CN107736359A - Herbicidal composition for rice field - Google Patents

Herbicidal composition for rice field Download PDF

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Publication number
CN107736359A
CN107736359A CN201710804000.0A CN201710804000A CN107736359A CN 107736359 A CN107736359 A CN 107736359A CN 201710804000 A CN201710804000 A CN 201710804000A CN 107736359 A CN107736359 A CN 107736359A
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CN
China
Prior art keywords
rice
butyl
cyhalofop
metamifop
pyraclonil
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Withdrawn
Application number
CN201710804000.0A
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Chinese (zh)
Inventor
徐雅飞
陈丰喜
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ZHEJIANG TIANFENG BIOLOGICAL SCIENCE Co Ltd
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ZHEJIANG TIANFENG BIOLOGICAL SCIENCE Co Ltd
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Priority to CN201710804000.0A priority Critical patent/CN107736359A/en
Publication of CN107736359A publication Critical patent/CN107736359A/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
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A01N39/04—Aryloxy-acetic acids; Derivatives 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
    • A01N43/72—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
    • A01N43/74—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 1,3
    • A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
    • 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
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

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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 composition for rice field, comprising three kinds of metamifop, cyhalofop-butyl and pyraclonil active ingredients, wherein, three kinds of active ingredient mass ratioes are 1 ~ 30：1~30：1 ~ 50, the mass percent summation of three kinds of active ingredients in the composition is 1 ~ 80%.Herbicidal combinations of the present invention, herbicide controlling spectrum can be effectively expanded, Herba Eragrostidis ferrugineae synergistic effect of particularly being cracked rice to the malignant weed for preventing and treating direct seading rice Tanaka is obvious.Herbicidal combinations of the present invention are applied to prevent and kill off the most of grass family of rice terrace and part broadleaved herb, and safety is showed to rice.

