Technical field
The present invention relates to a kind of improvement property herbicidal composition that enlarges herbicidal spectrum that has, a kind of specifically composition weed killer herbicide that contains the efficient haloxyfop-methyl spirit and be used to prevent and treat broad leaf crop field grass family and broad leaved weed.
Background technology
The efficient haloxyfop-methyl spirit; Trade name is a haloxyfop-r-methyl; English name: haloxyfop-R-methyl; Be that cauline leaf is handled weed killer herbicide behind the fragrant phenoxy propionic acid class seedling; Can be absorbed by the leaf of grassy weed very soon after cauline leaf is handled, conduct to whole plant, accumulate in the plant meristematic tissue; Suppress acetyl-CoA carboxylase in the plant corpus, cause the fatty acid biosynthesis block and kill weeds.The medicament that sprinkling falls into soil is prone to absorbed by root, also can work the grass effect of killing.To from emerging to tillering, the annual and perennial grassy weed at the initial stage of earing has good preventive effect; Be used for broad leaf crop fields such as soybean, cotton, peanut, rape and wild cabbage and prevent and kill off grassy weeds such as amur foxtail, barnyard grass grass, lady's-grass, green foxtail, eleusine indica, wild oat; Invalid to broadleaved herb and nutgrass flatsedge, to the broad leaf crop high safety.
Diphenyl ether herbicide, nineteen thirty Raiford etc. has synthesized nitrofen, after nineteen sixty Rhom and Hass (Rohm and Haas) carries out synthetic again and finds its activity of weeding, has started diphenyl ether herbicide.Diphenyl ether herbicide mainly absorbs through plant embryos bud scale, mesocotyl and gets in the body.Action target is a proporphyrinogen oxidase, suppresses chlorophyllous synthetic, destroys the cell membrane of sensitive plant.To close degree relevant with absorbing conduction, accretion rate and the yoke in plant corpus for the selectivity of this type of weed killer herbicide.
Sulfonylurea herbicide; The exploitation of sulfonylurea herbicide kind starts from the latter stage seventies; It is a kind of acetolactate synthestase (ALS) inhibitor; Promptly through suppressing the ALS in the plant corpus; Hinder the biosynthesis of side chain amino acid such as valine, leucine, isoleucine; Cell division is suppressed, and the weeds normal growth is damaged and death.Its characteristics mainly comprise the following aspects: 1. biologically active.Sulfonyl urea compound has unprecedented high activity, and from then on the per hectare consumption has broken the dosage boundary of traditional category in gram, makes the development of weed killer herbicide step into the super-high-efficient epoch; 2. toxicity.Sulfonylurea herbicide acts on the ALS in the plant corpus, and does not have second action site again, and it is very low to people and mammiferous toxicity; 3. selectivity.Sulfonylurea herbicide has good selectivity to many crops, it is generally acknowledged, its selectivity is to be caused by Different Crop and the weeds difference to this compounds metabolism deactivation, and irrelevant with the difference and the ALS sensitivity difference of absorption and conductive quantity; 4. environmental behaviour.Sulfonylurea herbicide both can have been done the leaf surface treatment agent also can make processing soil treatment agent, because of its steam forces down, get in the atmosphere amount seldom, mainly by plant absorbing with get into soil.Its residual quantity is very little, and except that a small amount of leaching got into underground water, major part can be degraded through chemical hydrolysis and microbial decomposition; 5. residual poisoning.The sulfonylurea herbicide selectivity is strong, and is very big to the sensitivity differences of Different Crop.This type of weed killer herbicide is rapider in degraded in soil, and in the non-target organism body, does not carry out biological accumulation, therefore environmentally safely with its ultralow consumption in pesticide field, takes the course of its own.
Bentazone, benzothiadiazine ketone weed killer herbicide, bentazone can be metabolised to glycoconjugates and detoxify in making object, to crop safety.8-16 week bentazone can be by microbial decomposition in soil after the dispenser.Be used to prevent and kill off sedge weed and broad leaved weed, effective to perennial weeds such as field thistle, corn sow thistle etc., invalid to grassy weed.Be applicable to soybean, corn, peanut, wheat, Kidney bean, pea, onion, sugarcane etc.
