CN111296470A - Weeding composition containing metazosulfuron and pyriftalid and application thereof - Google Patents

Weeding composition containing metazosulfuron and pyriftalid and application thereof Download PDF

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Publication number
CN111296470A
CN111296470A CN202010183111.6A CN202010183111A CN111296470A CN 111296470 A CN111296470 A CN 111296470A CN 202010183111 A CN202010183111 A CN 202010183111A CN 111296470 A CN111296470 A CN 111296470A
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China
Prior art keywords
pyriftalid
metazosulfuron
weeding composition
weeds
herbicide
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CN202010183111.6A
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Chinese (zh)
Inventor
陈金红
黄自云
张建邦
曹晓晓
其他发明人请求不公开姓名
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ANHUI ZHONGBANG BIOLOGICAL ENGINEERING CO LTD
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ANHUI ZHONGBANG BIOLOGICAL ENGINEERING CO LTD
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Priority to CN202010183111.6A priority Critical patent/CN111296470A/en
Publication of CN111296470A publication Critical patent/CN111296470A/en
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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

Abstract

The invention discloses a weeding composition containing metazosulfuron and pyriftalid, wherein the active ingredients of the weeding composition are metazosulfuron and pyriftalid; the mass ratio of the metazosulfuron to the pyriftalid is 1-10: 5 to 30. The invention also discloses application of the weeding composition in preventing and removing annual weeds in rice transplanting fields. Has special effect on preventing and treating barnyard grass, water onion and edible tulip. The herbicide composition has the advantages of high herbicidal activity, wide herbicidal spectrum and convenient use, is safe to rice, belongs to an environment-friendly herbicide, expands the herbicidal spectrum, has obvious synergistic effect, reduces the using dosage, has high safety, reduces the times of using the herbicide, reduces the cost of pesticide application, can control the change of weed populations, reduces the drug resistance of the weeds, maintains the agricultural ecological balance and protects the environment, and is worthy of popularization.

