CN117598310A - Weeding composition for preventing and killing weeds and herbicide - Google Patents
Weeding composition for preventing and killing weeds and herbicide Download PDFInfo
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- CN117598310A CN117598310A CN202311455484.4A CN202311455484A CN117598310A CN 117598310 A CN117598310 A CN 117598310A CN 202311455484 A CN202311455484 A CN 202311455484A CN 117598310 A CN117598310 A CN 117598310A
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- herbicide
- tetrafluoro
- clomazone
- weeds
- preventing
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- 241000196324 Embryophyta Species 0.000 title claims abstract description 49
- 239000004009 herbicide Substances 0.000 title claims abstract description 27
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 25
- 230000003405 preventing effect Effects 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 title claims abstract description 13
- 230000002147 killing effect Effects 0.000 title claims abstract description 11
- 238000009333 weeding Methods 0.000 title claims abstract description 10
- 239000005499 Clomazone Substances 0.000 claims abstract description 25
- 239000005742 Bupirimate Substances 0.000 claims abstract description 12
- DSKJPMWIHSOYEA-UHFFFAOYSA-N bupirimate Chemical compound CCCCC1=C(C)N=C(NCC)N=C1OS(=O)(=O)N(C)C DSKJPMWIHSOYEA-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 229960000892 attapulgite Drugs 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000003995 emulsifying agent Substances 0.000 claims description 2
- MFSWTRQUCLNFOM-UHFFFAOYSA-N methyl 2-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenoxy)propanoate Chemical group C1=CC(OC(C)C(=O)OC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl MFSWTRQUCLNFOM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004530 micro-emulsion Substances 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000004560 ultra-low volume (ULV) liquid Substances 0.000 claims description 2
- 239000004563 wettable powder Substances 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- OVXMBIVWNJDDSM-UHFFFAOYSA-N (benzhydrylideneamino) 2,6-bis[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoate Chemical compound COC1=CC(OC)=NC(OC=2C(=C(OC=3N=C(OC)C=C(OC)N=3)C=CC=2)C(=O)ON=C(C=2C=CC=CC=2)C=2C=CC=CC=2)=N1 OVXMBIVWNJDDSM-UHFFFAOYSA-N 0.000 claims 1
- 239000005909 Kieselgur Substances 0.000 claims 1
- 239000007900 aqueous suspension Substances 0.000 claims 1
- 239000012053 oil suspension Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 206010059866 Drug resistance Diseases 0.000 abstract description 6
- 239000004480 active ingredient Substances 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000002195 synergetic effect Effects 0.000 abstract description 5
- YHSAMQAMZAWZPE-UHFFFAOYSA-N butyl 2-[4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxyphenoxy]propanoate Chemical group C1=CC(OC(C)C(=O)OCCCC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl YHSAMQAMZAWZPE-UHFFFAOYSA-N 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000005658 Tebufenpyrad Substances 0.000 abstract description 2
- ZZYSLNWGKKDOML-UHFFFAOYSA-N tebufenpyrad Chemical compound CCC1=NN(C)C(C(=O)NCC=2C=CC(=CC=2)C(C)(C)C)=C1Cl ZZYSLNWGKKDOML-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 13
- 241000192043 Echinochloa Species 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 244000067456 Chrysanthemum coronarium Species 0.000 description 4
- 239000000575 pesticide Substances 0.000 description 4
- 241000723353 Chrysanthemum Species 0.000 description 3
- 235000007516 Chrysanthemum Nutrition 0.000 description 3
- 235000007871 Chrysanthemum coronarium Nutrition 0.000 description 3
- 108010052167 Dihydroorotate Dehydrogenase Proteins 0.000 description 3
- 102100032823 Dihydroorotate dehydrogenase (quinone), mitochondrial Human genes 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000375 suspending agent Substances 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000005828 Pyrimethanil Substances 0.000 description 2
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010413 mother solution Substances 0.000 description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 2