Description

Herbicidal composition for rice field
Technical field
The invention belongs to technical field of pesticide, more particularly, to a kind of Herbicidal composition for rice field.
Background technology
Metamifop (Metamifop), chemical name (2R) -2- [4- [(the chloro- 2- isoxazolyl benzenesulfonamides bases of 6-)] phenoxy group]-N- (2- fluorobenzene)-N- methyl propanamides, the aryloxyphenoxypropanoates class herbicide developed by Chemical Engineering Technology research institute of South Korea, belong to ACC Enzyme inhibitor, the synthesis of vegetable fatty acid can be suppressed.After medication in several days sensitive varieties occur blade face move back it is green, suppress growth.Can The most of annual gramineous weeds of rice terrace effectively are prevented and kill off, such as barnyard grass, moleplant seed, lady's-grass and eleusine indica, to rice safety.
Cyhalofop-butyl (Cyhalofop-butyl), chemical name (R) -2- (4- (4- cyano group -2- fluorophenoxies) phenoxy group) third Acid butyl ester, belong to aryloxyphenoxypropionic class herbicide, developed by the Dow Chemical Company, the mechanism of action is acetyl-CoA carboxylase Inhibitor, stop aliphatic acid synthesis, the growth division of cell can not be normally carried out, and the structure containing fat such as membranous system is destroyed, finally Cause Plant death.It is highly safe to rice, it is efficient to moleplant seed, there is certain preventive effect to low age barnyard grass, but know wind to cracking rice Grass, that barnyard grass, blue or green barnyard grass, bald barnyard, eleusine indica and other effects are come in west is undesirable.
Pyraclonil (pyraclonil), the entitled 1- of chemistry (3- chloro- 4,5,6,7- tetrahydro-pyrazoles simultaneously [1,5-a] pyridine -2- Base) -5- [methyl (Propargyl) amino] pyrazoles -4- nitriles, there is the novel structure compound of Pyrazolopyridine ring.Polybenzobisoxazole grass Nitrile is proporphyrinogen oxidase inhibitor, is a kind of contact killing type herbicide, weeds root and the main absorption that leaf base is the agent Position, drug effect is played by first protoporphyrinogen oxidase accumulation in vegetative nerve, can effectively prevent and kill off a variety of weeds including barnyard grass, Annual Ju Mang cyperus irias section firefly Lin, needle spikesedge herb, read leaf weeds Chinese herbaceous peony shape Monochoria korsakowii, Procumbent Falsepimpernel and wild arrowhead for many years, The wide scope weeds such as water chestnut have very high activity.Wilting symptoms are presented in 3~7d after processing, weeds；Afterwards, find because drying up 10~14d is dead.Pyraclonil also has good effect to some weeds for having resistance to sulfonylurea herbicide.
Chemical herbicide is while preventing and kill off work to farmland weed and bringing Gospel, in the selection index system of these herbicides Under pressure, some drug resistance plant due to gene selects act on and caused drug-resistant organisms type start it is rapid rise sprawling, Rice terrace resistant weed or malignant weed problem gradually protrude.
Crack rice Herba Eragrostidis ferrugineae (Eragrostis japonica), also known as disorderly grass, be that grass family, the annual life of Eragrostis are miscellaneous Grass, stalk is upright or knee Qu Congsheng, high 30-100 centimetres, footpath 1.5-2.5 millimeters, tool 3-4 are saved.Leaf sheath is typically wrapped up in than internode length, pine Stem, it is hairless；The film quality of the tip of a leaf thousand, Glabrous.It is in recent years spreading trend in direct sowing rice field, and not yet finds out at this stage preferably Targetedly cauline leaf process method.
Inventor has found in surprise during rice terrace resistant biotypes weed control technology correlation problem of tackling key problems, oxazole acyl Synergistic is obvious under special ratios after three kinds of careless amine, cyhalofop-butyl and pyraclonil active ingredient compoundings, not only to rice It is preferable that the annual gramineaes and sweet wine intestines etc. such as barnyard grass that field generally occurs, lady's-grass, moleplant seed read leaf Weed-control effect, while to mesh The very difficult malignant weed-Herba Eragrostidis ferrugineae of cracking rice prevented and kill off of preceding direct seading rice Tanaka has good preventive effect, and right under dosage Rice is very safe.
The present invention is carried out to the Herbicidal composition for paddy fields containing metamifop, cyhalofop-butyl and pyraclonil using technology Further investigation, by lot of experiments, the present invention is completed, it can effectively solve current rice terrace and prevent and kill off that field is difficult to remove pernicious grass family The problems such as weeds dispenser dosage is big, access times are more, residues of pesticides are serious, Weed Resistance bion is serious.
Have not yet to see and be related to the relevant report containing metamifop, cyhalofop-butyl and pyraclonil complex weedicide.
The content of the invention
The present invention is for overcome the deficiencies in the prior art, there is provided a kind of poison more high and low to crop safety, low-residual, kills Grass spectrum is wide, can effectively delay the Herbicidal composition for rice field of herbicide resistance.
To achieve these goals, the present invention uses following technical scheme：A kind of Herbicidal composition for rice field, contains oxazole Three kinds of acyl grass amine, cyhalofop-butyl and pyraclonil active principles, the weight of the metamifop, cyhalofop-butyl and pyraclonil Than for 1~30: 1~30: 1~50.
Further, the weight of the metamifop, cyhalofop-butyl and pyraclonil accounts for the 1- of composition total weight 80%, surplus is agriculturally acceptable insecticides adjuvant, carrier etc..