Summary of the invention
The objective of the invention is to work out the prescription with the synergy of efficient haloxyfop-methyl spirit mixture of herbicides, enlarge and kill the grass spectrum, improve preventive effect.
The technical scheme that the present invention takes is:
A kind of herbicidal composition that contains the efficient haloxyfop-methyl spirit, it comprises the following compound as active component:
1. compd A: the efficient haloxyfop-methyl spirit,
2. the synergistic activity composition B that is mixed of weed killer herbicide is selected from the following all kinds of weed killer herbicide one or more: diphenyl ether herbicide, sulfonylurea herbicide, or benzothiadiazine ketone weed killer herbicide at least.
Wherein, the efficient haloxyfop-methyl spirit with the weight proportion of synergistic activity composition is: 1&#;30%: 0.5&#;50%.
Said diphenyl ether herbicide, its principal item has: fluoroglycofen-ethyl, acifluorfen, lactofen, Oxyfluorfen, aclonifen, ethoxyfenethyl ethyl ester, fluorodifen, or a kind of in the AKH fat.
Said sulfonylurea herbicide is selected chlorimuronethyl for use, or thifensulfuron methyl.
Said benzothiadiazine ketone weed killer herbicide is selected bentazone for use, weed eradication quinoline and flumioxazin, or a kind of in the clomazone.
In the composition of the present invention, the ratio of the active component B mixture that compd A and weed killer herbicide synergy are mixed can be according to the kind of said composition, spraying time, application process and in a more wide in range scope, is fluctuateed.Generally speaking, compd A and compd B weight portion are listed as this component proportioning by following component and proportioning but be not limited to:
Compd A 1&#;30%
Compd B 0.5&#;50%.
Above-claimed cpd is aided with various auxiliary materials, auxiliary agent, can be hybridly prepared into the weed killer herbicide of different dosage form.The formulation that can be processed into by this area mainly contains: but granule, aqueous emulsion, microemulsion, soluble liquid, suspending agent dispersed oil suspending agent, wetting powder, soluble powder or water dispersible granules etc.
If with the aqueous emulsion is that example details implementation method of the present invention, can form with height adding examples of suitable emulsifiers, solvent complex in said herbicidal composition.Wherein said emulsifier can be a kind of or any several combination in alkylbenzenesulfonate, alkyl phenol (or fatty alcohol) polyoxyethylene poly-oxygen propylene aether and sulphate (or phosphoric acid fat) thereof, alkylphenol-formaldehyde resin polyoxy ethyl ether, phenyl phenol polyoxy ether, phenethyl phenol polyoxyethyl propyl polyoxy ethyl ether etc. and the emulsifier known in those skilled in the art; Described solvent is a kind of or any several combination in toluene, xylol, methyl alcohol, acetone, dimethyl formamide, cyclohexanone, methyl oleate, water and the solvent known in those skilled in the art; The method of formulated in combination is: with solvent efficient haloxyfop-methyl spirit, acifluorfen are dissolved fully, add suitable emulsifier then, stir, make the system homogeneous transparent, treat each item index detect qualified after, promptly obtain Herbicidal combinations missible oil product of the present invention.
Usefulness of the present invention: (1) has enlarged the herbicidal spectrum of efficient haloxyfop-methyl spirit and synergistic activity composition; Improved the effect of weed killer herbicide; The efficient haloxyfop-methyl spirit belongs to the weed killer herbicide of aryloxy group phenoxy propionic acid class; Can prevent and treat multiple grassy weed effectively; Having high selectivity, is broad leaf crop field cauline leaf inorganic agent behind the seedling efficiently; Absorbed by cauline leaf, tender tissue is had very strong inhibitory action; And acifluorfen belongs to diphenyl ether herbicide; Have selection, tagging property; Play a role by photosystem; Can prevent and kill off the multiple broad leaved weed and the sedge weed in broad leaf crop field; Grassy weed also there is certain effect; Both are composite, can improve preventive effect greatly, enlarge to kill the grass spectrum.(2) a large amount of evidences, these two kinds of compositions are composite to have and wealthy two removing, efficient, the characteristics of wide spectrum.
This herbicidal composition can be widely used in soybean, the peanut field is used to prevent and kill off barnyard grass grass, green foxtail, sees grassy weeds such as selling ma, Ma Tang, annual bluegrass, moleplant seed; Difficult anti-broad leaved weed such as kitchen garden, black nightshade, Siberian cocklebur, field bindweed, multitude, eleusine indica and sedge weed; Has broad weed-killing spectrum, to the crop safety characteristics of high efficiency.