Description

Weeding composition containing metazosulfuron and pyriftalid and application thereof
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a weeding composition containing metazosulfuron and pyriftalid and application thereof.
Background
Metazosulfuron, common english name metazosulfuron, CAS number: 868680-84-6, formula: c15H18ClN7O7S, a new generation of sulfonylurea herbicide developed by Nissan chemical Co., Ltd in 2004, is an acetolactate synthase (ALS) inhibitor and a branched chain amino acid synthesis inhibitor, and has an action mechanism in plants to inhibit biosynthesis of key amino acids valine, leucine and isoleucine, thereby inhibiting cell division and inhibiting plant growth. Although the action target of the metazosulfuron is the same as that of the prior sulfonylureas, but the receptor is different, so the metazosulfuron has good control effect on the resistance generated by the prior sulfonylureas, is mainly used for controlling the crowndaisy hemp, the amaranthus retroflexus, the crab grass and the barnyard grass in rice and wheat fields, and is obtained by further optimizing on the basis of the herbicide halosulfuron-methyl structure.
The pyriftalid is a pyrimidine oxy (thio) benzoate herbicide, and the structure of the pyriftalid is similar to that of pyrimidine hydroxybenzoic acid. The herbicide is a broad-spectrum herbicide for early rice seedling stage, and is specially developed for transplanting and direct seeding rice. The mechanism of action is to inhibit the synthesis of acetolactate synthase (ALS). The herbicide composition is used for preventing and controlling gramineous weeds and part of broadleaf weeds in paddy fields, in the paddy fields, the pyriftalid is absorbed by the root tips of paddy rice, a small part of the pyriftalid is transmitted to leaves, and a small part of the herbicide is absorbed by the budding weeds. The results of indoor active biological tests and field efficacy tests show that the weeding composition has better control effect on annual gramineous weeds and cyperaceae partial broadleaf weeds transplanted in the paddy field. The composition has good control effect on barnyard grass and moleplant seed transplanted in a paddy field, and has certain control effect on broad-leaved weeds and nutgrass flatsedge such as ludwigia prostrata, cyperus rotundus, boenningt, burclover, monochoria vaginalis and the like. The recommended dosage is safe for rice. After use, resistance development is noted, and combinations or shifts with other agents having different mechanisms of action are suggested.
A binary compound patent for preventing and killing annual weeds in rice transplanting fields by metazosulfuron and pyriftalid is not reported at present. The two are compounded according to a certain proportion, and have outstanding effect on weeds in the rice transplanting field.
Disclosure of Invention
The invention aims to provide a weeding composition containing metazosulfuron and pyriftalid and application thereof, and the weeding composition has a remarkable effect on weeds in rice transplanting fields.
The purpose of the invention is realized by the following technical scheme:
the weeding composition containing the metazosulfuron and the pyriftalid comprises the active ingredients of the weeding composition containing the metazosulfuron and the pyriftalid; the mass ratio of the metazosulfuron to the pyriftalid is 1-10: 5 to 30.
In a further scheme, the mass ratio of the metazosulfuron to the pyriftalid is 4-7: 5-30.
In a further scheme, the mass ratio of the metazosulfuron to the pyriftalid is 10: 5-13.
In a further scheme, the sum of the mass of the metazosulfuron and the pyriftalid accounts for 6-40% of the total 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 at least one of an emulsifier, a dispersing agent, a wetting agent, a thickening agent, a disintegrating agent, a defoaming agent and a carrier.
The emulsifier is one or more of alkylphenol polyoxyethylene, triphenylethylene polyoxyethylene, benzyl phenol polyoxyethylene, phenethyl phenol polyoxyethylene, fatty alcohol polyoxyethylene, phenethyl phenol polyoxyethylene polyoxypropylene, fatty amine polyoxyethylene, castor oil polyoxyethylene, calcium dodecyl benzene sulfonate and styryl phenyl polyoxyethylene.
The dispersing agent is one or more of alkylphenol polyoxyethylene ether formaldehyde condensate, ammonium sulfate, naphthalenesulfonate formaldehyde condensate, p-methoxy fatty amido benzenesulfonic acid, calcium lignosulfonate, polycarboxylate, alkylphenol polyoxyethylene ether sulfate, methylene dinaphthalene sodium sulfonate, calcium alkyl benzene sulfonate, fatty acid ester sulfate, alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether.
The antifreezing agent is one or more of calcium chloride, methanol, ethanol, ethylene glycol, propylene glycol and glycerol.
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 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 invention also aims to provide the application of the weeding composition in preventing and killing annual weeds in the transplanted paddy fields.
Compared with the prior art, the invention has the beneficial effects that:
the weeding composition is used for annual weeds in rice transplanting fields, has special effects on controlling barnyard grass, allium mongolicum regel and edible tulip, and also has good control effects on cleavers, cyperus rotundus, ludwigia prostrata, stephania japonica, paspalum distichum, arrowheads, eclipta prostrata, potamogeton malabaris, feltwort roots, and the like. The herbicide composition has the advantages of high herbicidal activity, wide herbicidal spectrum and convenient use, is safe to rice, belongs to an environment-friendly herbicide, expands the herbicidal spectrum, has obvious synergistic effect, reduces the using dosage, has high safety, reduces the times of using the herbicide, reduces the cost of pesticide application, can control the change of weed populations, reduces the drug resistance of the weeds, maintains the agricultural ecological balance and protects the environment, and is worthy of popularization.
Detailed Description
The present invention will be further described with reference to the following examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. All the percentages in the formula are mass fractions.
Firstly, formulation example of a dosage form:
example 1, 6% emulsifiable concentrate
Figure BDA0002413246560000031
Adding 150# solvent oil according to the proportion, starting stirring, then adding the other components, mixing and stirring until the original medicine is dissolved completely, and controlling the temperature of heating equipment to be about 50 ℃ during stirring to prepare the 6% metazosulfuron-methyl-pyriftalid emulsifiable solution.
Example 2, 25% Water dispersible granule
Figure BDA0002413246560000041
The raw medicines and the components are fed according to the proportion and are initially mixed for 1 hour by a mixer. After being pulverized for 2-3 hours, the pulverized material is put into a colter mixer and added with water to be uniformly stirred. And putting the mixture into a granulator for granulation. And (3) putting the mixture into drying equipment, controlling the temperature to be 50-60 ℃, and drying to obtain the 25% metazosulfuron-methyl-pyriftalid water dispersible granule.
Example 3, 34% dispersible oil suspension
Figure BDA0002413246560000042
The components are added according to the proportion, stirred for half an hour and mixed evenly. Open the valve and get into the colloid mill and sand, get into the sand mill sanding, open circulating water control temperature, according to the product characteristic, select different temperatures, sand for 2.5 hours. After sanding, the mixture is evenly mixed under high shear and homogeneous stirring for half an hour. The 34 percent oxazosulfuron-pyriftalid dispersible oil suspending agent is prepared.
Example 4, 40% suspending agent
Figure BDA0002413246560000043
The components are fed according to the proportion, stirred for 20 minutes and uniformly mixed, put into a colloid mill for primary sanding, and put into a sand mill for sanding by controlling the temperature by an air source for 2.5 to 3.0 hours, and then put into high-speed homogenizing, shearing and stirring for 10 minutes.
Secondly, indoor biological activity determination:
the rationality of the formula is verified by measuring the indoor biological activity of the herbicide composition containing metazosulfuron and pyriftalid on the weeds in the paddy field.
The test method comprises the following steps: adopting a greenhouse potting method, sowing quantitative weed seeds (100 seeds per pot) in a pot, covering with fine soil with the thickness of 0.5-1 cm, culturing in a greenhouse, carrying out stem and leaf spraying treatment when weeds grow to 2cm after emerging, repeating the treatment for 4 times, and setting the treatment without medicament as a 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. Theoretical control effect of mixed herbicideCalculated according to the following formula: e0＝X+Y(100-X)/100
In the formula: when the dosage of X is P, the fresh weight control effect on weeds is achieved;
y is the fresh weight control effect on weeds when the using amount of the pyriftalid is Q;
E0is a theoretical prevention effect.
Table 1: combined virulence effects of herbicide compositions on bald barnyard grass (foliage spray)
Figure BDA0002413246560000051
Figure BDA0002413246560000061
As can be seen from Table 1 above, when the metazosulfuron (A) and the pyriftalid (B) are compounded, A + B is E-E of Carex baccans0A value of between 7.58 and 14.55, wherein A: b is 1:30, 4-7: 5-30 or 10: 5-13 times, E-E0Both are more than 10, which shows that the metazosulfuron (A) and the pyriftalid (B) generate synergistic effect under the condition of the mixture ratio.
Table 2: combined virulence effect of herbicide composition on allium fistulosum (stem leaf spray)
Figure BDA0002413246560000062
Figure BDA0002413246560000071
As can be seen from the above Table 2, when the metazosulfuron (A) and the pyriftalid (B) are compounded, the A + B is the E-E of the allium fistulosum0A value between 5.64 and 15.46, wherein A: b is 1:30,4-7: 5-30 or 10: 5-13 times, E-E0Both are more than 10, which shows that the metazosulfuron (A) and the pyriftalid (B) generate synergistic effect under the condition of the mixture ratio.
Table 3: combined virulence effect of herbicide composition on edible tulip (stem leaf spray)
Figure BDA0002413246560000072
Figure BDA0002413246560000081
As can be seen from the above Table 3, when the metazosulfuron (A) and the pyriftalid (B) are compounded, the A + B pairs of E-E of the edible tulip0A value between 6.21 and 15.69, wherein A: b is 4-7: 5-30 or 10: 5-13 times, E-E0Both are more than 10, which shows that the metazosulfuron (A) and the pyriftalid (B) generate synergistic effect under the condition of the mixture ratio.
Third, the embodiment of the drug effect:
test crops and subjects: the crop to be tested is a paddy field, and the test object is annual weed mainly comprising barnyard grass and the like. After transplanting, the seedlings are sprayed by stem leaves and are applied to rice after the rice seedlings are sufficiently slowed down and before most weeds emerge.
The test results in Table 4 show that the comprehensive control effects of 25% of the azimilion-pyriftalid water dispersible granule (4: 21), 34% of the azimilion-pyriftalid dispersible oil suspending agent (4: 30) and 40% of the azimilion-pyriftalid suspending agent (10:30) are all more than 90%, wherein the 25% of the azimilion-pyriftalid water dispersible granule has the optimal control effect, and the comprehensive control effect on annual weeds in rice transplanting fields reaches 94.91%. Therefore, the composition of the metazosulfuron and the pyriftalid in the three proportions has obvious synergistic effect, can improve the control effect and expand the weed control spectrum.
Table 4: test result of pesticide effect of composition containing metazosulfuron and pyriftalid on preventing and killing weeds in paddy field
Figure BDA0002413246560000091
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 (7)

