazosulfurons
Embodiment 5：The dispersible oil-suspending agent of 9%florpyrauxifen pyrazosulfurons
Embodiment 6：The dispersible oil-suspending agent of 4%florpyrauxifen pyrazosulfurons
Embodiment 7：The dispersible oil-suspending agent of 6%florpyrauxifen pyrazosulfurons
Embodiment 8：5%florpyrauxifen pyrazosulfuron water dispersible granules
Embodiment 9：6%florpyrauxifen pyrazosulfuron water dispersible granules
Embodiment 10：The dispersible oil-suspending agent of 11%florpyrauxifen pyrazosulfurons
Embodiment 11：21%florpyrauxifen pyrazosulfuron wettable powders
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 pyrazosulfuron single dose, determine each embodiment
Prevention effect.
Specific implementation is as follows：4%florpyrauxifen pyrazosulfurons dispersible oil-suspending agent (formulation English name：
OD) and other preparations preventing and treating barnyard grass, the herbicide of Monochoria vaginalis are tested.According to examples detailed above test preparation medicament and 10%
Florpyrauxifen dispersible oil-suspending agent (formulation English names：) and 10% pyrazosulfuron wettable powder (formulation English OD
Literary fame claims：WP) contrasted, experiment totally ten two processing, each handle three repetitions, cell random alignment, plot area
50m2.The 15 days and 30 days fresh weight preventive effects for observing each medicament respectively after medicine.
Respondent is two kinds of barnyard grass in field, Monochoria vaginalis weeds, and rice occurs visual test medicament without poisoning.
Table 3florpyrauxifen and pyrazosulfuron different ratio preventing and treating the rice weed test of pesticide effectiveness
From above-mentioned data, it is apparent that different complex preparations exceed to barnyard grass, Monochoria vaginalis 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.
In summary, complex weedicide has obviously synergistic effect, and the herbicidal effect of weeds in field is far above
The herbicidal effect of two kinds of single doses, expand herbicide controlling spectrum, extend the lasting period, so as to reduce the amount of labour of peasant, increase economic efficiency.
Claims (2)
- A kind of 1. complex weedicide, it is characterised in that：Active component is made up of florpyrauxifen and pyrazosulfuron, described The weight of florpyrauxifen and pyrazosulfuron ratio is 1：20~20：1.
- 2. complex weedicide according to claim 1, it is characterised in that：Wettable powder is made by active component and auxiliary material Agent, dispersible oil-suspending agent, water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771475.XA CN107787997A (en) | 2016-08-30 | 2016-08-30 | A kind of complex weedicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771475.XA CN107787997A (en) | 2016-08-30 | 2016-08-30 | A kind of complex weedicide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107787997A true CN107787997A (en) | 2018-03-13 |
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ID=61528262
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| CN201610771475.XA Pending CN107787997A (en) | 2016-08-30 | 2016-08-30 | A kind of complex weedicide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107668059A (en) * | 2017-11-16 | 2018-02-09 | 安徽众邦生物工程有限公司 | A kind of Herbicidal composition for rice field of containing chlorine fluorine pyridine ester |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661523A (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
- 2016-08-30 CN CN201610771475.XA patent/CN107787997A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661523A (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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107668059A (en) * | 2017-11-16 | 2018-02-09 | 安徽众邦生物工程有限公司 | A kind of Herbicidal composition for rice field of containing chlorine fluorine pyridine ester |
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Application publication date: 20180313 |
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