CN106135235B - A kind of Herbicidal combinations - Google Patents

Abstract

The present invention relates to a kind of Herbicidal combinations, in particular to a kind of Herbicidal combinations for Control Weeds in Maize Field.The present invention provides a kind of Herbicidal combinations, active constituent topramezone, Brominal and bentazone containing there are three types of, and wherein the ratio range of topramezone, Brominal and bentazone by weight percentage is 1~10:1~100:1~100.The advantages of three kinds of component mechanisms are different in the present invention, and the medicament after compounding combines three kinds of single doses, have reached better herbicidal effect, compared to single agent using having apparent synergistic effect, reduce dosage, reduce costs and safer；It expands to degrass spectrum, in addition to excellent to grassy weed effect, has preferable control efficiency to pernicious broadleaf weeds, sedge weed；The drug resistance because using single dose to generate can be slowed down simultaneously.

Description

A kind of Herbicidal combinations

Technical field

The present invention relates to a kind of Herbicidal combinations, in particular to a kind of Herbicidal combination for Control Weeds in Maize Field Object.

Background technique

In planting industry, prevention and treatment inhibits plant growth and the weeds for causing yield to reduce and cover crop are critically important. In order to reduce the loss as caused by the weeds in arable farming, such as growing difference or crop yield is reduced, and is had now been developed The weeds and the herbicidal active component to crop safety can be effectively prevented.Up to the present, there is the weeding largely developed Registered and for preventing and treating certain crops the weeds of agent.Herbicide for preventing and treating the weeds in specific arable farming should have foot Enough high activity of weeding and wide herbicidal spectrum, and response environment and crop safe enough.However, not every herbicide Above-mentioned requirements can be fully met.

The method of most-often used increase activity of weeding and the herbicidal spectrum for widening existing herbicide is that have two or more There are the herbicidal active compounds of different activity of weeding to mix.If mixing two or more herbicidal active compounds, may show The herbicide action outstanding than individual herbicide application.In this way, when the effect of the mixture of two or more ingredients is greater than respectively When the expection effort levels of ingredient, we term it " synergistic effects ".However, described two or a variety of herbicidal active compounds remove Synergistic effect present in careless mixture is only visible in some circumstances.Due to the side such as herbicidal performance, absorptivity, transfer, metabolism The difference in face, activity of weeding singly the applying lower than each ingredient of most of mixtures." antagonism " indicates such situation i.e. two Herbicide action singly the applying lower than each ingredient of the mixture of kind or a variety of herbicidal active compounds." addition " indicates such feelings The herbicide action of the shape i.e. mixture of two or more herbicidal active compounds and single Shi Xiangtong of each ingredient.

Topramezone, English common name Topramezone, chemical name [3- (4,5- dihydro -3- isoxazolyl) -4- first Base sulphonyl -2- methylbenzene] 5- hydroxyl -1- methyl-1 H- pyrazoles -4- base) ketone, chemical structural formula are as follows:

Topramezone is a kind of novel hydroxyl phenylacetone acid esters dual oxide enzyme inhibitor herbicide.Topramezone and its system For as known to WO98/31681 and WO99/58509.Its mechanism of action is the 4- hydroxy benzenes inhibited in plastoquinone biosynthesis Benzylacetone acid esters dual oxide enzyme (HPPD), the synthesis for influencing carotenoid indirectly interfere the conjunction of chloroplaset under illumination condition At and function, lead to serious chlorosis albefaction, tissue necrosis, plant is usually dead after processing 14 days.Due to the oxygen of chlorophyll Change degradation, the vitellarium poisoning symptom of especially susceptible weeds overground part is most obvious.Susceptible weeds are by blade, root absorption, And the upward and downward Bidirectional Conduction in plant, and stop growing quickly.Weeds aerial part occurs in 2-5 days after administration The poisoning symptom of albefaction poisoning symptom, growing point, blade and vein is most obvious, and the tissue of albefaction is gradually downright bad, and entire plant is withered Extremely, according to weather environment difference, 10-15 days or so are needed.Topramezone is very safe to corn, compares with sensitive weeds, beautiful The drug resistance of rice is to absorb since it is low to the sensitivity of target enzymes and conductive quantity is few, accretion rate is fast.Topramezone can have Effect kills annual gramineae and broadleaf weeds and sedge weed, such as herba digitariae, barnyard grass, herba setariae viridis, Brachiaria Griseb, herba eleusines indicae, open country Millet, hill Chinese pennisetum, sandbur, difformed galingale herb, cyperus iria, amaranth, knotweed, field bindweed, field thistle, Chenopodiaceae, Siberian cocklebur, black nightshade, piemarker, Datura, weasel hemp nettle, german chamomile, artemisiifolia, wild mustard, cicely, thorn bud fruit, bristle thorn bud chrysanthemum, annual mercury, South America beggarweed, Tassel flower, radix achyranthis bidentatae chrysanthemum, false acid pulp, dayflower, Brittle Falsepimpernel Herb, Mazus japonicus.It is right that topramezone can also effectively, steadily prevent and treat those ALS and triazine herbicide produce the broadleaf weeds of drug resistance.