The auxiliary agent includes emulsifying agent, dispersant, suspending agent, synergist, preservative and solvent.
The emulsifying agent is calcium dodecyl benzene sulfonate, styrylphenol polyoxyethylene ether, alkylaryl polyoxyethylene Polyethenoxy ether, castor oil polyoxyethylene ether, polyoxyethylene polyoxypropylene block copolymer, APES phosphate In one or more.
The dispersant be sodium lignin sulfonate, alkylnaphthalene sulfonate, alkylphenol-polyethenoxy formaldehyde condensation products sulfate, One or more in dispersing agent MF, phosphate.
The suspending agent is the one or more in organobentonite, xanthans, white carbon.
The synergist is poly- trisiloxanes, heterogeneous ten alcohol polyoxyethylene ether, isomerous tridecanol polyoxyethylene ether, butanedioic acid One or more in di-isooctyl sulfonate.
The preservative is one or both of sodium benzoate, Kathon CG.
The solvent is soybean oil, methyl oleate, methyl naphthalene higher aliphatic hydrocarbon ils, aromatic hydrocarbons S-150, S-200 solvents One or more in oil.
Herbicidal combinations of the present invention, can be by the pesticide producing mode of routine, and processing is prepared into oil-suspending agent, missible oil, hanged Emulsion, can the formulation that uses of various forms of suitable agricultural productions such as wet-milling.
Described Herbicidal combinations, its application are to prevent and kill off paddy field weed.
Further, described Herbicidal combinations, it is used to preventing and kill off direct seading rice field and cracked rice Herba Eragrostidis ferrugineae.
The frequency of use and usage amount of the Herbicidal composition for paddy fields of the present invention are as plant growth, weeds occur, weather becomes Change and have a small amount of change, the purpose effectively prevented and treated can be reached by using appropriate dosage, to rice safety.
In summary, the beneficial effects of the invention are as follows：Can keeping from ill grassy weed, cost is low, and can effectively reduce makes Dosage, times for spraying is reduced, broad weed-killing spectrum, can effectively delay herbicide resistance, herbicidal effect ideal.
Embodiment
In order that those skilled in the art are better understood from the essence of the present invention, come with reference to specific embodiment to this Invention is further described, but does not limit the invention to these embodiments.Those skilled in the art should recognize Know, present invention encompasses all alternatives, improvement project and the equivalents that may include in Claims scope. It is raw to survey embodiment
Below by way of greenhouse pot culture active determination test with reaction metamifop, cyhalofop-butyl and polybenzobisoxazole definitely The mixed synergistic effect to Herba Eragrostidis ferrugineae of cracking rice of oxalic acid dinitrile, between further comparative composition, and removing between composition and single dose Careless activity, to better illustrate Herbicidal combinations of the present invention.
It is raw to survey embodiment 1
Test name：Metamifop, cyhalofop-butyl and pyraclonil single dose and the experiment of mixed toxicity.
Test target：From Herba Eragrostidis ferrugineae of cracking rice for experiment target, Herba Eragrostidis ferrugineae seed collection of cracking rice is in Jinhua, Zhejiang.
Test medicine：96% metamifop TC, 95% cyhalofop-butyl TC and 97% pyraclonil TC.
Test medicine and preparation：A certain amount of active compound is weighed, mother liquor is made into from the dissolving of suitable organic solvent, by setting Dosage is handled with the distilled water diluting containing 0.1% Tween-80 into test dose.
Try material culture：The experiment special soil that experiment soil is collected for non-medication plot, from bore 21cm, deep 17cm plastics Flowerpot, soil is filled to 3/4 height, adds water after soil completely moistening, the Herba Eragrostidis ferrugineae seed uniform broadcasting of cracking rice that field is gathered. Hot-house culture is bred, and regular moisturizing is stand-by for trying during target length to 3~4 leaf phase to keep 100% soil moisture, is protected per basin Card has 15-20 strain.
Test method：Using greenhouse pot culture method, for examination weeds spraying treatment under each dosage.Often processing sets 4 repetitions, separately sets Blank control.Handle and cultivated in rearmounted greenhouse, regular moisturizing, keep soil moisture.
Investigation method：Routine observation plant reaction symptom after processing, and 21d aerial part weeds fresh weights after medicine are determined, count Fresh weight inhibition is calculated, medicament is evaluated to target virulence with fresh weight inhibition.
Fresh weight inhibition (%)=(control fresh weight-processing fresh weight)/control fresh weight * 100.
Synergy evaluation method：Using DPS software analysis, virulence equation, ED are calculated50It is worth (gai/hm2) and poison is altogether Number CTC, the results are shown in Table 1 and table 2.
Table 1：Metamifop, cyhalofop-butyl and pyraclonil single dose and mixed to Herba Eragrostidis ferrugineae virulence test result of cracking rice
Wherein co-toxicity coefficient ＞ 120 represents synergistic effect, and CTC is expressed as antagonism less than 80, CTC between 80-120 it Between be expressed as summation action.CTC numerical value is bigger, and synergistic effect is more notable.According to the result of the test of table 1, metamifop, cyanogen fluorine grass 12 groups of compounded combinations of ester and pyraclonil have obvious inhibitory action to Herba Eragrostidis ferrugineae of cracking rice, and synergistic effect is notable.
Example of formulations
Active ingredient uses 96% metamifop TC, 95% cyhalofop-butyl TC and 97% polybenzobisoxazole in embodiments below Oxalic acid dinitrile TC, each component percentage composition are weight percent content.