1. A weeding composition containing metazosulfuron and pyriftalid is characterized in that: the active ingredients of the weeding composition are metazosulfuron and pyriftalid; the mass ratio of the metazosulfuron to the pyriftalid is 1-10: 5 to 30.
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the metazosulfuron to the pyriftalid is 4-7: 5-30.
3. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the metazosulfuron to the pyriftalid is 10: 5-13.
4. A herbicidal composition according to claim 1, characterized in that: the sum of the mass of the metazosulfuron and the pyriftalid accounts for 6-40% of the total mass of the weeding composition.
5. A herbicidal composition according to claim 1, 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.
6. A herbicidal composition according to claim 1, characterized in that: the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise at least one of an emulsifier, a dispersing agent, a wetting agent, a thickening agent, a disintegrating agent, a defoaming agent and a carrier.
7. Use of a herbicidal composition according to any one of claims 1 to 6, characterized in that: the weeding composition is used for preventing and removing annual weeds in rice transplanting fields.
CN202010183111.6A 2020-03-16 2020-03-16 Weeding composition containing metazosulfuron and pyriftalid and application thereof Pending CN111296470A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009013127A (en) * 2007-07-06 2009-01-22 Nissan Chem Ind Ltd Herbicide composition
JP2012171928A (en) * 2011-02-22 2012-09-10 Sumitomo Chemical Co Ltd Herbicidal composition and method for killing weed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009013127A (en) * 2007-07-06 2009-01-22 Nissan Chem Ind Ltd Herbicide composition
JP2012171928A (en) * 2011-02-22 2012-09-10 Sumitomo Chemical Co Ltd Herbicidal composition and method for killing weed

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王巍等主编: "《北方农药新品种实用手册》", 30 April 2019, 辽宁科学技术出版社 *
筱禾 编译: "新颖除草剂嗪吡嘧磺隆(metazosulfuron)", 《世界农药》 *

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Application publication date: 20200619