CN110800749A - Weeding composition containing halauxifen-methyl and pyriftalid - Google Patents
Weeding composition containing halauxifen-methyl and pyriftalid Download PDFInfo
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- CN110800749A CN110800749A CN201911074998.9A CN201911074998A CN110800749A CN 110800749 A CN110800749 A CN 110800749A CN 201911074998 A CN201911074998 A CN 201911074998A CN 110800749 A CN110800749 A CN 110800749A
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- Prior art keywords
- fluroxypyr
- meptyl
- pyriftalid
- weeding composition
- weeding
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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
- A01N43/48—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
-
- 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 weeding composition containing fluroxypyr ester and pyriftalid, wherein the effective components of the weeding composition consist of the fluroxypyr ester and pyriftalid; the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 1-10: 5 to 40. The weeding composition is mainly used for annual weeds in paddy fields, and is particularly suitable for preventing and controlling ludwigia prostrata, day-shine fimbristylis, digitaria sanguinea, cyperus rotundus, feltwort, arthrodia, lophatherum gracile or monochoria vaginalis in the paddy fields. The herbicide composition has the advantages of improving the use effect, expanding the weed control spectrum, reducing the use dosage by compounding, reducing the use times, reducing the pesticide application cost, delaying the lasting period of the pesticide effect, controlling the weed population migration, reducing the drug resistance of weeds, maintaining the agricultural ecological balance, protecting the environment and having good economic and social benefits.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a weeding composition containing chloropyridyl ester and pyriftalid.
Background
The chlorofluoropyridinates are aryl picolinate herbicides for rice fields. After application of Chlorofluoropyridine ester 2After 3 days, obvious poisoning symptoms can appear on sensitive weeds; post-dose 7
After 10 days, the sensitive weeds are completely died, and the weeding is complete. Toxicity tests show that the fluroxypyridine ester has extremely low toxicity to mammals and aquatic animals, is in a micro-toxicity grade and is highly safe to the environment. The fluroxypyr meptyl has good control effect on barnyard grass, moleplant seed, broad-leaved grass and nutgrass flatsedge which are difficult to control at present, and particularly the problem of artificial weed pulling can be basically solved in the later stage of rice. However, it has inhibitory action on ludwigia prostrata, daylily and digitaria but cannot be effectively prevented and removed, and is recommended to be compounded with other medicines.
The pyriftalid is a broad-spectrum herbicide for early-stage rice seedling, is specially developed for transplanting and direct-seeding rice fields, has the action mechanism of inhibiting the synthesis of acetolactate synthase (ALS), is mainly absorbed by roots and stem bases of sensitive weeds, generates metabolites with good drug effect after the metabolism of plant bodies, and stops the growth of the weeds through systemic conduction so as to die. The herbicide is mainly used for preventing and removing gramineous weeds such as barnyard grass and the like in a rice field, is safe for rice afterculture crops, and is generally applied at the dosage of 100-300 g/hm 2. The degradation speed of the pyriftalid in the environment and the soil is relatively high, and the degradation half-life DT50 is 5-20 days. The results of indoor active biological tests and field efficacy tests show that the control effect on barnyard grass and moleplant seed transplanted in the paddy field is better, but the control effect on broad-leaved weeds and nutgrass flatsedge such as ludwigia prostrata, cyperus rotundus, feltwort, arthroenophylla, monochoria vaginalis and the like is not good, and the method is recommended to be mixed with other medicaments with different action mechanisms or take an alternate action.
In order to effectively prevent and kill off gramineous weeds, broadleaf weeds and sedge weeds in paddy fields by one-time application, the fluroxypyr-meptyl and the cloransulam-ethyl are required to be compounded, so that the using effect is improved, the weed killing spectrum is expanded, the application frequency is reduced, and the application cost is reduced.
The two are compounded, so that the use effect is improved, the weed control spectrum is enlarged, the use dosage is reduced, the safety is high, the use frequency is reduced, the pesticide application cost is reduced, the lasting period of the pesticide effect is delayed, the weed population migration can be controlled, the drug resistance of weeds is reduced, the agricultural ecological balance is maintained, the environment is protected, and good economic benefit and social benefit are achieved.