Embodiment
The present invention describes with following instance, but does not limit the scope of the invention.(wherein this case study on implementation is corresponding with the compound method in the biological case study on implementation)
FORMULATION EXAMPLE 1:11% efficient haloxyfop-methyl spirit acifluorfen (1: 10) granule
With efficient haloxyfop-methyl spirit 10 grams; Acifluorfen 100 grams; Alkylbenzenesulfonate 25 grams; Alkyl phenol polyoxy ethyl polyoxyethyl propyl ether 35 grams; Xylol 250 grams stir, and adopt the mode of high-pressure fog evenly to be sprayed onto on the load weighted 580 gram zeolite granulars then; Fully after the stirring and adsorbing, get final product 11% efficient haloxyfop-methyl spirit acifluorfen granule.
FORMULATION EXAMPLE 2:20% efficient haloxyfop-methyl spirit fluoroglycofen-ethyl (2: 18) aqueous emulsion
Efficient haloxyfop-methyl spirit 20 grams, fluoroglycofen-ethyl 180 grams are dissolved in the 250 gram toluene, add alkylbenzenesulfonate 30 grams, alkylbenzene APEO 30 grams start clipper, and the limit sheared edge adds deionized water 490 grams.High speed shear got final product in 30 minutes 20% efficient haloxyfop-methyl spirit fluoroglycofen-ethyl (2: 18) aqueous emulsion.
FORMULATION EXAMPLE 3:24% efficient haloxyfop-methyl spirit lactofen (3: 21) soluble liquid
Efficient haloxyfop-methyl spirit 30 grams, lactofen 210 grams are dissolved in the 250 gram dimethyl formamides, add alkylphenol-formaldehyde resin polyoxy ethyl ether 30 grams, alkylbenzene APEO 30 grams, cyclohexanone 450 grams.Stir, get final product 24% efficient haloxyfop-methyl spirit lactofen (3: 21) soluble liquid.
FORMULATION EXAMPLE 4:42% efficient haloxyfop-methyl spirit Oxyfluorfen (12: 30) but the dispersed oil suspending agent
425 gram methyl oleates in the suction container; With 800 gram alkylphenol-polyethenoxy polyethenoxy ethers; 50 gram alkylbenzenesulfonates add in the container; The limit stirring is clever with 120 gram efficient haloxyfop-methyls then, 300 gram chlorimuronethyls, 25 restrain xylol, input is sheared in the jar in order, shears to make mixing of materials even in 30 minutes.Open cycle water, with a certain amount of flow, below temperature control 40 degree, fineness is crossed 325 mesh sieves with the material ball milling, promptly gets 42% efficient haloxyfop-methyl spirit Oxyfluorfen (12: 30) but the dispersed oil suspending agent.
FORMULATION EXAMPLE 5:80% efficient haloxyfop-methyl spirit aclonifen (30: 50) wetting powder
With efficient haloxyfop-methyl spirit 300 grams, aclonifen 500 grams; Alkylsulfonate 20 grams; Alkyl naphthalene formaldehyde condensate sulfonates 30 grams; Polycarboxylate 50 grams; White carbon 30 grams, kaolin 200 grams stir; Employing comminution by gas stream processing, get final product 70% efficient haloxyfop-methyl spirit aclonifen (20: 50) wetting powder.
FORMULATION EXAMPLE 6:5.5% efficient haloxyfop-methyl spirit ethoxyfenethyl ethyl ester (5: 0.5) microemulsion
With efficient haloxyfop-methyl spirit 50 grams, ethoxyfenethyl ethyl ester 5 grams, methyl alcohol 90 grams, alkylbenzenesulfonate 30 grams, alkylphenol polyoxyethylene 75 grams, phenyl phenol polyoxy ethyl ether 30 grams mix, and add ethylene glycol 20 grams while stirring, deionized water 685 grams.Stir got final product in 30 minutes 5.5% efficient haloxyfop-methyl spirit ethoxyfenethyl ethyl ester (5: 0.5) microemulsion.