- 229920000053 polysorbate 80 Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- ZLIBICFPKPWGIZ-UHFFFAOYSA-N pyrimethanil Chemical compound CC1=CC(C)=NC(NC=2C=CC=CC=2)=N1 ZLIBICFPKPWGIZ-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 241001290610 Abildgaardia Species 0.000 description 1
- 240000006995 Abutilon theophrasti Species 0.000 description 1
- 240000006891 Artemisia vulgaris Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- ACTIUHUUMQJHFO-UHFFFAOYSA-N Coenzym Q10 Natural products COC1=C(OC)C(=O)C(CC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)=C(C)C1=O ACTIUHUUMQJHFO-UHFFFAOYSA-N 0.000 description 1
- 208000011231 Crohn disease Diseases 0.000 description 1
- 229940083266 Dihydroorotate dehydrogenase inhibitor Drugs 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 239000005779 Fenpyrazamine Substances 0.000 description 1
- 102000003983 Flavoproteins Human genes 0.000 description 1
- 108010057573 Flavoproteins Proteins 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- 239000005820 Prochloraz Substances 0.000 description 1
- 241001148683 Zostera marina Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000003931 anilides Chemical class 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 230000006696 biosynthetic metabolic pathway Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- ACTIUHUUMQJHFO-UPTCCGCDSA-N coenzyme Q10 Chemical compound COC1=C(OC)C(=O)C(C\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CCC=C(C)C)=C(C)C1=O ACTIUHUUMQJHFO-UPTCCGCDSA-N 0.000 description 1
- 235000017471 coenzyme Q10 Nutrition 0.000 description 1
- 239000003363 dihydroorotate dehydrogenase inhibitor Substances 0.000 description 1
- UFIVEPVSAGBUSI-UHFFFAOYSA-N dihydroorotic acid Chemical compound OC(=O)C1CC(=O)NC(=O)N1 UFIVEPVSAGBUSI-UHFFFAOYSA-N 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- UTOHZQYBSYOOGC-UHFFFAOYSA-N fenpyrazamine Chemical compound O=C1N(C(C)C)N(C(=O)SCC=C)C(N)=C1C1=CC=CC=C1C UTOHZQYBSYOOGC-UHFFFAOYSA-N 0.000 description 1
- 235000015134 garland chrysanthemum Nutrition 0.000 description 1
- MFSWTRQUCLNFOM-SECBINFHSA-N haloxyfop-P-methyl Chemical group C1=CC(O[C@H](C)C(=O)OC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl MFSWTRQUCLNFOM-SECBINFHSA-N 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 210000001700 mitochondrial membrane Anatomy 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- PXQPEWDEAKTCGB-UHFFFAOYSA-N orotic acid Chemical compound OC(=O)C1=CC(=O)NC(=O)N1 PXQPEWDEAKTCGB-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- TVLSRXXIMLFWEO-UHFFFAOYSA-N prochloraz Chemical compound C1=CN=CN1C(=O)N(CCC)CCOC1=C(Cl)C=C(Cl)C=C1Cl TVLSRXXIMLFWEO-UHFFFAOYSA-N 0.000 description 1
- NPCOQXAVBJJZBQ-UHFFFAOYSA-N reduced coenzyme Q9 Natural products COC1=C(O)C(C)=C(CC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)C(O)=C1OC NPCOQXAVBJJZBQ-UHFFFAOYSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940035936 ubiquinone Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
-
- 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
- A01N43/72—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
- A01N43/80—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 1,2
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P13/00—Herbicides; Algicides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of agricultural herbicides, and particularly relates to a weeding composition for preventing and killing weeds and a herbicide. The weeding composition for preventing and killing weeds comprises the active ingredients of the tebufenpyrad and the bupirimate or the fenpyrad according to the proportion of 1-100:100-1 by mass ratio. The invention combines and compounds the tetrafluoro-clomazone and the bupirimate or the haloxyfop-butyl according to a certain mass ratio, has synergistic effect on preventing and killing gramineous weeds and broadleaf weeds, can improve the preventing and killing effect on field weeds, delay the generation and development of weed drug resistance, reduce the application dosage of active ingredients, and can provide support for developing novel efficient herbicides; meanwhile, the method has important significance for protecting the tetrafluoro-clomazone and reducing the drug resistance risk of the tetrafluoro-clomazone.
Description
Technical Field
The invention belongs to the technical field of agricultural herbicides, and particularly relates to a weeding composition for preventing and killing weeds and a herbicide.