Disclosure of Invention
The invention aims to provide a weeding composition containing clofluropyridine ester and pyriftalid, which has remarkable synergistic effect and wide weed control spectrum, and is particularly used for preventing and controlling ludwigia prostrata, daywofly, digitaria sanguinalis, cyperus rotundus, feltwort, arthroenophyta, lophatherum gracile, monochoria vaginalis and the like.
The purpose of the invention can be realized by the following technical scheme:
a weeding composition containing fluroxypyr ester and pyriftalid comprises the effective components of the fluroxypyr ester and pyriftalid; the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 1-10: 5 to 40.
In a further scheme, the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 2-9: 5-40.
Or the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 10: 5-17.
Or the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 1: 40.
in a further scheme, the mass of the effective components accounts for 6-70% of the mass of the weeding composition.
In a further scheme, the dosage form of the weeding composition is a dispersed oil suspending agent, missible oil, water dispersible granules or a suspending agent.
In a further scheme, the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise an emulsifier, a dispersing agent, a wetting agent, a thickening agent, a disintegrating agent, a defoaming agent and a carrier.
In a further scheme, the weeding composition is used for preventing and killing annual weeds in the paddy field.
In particular, the weeding composition is used for preventing and controlling ludwigia prostrata, daywonderweed, digitaria sanguinea, cyperus rotundus, bodhi, arthroncus, lophatherum gracile or monochoria vaginalis in a paddy field.
The active components in the weeding composition are the fluroxypyr-meptyl and the fluroxypyr-meptyl, the using amount of the fluroxypyr-meptyl and the applying amount of the fluroxypyr-meptyl and the combination ratio of the fluroxypyr-meptyl and the clomepyr-meptyl and the using amount of the fluroxypyr-meptyl and the applying amount of the clomeptyl and the using amount of the clomeptyl and the applying amount of the clomep.
The emulsifier is one or more of calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, dibenzylphenol polyoxyethylene ether, benzyl xylenol polyoxyethylene ether, phenyl phenol polyoxyethylene ether, phenylpropyl phenethyl phenol polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, cumyl phenol formaldehyde resin polyoxyethylene ether, phenethyl phenol polyoxypropylene polyoxyethylene ether, phenethyl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, fatty amine polyoxyethylene ether and castor oil polyoxyethylene ether.
The dispersing agent is one or more of alkylphenol polyoxyethylene ether formaldehyde condensate, naphthalenesulfonate formaldehyde condensate, p-methoxyl fatty amide benzene sulfonic acid, calcium lignosulfonate, polycarboxylate, alkylphenol polyoxyethylene ether sulfate, methylene dinaphthalene sodium sulfonate, calcium alkylbenzene sulfonate, fatty acid ester sulfate, alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether.
The wetting agent is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium butyl naphthalene sulfonate, sodium alkyl sulfonate, tea seed powder, Chinese honeylocust fruit powder and soapberry powder.
The thickening agent is one or more of polyvinyl acetate, organic bentonite, xanthan gum, gelatin, gum arabic, magnesium aluminum silicate, phenolic resin, hydroxymethyl cellulose and sodium alginate.
The disintegrating agent is one or more of sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, croscarmellose sodium, crospovidone, chitosan, sodium alginate sodium bicarbonate, magnesium chloride, aluminum chloride, sodium chloride, urea and ammonium sulfate.
The defoaming agent is one or more of polydimethylsiloxane, polydimethylsiloxane and polyoxypropylene ethylene oxide glycerol ether.
The carrier is divided into a solid carrier and a solvent, wherein the solid carrier is one or more of organic bentonite, white carbon black, kaolin, light calcium carbonate, sodium sulfate, ammonium sulfate, diatomite, starch, argil and the like, and the solvent is one or more of deionized water, methyl oleate, toluene, xylene, chlorobenzene, solvent oil, α -methylnaphthalene, turpentine, dichloromethane, trichloromethane, methanol, ethanol, glycerol, ethylene glycol, butanol, isoamyl alcohol, propylene glycol, cyclohexanone, isophorone, acetophenone, ethyl acetate, propyl acetate, butyl acetate, N-Dimethylformamide (DMF), dimethyl sulfoxide (DMSO), No. 150 solvent oil, cellosolve and the like, and the carrier can be used alone or in a compound way.