FORMULATION EXAMPLE 7:10.5% efficient haloxyfop-methyl spirit fluorodifen (10: 0.5) microemulsion
With efficient haloxyfop-methyl spirit 100 grams, fluorodifen 5 grams; Methyl alcohol 90 grams; Alkylbenzenesulfonate 30 grams; Alkylphenol polyoxyethylene 120 grams; Phenyl phenol polyoxy ethyl ether 30 grams; Phenethyl fluosite polyoxy ethyl ether 20 grams mix, and add ethylene glycol 20 grams while stirring, deionized water 585 grams.Stir got final product in 30 minutes 5.5% efficient haloxyfop-methyl spirit ethoxyfenethyl ethyl ester (5: 0.5) microemulsion.
FORMULATION EXAMPLE 8:12% efficient haloxyfop-methyl spirit AKH fat (10: 2) soluble powder
With efficient haloxyfop-methyl spirit 100 grams, AKH fat 20 grams; Cyclohexanone 50 grams; Alkylbenzenesulfonate 30 grams; Methyl alcohol 100 grams, white carbon 110 grams, phenethyl fluosite polyoxy ethyl ether 40 grams; Ammonium sulfate 550 grams; Stir, adopt mechanical crushing method processing, get final product 12% efficient haloxyfop-methyl spirit AKH fat (10: 2) soluble powder.
FORMULATION EXAMPLE 9:12% efficient haloxyfop-methyl spirit bentazone (1: 11) microemulsion
With efficient haloxyfop-methyl spirit 10 grams, bentazone 110 grams, methyl alcohol 70 grams, alkylbenzenesulfonate 20 grams, phenethyl fluosite polyoxy ethyl ether 170 grams mix, and add ethylene glycol 20 grams while stirring, deionized water 600 grams.Stir got final product in 30 minutes 12% efficient haloxyfop-methyl spirit bentazone (1: 11) microemulsion.
FORMULATION EXAMPLE 10:20% efficient haloxyfop-methyl spirit thifensulfuron methyl (2: 18) microemulsion
With efficient haloxyfop-methyl spirit 20 grams, thifensulfuron methyl 180 grams, methyl alcohol 70 grams, alkylbenzenesulfonate 30 grams, alkylphenol polyoxyethylene 130 grams mix, and add ethylene glycol 30 grams while stirring, deionized water 540 grams.Stir got final product in 30 minutes 20% efficient haloxyfop-methyl spirit thifensulfuron methyl (2: 18) microemulsion.
FORMULATION EXAMPLE 11:26% efficient haloxyfop-methyl spirit flumioxazin (2: 24) suspending agent
680 gram deionized waters in the suction container; 30 gram alkylbenzenesulfonates, 30 gram alkylbenzene APEOs are added in the container; The limit stirring restrains efficient haloxyfop-methyls spirit, 240 gram bentazones with 20 then, drops in order in the shearing jar, shears to make mixing of materials even in 30 minutes.Open cycle water, with a certain amount of flow, below temperature control 40 degree, fineness is crossed 325 mesh sieves with the material ball milling, promptly gets 26% efficient haloxyfop-methyl spirit flumioxazin (2: 24) suspending agent.
FORMULATION EXAMPLE 12:40% efficient haloxyfop-methyl spirit weed eradication quinoline (10: 30) soluble liquid
Efficient haloxyfop-methyl spirit 100 grams, weed eradication quinoline 300 grams are dissolved in the 490 gram dimethyl formamides, add alkylphenol-formaldehyde resin polyoxy ethyl ether 30 grams, alkylbenzene APEO 80 grams.Stir, get final product 40% efficient haloxyfop-methyl spirit weed eradication quinoline (10: 30) soluble liquid.
FORMULATION EXAMPLE 13:13% efficient haloxyfop-methyl spirit: chlorimuronethyl (1: 12) water dispersible granules
With efficient haloxyfop-methyl spirit 10 grams, chlorimuronethyl 120 grams; Alkylbenzenesulfonate 50 grams, alkylphenol polyoxyethylene 60 grams, white carbon 80 grams; Ammonium sulfate 680 grams; Mix laggard comminution by gas stream, in mixer, spray into and mediate about 130 grams of agent deionized water; The adjustment extrusion equipment; Carry out extruder grain, it is qualified under 50&#;80 &#; of conditions, to dry to moisture, gets final product to such an extent that 13% efficient haloxyfop-methyl is clever: chlorimuronethyl (1: 12) water dispersible granules.