Background
Tetrafluoro-clomazone is a novel arylpyrrolidinone anilide herbicide developed by dupont (midbody), CAS:2053901-33-8, molecular formula: c (C) 19 H 16 F 4 N 2 O 2 Relative molecular weight: 380.34, the structural formula is as follows:
tetrafluoro-lufenamide is a dihydroorotate dehydrogenase inhibitor that acts by inhibiting the enzyme dihydroorotate dehydrogenase in the pyrimidine de novo biosynthetic pathway. Pyrimidine de novo biosynthesis consists of 6 enzymatic steps, of which step 4 is catalyzed by dihydroorotate dehydrogenase to oxidize ubiquinone-mediated dihydroorotate to orotate. All weed dihydroorotate dehydrogenases are flavoproteins located on the outer surface of the inner mitochondrial membrane, and inhibition of this pathway is fatal to most organisms due to the core action of nucleotides. The tetrafluoro-clomazone is suitable for preventing and removing various grassy weeds, and also can prevent and remove some broadleaf weeds and sedge which are difficult to prevent and remove, and can improve the yield and quality of crops by preventing and removing harmful weeds which compete with crops for moisture, nutrient, illumination and space.
Although the tetrafluoro-clomazone has the advantages, if the tetrafluoro-clomazone is singly used for a long time, the generation and development of drug resistance of weeds are caused. In the agricultural production process, the combined use of herbicidal components with different activities is a research and development hot spot in the pesticide field in order to improve the prevention effect on weeds, delay the generation and development of drug resistance of weeds and reduce the application dosage of active ingredients. At present, no report on the compounding of the tetrafluoro-clomazone and the bupirimate or the haloxyfop-R-methyl is seen.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a weeding composition for preventing and removing weeds and a herbicide.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the weeding composition for preventing and killing weeds comprises the active ingredients of the tebufenpyrad and the bupirimate or the fenpyrad according to the proportion of 1-100:100-1 by mass ratio.
The effect is better, and the mass ratio of the tetrafluoro-clomazone to the bupirimate is 1-10:15-1.
The effect is better, and the mass ratio of the tetrafluoro-clomazone to the fenpyrad is 1-30:20-1.
The invention also provides a weed control herbicide, which comprises the weed control weeding composition and an agriculturally acceptable carrier and/or surfactant.
More specifically, the carrier is selected from one or more of clay, silicon dioxide, bentonite, diatomite, light calcium carbonate, attapulgite and white carbon black; the surfactant is selected from one or more of an emulsifier, a dispersant and a wetting agent.
More specifically, the dosage form of the herbicide is wettable powder, suspending agent, water suspending agent, dispersible oil suspending agent, microemulsion or ultra-low volume liquid.
More specifically, the herbicide for controlling weeds further comprises a safener.
Compared with the prior art, the invention has the following beneficial effects:
the invention combines and compounds the tetrafluoro-clomazone and the bupirimate or the haloxyfop-butyl according to a certain mass ratio, has synergistic effect on preventing and killing grassy weeds such as barnyard grass and the like and broadleaf weeds such as crowndaisy chrysanthemum, can improve the preventing and killing effect on field weeds, delay the generation and development of weed drug resistance, reduce the application dosage of active ingredients and provide support for developing novel efficient herbicides; meanwhile, the method has important significance for protecting the tetrafluoro-clomazone and reducing the drug resistance risk of the tetrafluoro-clomazone.
Detailed Description
The following description of the embodiments of the present invention will be apparent from, and is intended to provide a thorough description of, the embodiments of the present invention, and not a complete description of, the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Examples: weed control agent screening
1. Weeds to be tested
Barnyard grass (Echinochloa crusgalli) as a grass weed and a garland chrysanthemum (Abutilon theophrasti) as a broadleaf weed
2. Test agent
98.5% of tetrafluoro-clomazone, 96% of bupirimate original drug and 98% of haloxyfop-methyl original drug
Dissolving the test reagent with dimethyl sulfoxide solvent, diluting with 0.1% Tween-80 aqueous solution to obtain single-dose mother solution, and diluting each single-dose mother solution and the mixed solution into 5 mass concentration gradients for use.
3. The test method comprises the following steps: reference to section 4 of the pesticide "NY/T1155.4-2006 in-house bioassay test guidelines: activity measurement test Stem and leaf spray method
The test soil is quantitatively filled into 4/5 parts of the basin, and the soil is completely wetted by adopting a basin bottom infiltrating irrigation mode. The weed seeds to be tested collected in the field of the Daxing sheet area of the Kaifeng river street Luo Hanzhuang village in Kaifeng sandy city of Hunan province are uniformly sowed on the surface of soil, covered with 0.5cm of soil, and transferred into a greenhouse for conventional cultivation, so that the soil is kept moist. And (5) thinning and setting 15 plants per pot after the weeds are regularly planted. Spraying the test liquid on the stems and leaves of the weed seedlings by adopting a walking spray tower when the weed seedlings grow to 3-leaf stage, repeating for 4 times when the weed seedlings are treated, and simultaneously, setting 0.1% Tween-80 aqueous solution treatment as blank control; and naturally air-drying the liquid medicine on the surface of the treated seedling, transferring the seedling into a greenhouse for continuous culture, measuring the fresh weight of the overground part of the tested weed after 14d of the liquid medicine, and calculating the control effect of the medicament on the fresh weight of the overground part of the tested weed.