The above various adjuvants or carriers are commercially available.
The weeding composition has a synergistic effect, is mainly used for annual weeds in direct seeding fields or transplanting fields of rice, and is particularly suitable for the malignant weeds which are difficult to control in paddy fields such as ludwigia prostrata, common stonecrop herb, large crabgrass, cyperus rotundus, bodhi, arthroenia, lophatherum gracile, monochoria vaginalis and the like. The two are compounded, so that the use effect is improved, the weed control spectrum is enlarged, the use dosage is reduced, the safety is high, the use frequency is reduced, the pesticide application cost is reduced, the lasting period of the pesticide effect is delayed, the weed population migration can be controlled, the drug resistance of weeds is reduced, the agricultural ecological balance is maintained, the environment is protected, and good economic benefit and social benefit are achieved.
Detailed Description
The invention is further illustrated below in the specific examples of several different dosage forms. The invention is by no means limited to these examples. All percentages in the formulation are by weight.
Firstly, formulation example of a dosage form:
example 1, 6% Chlorofluoropyridyl ester-pyriftalid emulsifiable concentrate
Example 2, 46% Chlorofluoropyridyl ester-pyriftalid Water dispersible granule
Example 3, 36% Chlorpyriproxyfen dispersible oil suspension
Example 4, 27% Chlorpyriproxyfen suspending agent
Secondly, indoor biological activity determination:
the reasonability of the formula is verified by measuring the indoor biological activity of the fluroxypyr-meptyl and pyriftalid composition herbicide on the weeds in the paddy field.
The test method comprises the following steps: the method comprises sowing quantitative weeds (100 plants per pot) in pot by greenhouse pot culture method, covering with fine soil of 0.5-1cm thickness, culturing in greenhouse, spraying stem and leaf when weeds grow to 5cm, repeating the treatment for 4 times, and treating without drug as control. And (4) culturing the treated test material in a greenhouse, and regularly observing the growth condition of the target weeds. After the test treatment for 20 days, weighing the fresh weight of the overground part of weeds.
The investigation method adopts an absolute value investigation method, firstly investigates the fresh weight of the residual weeds in each pot, and then calculates the fresh weight control effect of each treatment according to the following formula: e is (C-T)/C is multiplied by 100 percent, wherein E is the actual control effect, C is the fresh weight of the control weed, and T is the fresh weight of the treated weed.
The combination of the two was evaluated for the type of action on weeds by the Gowing method. The theoretical control effect of the mixed herbicide is calculated according to the following formula: e0＝X+Y(100-X)/100
In the formula: x is the fresh weight control effect on weeds when the dosage of the fluroxypyr meptyl is P;
y is the fresh weight control effect on weeds when the using amount of the pyriftalid is Q;
E0is the theoretical prevention effect of X + Y.
Table 1: combined virulence effect of herbicide compositions on large crabgrass (spray method)
As can be seen from Table 1 above, the compound of fluroxypyr-meptyl has the effect of inhibiting E of large crabgrass0-E value from 8.27 to 19.64, wherein the fluroxypyr ester, pyriftalid is present in a ratio of 1: 40. 2-9: 5-40, 10: 5-17 when compounding, E0E values are all greater than 10, the type of combined action being synergistic.
Table 2: combined toxicity effect (spraying method) of herbicide composition on ludwigia prostrata
As can be seen from the above table 2, the compound of fluroxypyr-meptyl and pyriftalid has the effect of treating E of ludwigia prostrata0-E value between 8.38 and 20.32, wherein the fluroxypyr ester, pyriftalid are present in a ratio of 1: 29-40, 2-9: 5-40, 10: 5-17 when they are compounded, E0E values are all greater than 10, the type of combined action being synergistic.