FORMULATION EXAMPLE 14:18% efficient haloxyfop-methyl spirit: clomazone (2: 16) microemulsion
With efficient haloxyfop-methyl spirit 20 grams, clomazone 160 grams, methyl alcohol 70 grams, alkylbenzenesulfonate 30 grams, phenyl phenol polyoxy ethyl ether 130 grams mix, and add ethylene glycol 30 grams while stirring, deionized water 560 grams.Stir and got final product to such an extent that 18% efficient haloxyfop-methyl is clever: 2: 16 microemulsions of clomazone in 30 minutes.
Biological case study on implementation
Confession is studied thing in the greenhouse, be cultured to the back use of emerging.Use standard soil is as somatomedin, wait weeds to emerge after, the crop 3-5 leaf phase, weeds 2-4 leaf phase dispenser is applied to crop and weeds with agent of weed killer herbicide list and mixture.
108 grams per liter efficient haloxyfop-methyl missible oils (Shenyang Kechuang chemicals Co., Ltd is commercial)
Acifluorfen, fluoroglycofen-ethyl, lactofen, Oxyfluorfen, aclonifen, ethoxyfenethyl ethyl ester, fluorodifen, AKH fat, bentazone, thifensulfuron methyl, flumioxazin, weed eradication quinoline, chlorimuronethyl, the agent of clomazone list and efficient haloxyfop-methyl spirit are composite with it corresponding
Preparation 1:11% efficient haloxyfop-methyl spirit acifluorfen (1: 10) granule
Preparation 2:20% efficient haloxyfop-methyl spirit fluoroglycofen-ethyl (2: 18) aqueous emulsion
Preparation 3:24% efficient haloxyfop-methyl spirit lactofen (3: 21) soluble liquid
Preparation 4:42% efficient haloxyfop-methyl spirit Oxyfluorfen (12: 30) but the dispersed oil suspending agent
Preparation 5:80% efficient haloxyfop-methyl spirit aclonifen (30: 50) wetting powder
Preparation 6:5.5% efficient haloxyfop-methyl spirit ethoxyfenethyl ethyl ester (5: 0.5) microemulsion
Preparation 7:10.5% efficient haloxyfop-methyl spirit fluorodifen (10: 0.5) microemulsion
huimeng contains other products and information you need, so please check it out.
Preparation 8:12% efficient haloxyfop-methyl spirit AKH fat (10: 2) soluble powder
Preparation 9:12% efficient haloxyfop-methyl spirit bentazone (1: 11) microemulsion
Preparation 10:20% efficient haloxyfop-methyl spirit thifensulfuron methyl (2: 18) microemulsion
Preparation 11:26% efficient haloxyfop-methyl spirit flumioxazin (2: 24) suspending agent
Preparation 12:40% efficient haloxyfop-methyl spirit weed eradication quinoline (10: 30) soluble liquid
Preparation 13:13% efficient haloxyfop-methyl spirit: chlorimuronethyl (1: 12) water dispersible granules
Preparation 14:18% efficient haloxyfop-methyl spirit: clomazone (2: 16) microemulsion
(the same FORMULATION EXAMPLE of the method for preparation and content) is that the configuration of golden field company is used in order to the test of pesticide effectiveness.
Table 1 supplies the control efficiency of reagent agent to weeds
Can find out that by table 1 two kinds of composite effects of composition improve a lot explanation than the effect that single agent prevents and treats; The efficient haloxyfop-methyl spirit is mixed with above medicament can improve preventive effect, can reach the wealthy two effects of removing of standing grain, and to soybean safety; Lasting period is long, and the value of applying is arranged.
Above the present invention has been done detailed description with general explanation and specific embodiments; But on basis of the present invention, can to some modifications of do and improvement, therefore; These modifications and the improvement on the basis of not departing from spirit of the present invention, made all belong to the scope that the present invention protects.
HALOXYFOP-R-METHYL
&#;&#;&#;&#;&#;&#;&#;
Introduction: Haloxyfop-R-methyl is a post-emergence herbicide used to control annual and perennial grass weeds in orchards, soybeans, sugarbeet, oilseed rape, sunflower, cotton, bananas, non-crop situations and forestry.