4. Evaluation of Combined action
The combined action mode of the herbicide is evaluated according to the Gowing method, and the calculation formula is as follows:
wherein:
the weed control effect when the dosage of the X-herbicide A is P;
weed control when the dosage of the herbicide B is Q;
E 0 -theoretical control effect when the dosage of herbicide a is P + theoretical control effect when the dosage of herbicide B is Q;
e- -actual control effect of the herbicide A and the herbicide B after being mixed according to the proportion.
5. Evaluation criteria
E-E 0 More than 10% is synergistic; E-E 0 -10% antagonism; E-E 0 Values between.+ -. 10% are additive and the results are shown in tables 1-2.
TABLE 1 toxicity measurement results of complex of Teflonicamid (A) and bupirimate (B) on barnyard grass
As can be seen from table 1, when the tetrafluoro-clomazone is compounded with the bupirimate, the ratio of the tetrafluoro-clomazone to the bupirimate is 1-10:15-1 shows synergistic effect on barnyard grass in the mass ratio range. Therefore, the combination and the compounding of the tetrafluoro-clomazone and the bupirimate can improve the control effect on barnyard grass weeds and reduce the dosage of pesticides.
TABLE 2 toxicity measurement results of Teflonicamid (A) and Prochloraz (C) compounded on Crohn's hemp
As can be seen from table 2, when the tetrafluoro-clomazone is compounded with the fenpyrad, the ratio of the tetrafluoro-clomazone to the fenpyrad is 1-30: the synergistic effect is shown on the chrysanthemum in the mass ratio range of 20-1. Therefore, the combined compounding of the tetrafluoro-clomazone and the fenpyrazamine can improve the prevention and removal effect on the crowndaisy chrysanthemum weeds and reduce the dosage of pesticides.
In conclusion, when the tetrafluoro-clomazone and the pyrimethanil or the haloxyfop-butyl are combined and compounded in a certain mass ratio, the tetrafluoro-clomazone and the pyrimethanil act as synergism to prevent and remove grassy weeds such as barnyard grass and broadleaf weeds such as crowndaisy chrysanthemum, compared with single components, the compound herbicide can improve the preventing and removing effect on field weeds, delay the generation and development of weed resistance, reduce the application dosage of active components, and provide support for developing novel efficient herbicides.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. The weeding composition for preventing and killing weeds is characterized in that the effective components of the weeding composition are prepared from tetrafluoro-clomazone and pyribenzoxim or haloxyfop-methyl according to the proportion of 1-100:100-1 by mass ratio.
2. The weed control herbicidal composition according to claim 1, wherein the mass ratio of the tetrafluoro-clomazone to the bupirimate is 1 to 10:15-1.
3. The weed control herbicidal composition according to claim 1, wherein the mass ratio of the tetrafluoro-clomazone to the fenpyrad is 1 to 30:20-1.
4. A weed control herbicide comprising the weed control herbicidal composition according to any one of claims 1 to 3 and an agriculturally acceptable carrier and/or surfactant.
5. The herbicide for weed control according to claim 4, characterized in that the carrier is one or more selected from the group consisting of clay, silica, bentonite, diatomaceous earth, light calcium carbonate, attapulgite and white carbon black; the surfactant is selected from one or more of an emulsifier, a dispersant and a wetting agent.
6. The herbicide for weed control according to claim 4, wherein the herbicide is in the form of wettable powder, suspension, aqueous suspension, dispersible oil suspension, microemulsion or ultra-low volume liquid.
7. The weed-controlling herbicide according to claim 4, further comprising a safener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311455484.4A CN117598310A (en) | 2023-11-03 | 2023-11-03 | Weeding composition for preventing and killing weeds and herbicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311455484.4A CN117598310A (en) | 2023-11-03 | 2023-11-03 | Weeding composition for preventing and killing weeds and herbicide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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