Table 3: combined toxicity of herbicide composition to water bamboo leaves (spraying method)
As can be seen from Table 3 above, the complex of fluroxypyr-meptyl and pyriftalid has the effect of inhibiting E in lophatherum gracile0E value of 8.73-20.23Wherein the fluroxypyr-meptyl and the pyriftalid are as follows: 29-40, 2-9: 5-40, 10: 5-17 when they are compounded, E0E values are all greater than 10, the type of combined action being synergistic.
Third, the embodiment of the drug effect:
the crop to be tested is direct seeding field rice, and the test object is annual weed mainly comprising barnyard grass and the like.
Spraying water according to the effective dosage of 100g per mu, and investigating the control effect.
Table 4: test result of pesticide effect of composition of fluroxypyr-meptyl and pyriftalid on preventing and removing weeds in paddy field
As can be seen from the test results in Table 4, the comprehensive control effect of the 44 percent of the fluroxypyr meptyl-meptyl water dispersible granule for controlling the annual weeds in the paddy fields is 96.19 percent, and the control effect of the fluroxypyr meptyl water dispersible granule and the fluroxypyr meptyl emulsifiable concentrate is obviously better than that of the 50 percent of the fluroxypyr meptyl water dispersible granule and the 3 percent of the fluroxypyr meptyl emulsifiable concentrate. Therefore, the composition of the fluroxypyr-meptyl and the fluroxypyr-meptyl has obvious synergistic effect, improves the using effect and enlarges the weed control spectrum.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications can be made to the embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (9)
1. A weeding composition containing halauxifen-methyl and pyriftalid is characterized in that: the active ingredients of the weeding composition consist of fluroxypyr-meptyl and pyriftalid; the mass ratio of the fluroxypyr-meptyl to the cloquintocet-mexyl is 1-10: 5 to 40.
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the fluroxypyr-meptyl to the clofenpyr-methyl is 2-9: 5-40.
3. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the fluroxypyr-meptyl to the clofenpyr-methyl is 10: 5-17.
4. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the fluroxypyr-meptyl to the cloransulam-ethyl is 1: 40.
5. a herbicidal composition according to any one of claims 1 to 4, characterized in that: the mass of the effective components accounts for 6-70% of the mass of the weeding composition.
6. A herbicidal composition according to any one of claims 1 to 4, characterized in that: the dosage form of the weeding composition is a dispersed oil suspending agent, missible oil, water dispersible granules or a suspending agent.
7. A herbicidal composition according to any one of claims 1 to 4, characterized in that: the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise an emulsifier, a dispersing agent, a wetting agent, a thickening agent, a disintegrating agent, a defoaming agent and a carrier.
8. Use of a herbicidal composition according to any one of claims 1 to 4, characterized in that: the weeding composition is used for preventing and removing annual weeds in the paddy field.
9. Use according to claim 8, characterized in that: the weeding composition is used for preventing and treating ludwigia prostrata, daywonderweed, digitaria sanguinea, cyperus rotundus, bodhi, Equisetum arvense, Lophatherum gracile or monochoria vaginalis in a paddy field.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911074998.9A CN110800749A (en) | 2019-11-05 | 2019-11-05 | Weeding composition containing halauxifen-methyl and pyriftalid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911074998.9A CN110800749A (en) | 2019-11-05 | 2019-11-05 | Weeding composition containing halauxifen-methyl and pyriftalid |
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| CN110800749A true CN110800749A (en) | 2020-02-18 |
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| CN201911074998.9A Withdrawn CN110800749A (en) | 2019-11-05 | 2019-11-05 | Weeding composition containing halauxifen-methyl and pyriftalid |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684391A (en) * | 2012-07-24 | 2015-06-03 | 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 |
| CN107751208A (en) * | 2016-08-19 | 2018-03-06 | 燕化永乐（乐亭）生物科技有限公司 | A kind of complex weedicide |
-
2019
- 2019-11-05 CN CN201911074998.9A patent/CN110800749A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104684391A (en) * | 2012-07-24 | 2015-06-03 | 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 |
| CN107751208A (en) * | 2016-08-19 | 2018-03-06 | 燕化永乐（乐亭）生物科技有限公司 | A kind of complex weedicide |
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Application publication date: 20200218 |
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