Common name: Haloxyfop-R-methyl
Another name: Haloxyfop-P-methyl, Gallant Super, Eloge, Zellek Super , etc.
Chemical name: methyl (R)-2-{4-[3-chloro-5-(trifluoromethyl)-2-pyridyloxy]phenoxy}propionate
Empirical formula: C16H13ClF3NO4
Structural formula:
Mol. Weight: 375.7 g/mol
CAS No.: -32-0
Specifications
Leading Haloxyfop-R-methyl supplier
Haloxyfop-R-methyl 108 g/LEC
Haloxyfop-R-methyl 240 g/LEC
Haloxyfop-R-methyl 95% TC
Packing:
BULK PACKING
Solid: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.
Liquid: 200L/Drum, 20L/Drum, 10L/Drum ect.
SMALL PACKING
Solid: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc.
Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.
Customerized packing label
Haloxyfop-R-methyl FAO standard
Professional registration
HAZARDS IDENTIFICATION
Hazard statement(s)
H302: Harmful if swallowed.
H400: Very toxic to aquatic life.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary statement(s)
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P301+P312: IF SWALLOWED: call a POISON CENTER/doctor/... IF you feel unwell.
P330: Rinse mouth.
P391 Collect spillage.
P501: Dispose of contents/container to ...
Supplemental Hazard Statements: none
MAMMALIAN TOXICOLOGY
Acute toxicity: 1) Acute oral LD50 for rat: &#;300 a.i.mg/kg. 2) Acute dermal LD50 for rat: > a.i.mg/kg. 3) Inhalation LC50 (4 h) for rat: no data available. 4) Non-irritating to skin (rabbits). 5) Slightly-irritating to eyes (rabbits). 6) skin sensitization: no data available.
NOEL: (2 y) for rats is 0.065 mg/kg b.w. daily; no increase in hepatotoxicity.
ADI: 0. mg/kg b.w./day[Rat, SF=100]
Classification:
Toxicity class WHO (a.i.): II (Moderately hazardous)
EC Risk Classification: Xn - Harmful: R22; N - Dangerous for the environment: R50, R53
ECOTOXICOLOGY
Effect on birds: moderate toxicity to birds, acute LD50 is a.i.mg/kg. Effect on fish: high toxicity to fish, acute 96 hour LC50 for Bluegill sunfish is 0.088 a.i.mg/L. Effect on aquatic invertebrates: moderate toxicity to aquatic invertebrates, acute 48 hour EC50 for Daphnia magna is 12.3 a.i.mg/L. Effect on algae: moderate toxicity to algae, acute 72 hour EC50 for Navicula pelliculosa is 1.72 a.i.mg/L. Effect on honeybees: low toxicity to honeybees, contact acute 48 hour LD50 is >100 a.i.μg/bee, oral acute 48 hour LD50 is >100 a.i.μg/bee. Effect on earthworms: moderate toxicity to earthworms, acute 14 day LC50 for Eisenia foetida is >672 a.i.mg/kg.
ENVIRONMENTAL FATE
Animals: In mammals, rapidly converted to the parent acid and eliminated.
Plants: Hydrolysed to haloxyfop, terminal residue haloxyfop, or conjugates. Soil/Environment DT50 <24 h, forming the parent acid, which is then microbially degraded. Haloxyfop acid degradation approximates to first order kinetics and involves degradation to the pyridinol and other minor metabolites. DT50 is 9 to 20.5 d, average 14 d (various soil types).
Usage: The methyl ester reported by Bayer S.A. (M. C. Botte et al., Proc. 15th Columa Conf., , 1, 397) and introduced by DowElanco (now Dow AgroSciences). Manufacturers: Dow AgroSciences. Fatty acid synthesis inhibitor, by inhibition of acetyl CoA carboxylase (ACCase).
Application: Haloxyfop-R-methyl is a selective herbicide, absorbed by the foliage and roots, and hydrolysed to haloxyfop-R, which is translocated to meristematic tissues, and inhibits their growth. Haloxyfop-R-methyl is used post-emergence for control of annual and perennial grasses in sugar beet, fodder beet, oilseed rape, potatoes, leaf vegetables, onions, flax, sunflowers, soya beans, vines, strawberries, and other crops. Applied at 52-104 g a.e./ha.