Embodiment 1：37% metamifop cyhalofop-butyl pyraclonils (10: 15: 12) oil-suspending agent
Metamifop 10%, cyhalofop-butyl 15%, pyraclonil 12%, 10% emulsifying agent bamboo this grease YUS-110, 5% bamboo this grease dispersant EP60P, 1.5% organobentonite 838F, gas-phase silica 0.2%, No. 200 solvent naphthas 15%, Methyl oleate surplus, above component is mixed with cutter high speed shear and is sanded by sand mill, 37% oxazole is made Acyl grass amine cyhalofop-butyl pyraclonils (10: 15: 12) oil-suspending agent.
Embodiment 2：31% metamifop cyhalofop-butyl pyraclonils (8: 15: 8) missible oil
Metamifop 8%, cyhalofop-butyl 15%, pyraclonil 8%, emulsifying agent calcium dodecyl benzene sulfonate 4%, emulsification Agent APES oxypropylene block polyethers 3.2%, wetting agent AEO 15%, N- first class pyrroles Alkanone 3%, dimethyl sulfoxide (DMSO) 4%, C9-10 heavy aromatic solvent oil surpluses.Each active component, various solvents etc. are pressed into formula rate Fully dissolving, adds each auxiliary component, stirring produces 31% metamifop cyhalofop-butyl pyraclonils (8: 15: 8) Missible oil.
Embodiment 3：16% metamifop cyhalofop-butyl pyraclonils (5: 5: 6) suspension emulsion
Metamifop 5%, cyhalofop-butyl 5%, pyraclonil 6%, dispersant macromolecular polyoxyethylene polyoxypropylene are embedding Section polyethers 3%, emulsifying agent castor oil polyoxyethylene ether 1.5%, emulsifying agent AEO 5%, dispersant list pectination Carboxylate polymer 0.5%, dispersant alkyl phenol polyether phosphoric acid ester %2.5%, thickener aluminium-magnesium silicate 0.2%, antifreezing agent Ethylene glycol 4%, thickener xanthans 0.1%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.1%, organic silicon defoamer 0.3%, C9-10 heavy aromatic solvents Oil 24%, water surplus.Above component is mixed with cutter high speed shear and is sanded to obtain mother liquor, mother liquor by sand mill Oil phase is added during high speed shear to continue to shear 30 minutes i.e. available 16% metamifop cyhalofop-butyl pyraclonils (5: 5: 6) suspension emulsion.
Embodiment 4：42% metamifop cyhalofop-butyl pyraclonils (12: 20: 10) can wet-milling
Metamifop 12%, cyhalofop-butyl 20%, pyraclonil 10%, wetting agent lauryl sodium sulfate 1.5%, point Powder alkylnaphthalene sulfonate 8%, the wooden calculation sulfonate 2% of dispersant, white carbon 6%, kaolin are mended to 100.By above component Carried out after well mixed air-flow crushing obtain 42% metamifop cyhalofop-butyl pyraclonils (12: 20: 10) can wet-milling.
Application Example
Metamifop cyhalofop-butyl pyraclonil complex herbicidal compositions prevent and kill off the paddy field weed test of pesticide effectiveness
(1) embodiment 1：37% metamifop cyhalofop-butyl pyraclonils (10: 15: 12) oil-suspending agent
(2) embodiment 2：31% metamifop cyhalofop-butyl pyraclonils (8: 15: 8) missible oil
(3) embodiment 3：16% metamifop cyhalofop-butyl pyraclonils (5: 5: 6) suspension emulsion
(4) embodiment 4：42% metamifop cyhalofop-butyl pyraclonils (12: 20: 10) can wet-milling
(5) comparison medicament 1：10% metamifop missible oil
(6) comparison medicament 2：10% cyhalofop-butyl missible oil
(7) comparison medicament 3：2% pyraclonil granule
Experimental field condition：Experimental field it is located at Long You counties of Quzhou City of Zhejiang Province, rice varieties are to gush excellent conventional variety, live water Or so leaf phase of rice 4, it is experimental field sand soil, water conservation is poor, and field main weeds have barnyard grass, moleplant seed, lady's-grass and Herba Eragrostidis ferrugineae of cracking rice.
Test method：Each test process sets 4 repetitions, experimental plot 20m2, random district's groups arrangement.Set and manually remove simultaneously Grass and clear water control treatment.Each medicament is watered 30 kilograms for every mu by test dose, and uniform cauline leaf spraying treatment is in each cell, control Medicament-pyraclonil granule directly spreads fertilizer over the fields.7 days, 15 days and 21 days rice and weeds victimization state after experimental investigation processing, are adjusted 21 days weeds fresh weights after dispenser are looked into, calculate fresh weight preventive effect, result of the test is shown in Table 2.
Table 2：Fresh weight preventive effect of 21 days each test medicines to weeds in field after dispenser
By the field control effectiveness test result of table 2, it is found that 1~embodiment of embodiment 4 presses above-mentioned recommended dose dispenser, to rice The preventive effect of the weeds such as Herba Eragrostidis ferrugineae of cracking rice, barnyard grass, lady's-grass and the moleplant seed of Tanaka is all remarkably higher than the oxazole acyl of comparison medicament 10% grass Amine missible oil, 10% cyhalofop-butyl missible oil and 2% pyraclonil granule.Particularly it is protruded Herba Eragrostidis ferrugineae preventive effect of cracking rice, performance Obvious synergistic effect, field integrated control effect highly significant.Experimental plot Plant Height of Rice, tiller are unaffected, performance safety.
Comprehensive indoor biometricses experiment and field control effectiveness test result, it was demonstrated that the present invention contains metamifop, cyhalofop-butyl With the Herbicidal combinations of pyraclonil, to rice safety in certain dispenser dosage range, and herbicidal performance is excellent.Originally simultaneously Invention Herbicidal combinations, it is easy to use, it is worth in agriculturally popularization and application.
Although above the present invention is described in detail with a general description of the specific embodiments, at this On the basis of invention, further modification or improvement can be made to it.This will be apparent to those skilled in the art.Cause This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (6)

  1. A kind of 1. Herbicidal composition for rice field, it is characterised in that：Have containing three kinds of metamifop, cyhalofop-butyl and pyraclonil Imitate composition.
  2. 2. Herbicidal composition for rice field according to claim 1, it is characterised in that：The active ingredient metamifop, Cyhalofop-butyl and pyraclonil mass ratio are 1 ~ 30：1~30：1~50.
  3. 3. Herbicidal composition for rice field according to claim 1, it is characterised in that：Three kinds of active ingredients are in the composition Mass percent summation is 1 ~ 80%.
  4. 4. Herbicidal composition for rice field according to claim 1, it is characterised in that：Oil-suspending agent, breast can be processed into Oil, suspension emulsion, can the formulation such as wet-milling.
  5. 5. the application of the Herbicidal composition for rice field according to any one of claim 1-4, it is characterised in that：Suitable for anti- Except paddy field weed.
  6. 6. the application of Herbicidal composition for rice field according to claim 5, it is characterised in that：The paddy field weed is broken Rice Herba Eragrostidis ferrugineae.
CN201710804000.0A 2017-09-08 2017-09-08 Herbicidal composition for rice field Withdrawn CN107736359A (en)

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Application Number Priority Date Filing Date Title
CN201710804000.0A CN107736359A (en) 2017-09-08 2017-09-08 Herbicidal composition for rice field

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Country Status (1)

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