Brominal (Bromoxynil), chemical formula are as follows: 3,5- bis- bromo- 4- 4-hydroxy-benzonitriles, structural formula are as follows:

Brominal is in the form of its caprylate, heptanoate, sodium salt or sylvite after foreign countries are widely used as selective seedling Cauline leaf process contact killing type herbicide.It is a kind of selective cauline leaf process contact killing type herbicide, is mainly absorbed by blade, passes through suppression Photosynthetic each process is made, makes tissue necrosis rapidly.Wheat, the broadleaf weeds in corn field can be effectively prevented and kill off, to grass Section's crop safety, the equal noresidue in crop cauline leaf and grain use within plant growth longer growth period, from corn-plant Leaf grows up to and can be used to the end completely for first and second leaf development leaf development to the end completely, such as corn 2 to 8 leaf phases can medication.

Bentazone (Bentazone), chemical name are 3-(1- Methylethyl) -1H-2,1,3- benzothiadiazine -4(3H) - Ketone -2,2- dioxide, the general entitled Bentazone of English, structural formula are as follows:

Bentazone is the selective herbicide after seedling of contact killing type, is used for seedling stage cauline leaf process, is risen by blade contact Effect.In use, bentazone, which first passes through blade face infiltration and is transmitted in chloroplaset, inhibits photosynthesis in dry land.Make in paddy field Used time, bentazone can be permeated again by blade face through root absorption, and cauline leaf is transmitted to, strong obstruction weeds photosynthesis with Water metabolism causes nutrition hungry, so that physiological function is lacked of proper care and lethal.Effective component is in tolerable crop body to the sugar that activity is weak Conjugates is metabolized and detoxifies, and to crop safety, after application 6 ~ 18 weeks, bentazone can be decomposed by the microorganisms in the soil.It is main to use In preventing and kill off cereal crop, cotton, peanut, soybean, sweet potato, tea place, careless pasture, rape and pea Tanaka Cyperaceae and broad-leaved is miscellaneous Grass, to flat bar scirpus triqueter, Herba Cyperi Glomerati, cyperus iria, difformed galingale herb, rhizoma alismatis, needle spikesedge herb, firefly Lin, Monochoria vaginalis, Monochoria korsakowii, mexicana, Bur beggar-ticks, water starwort, dragon's tongue, cyperus iria L. rhizoma scirpi, angustifolia arrowhead herb, bog pondweed, clearvers, shepherd's purse, field thistle, Siberian cocklebur, the rhizome of nutgrass flatsedge, iron amaranth Dish, thorn amaranth and branch amaranth, holds back the broadleaf weeds such as blue dish, grass of meadow rue, purslane and nutgrass flatsedge etc. effectively at Chenopodiaceae.

Summary of the invention

The invention aims to solve above-mentioned technical problem, the present invention provides a kind of Herbicidal combinations, the compositions By by topramezone, Brominal and bentazone carry out ternary built so that obtained new compositions prevent and kill off broadleaf weeds, Gain effect is achieved in the prevention and treatment of gramineae weed and sedge weed.

Topramezone, Brominal, weed eradication pine combination not only cause widening to the activity profile of controlling weeds, and play The effect of synergy.

The technical solution adopted by the present invention to solve the technical problems are as follows:

A kind of Herbicidal combinations, including three kinds of active constituent topramezones, Brominal and bentazone,

Wherein topramezone, Brominal and bentazone weight proportion are 1~10:1~100:1~100.

Further, the topramezone, Brominal and bentazone weight proportion are 1~10:1~50:1~50.

Further, the topramezone, Brominal and bentazone weight proportion are 1~5:1~20:1~50.

Further, topramezone, Brominal and bentazone weight proportion are 1~5:1~10:1~20.

A kind of Herbicidal combinations, it is living comprising active constituent topramezone, Brominal and bentazone, filler and/or surface Property agent.

A kind of Herbicidal combinations, the active constituent topramezone, Brominal and bentazone quality sum account for Herbicidal combination The 5%-90% of object.

A kind of Herbicidal combinations, the active constituent topramezone, Brominal and bentazone quality sum account for Herbicidal combination The 10%-80% of object.

A kind of Herbicidal combinations, the active constituent topramezone, Brominal and bentazone quality sum account for Herbicidal combination The 20%-60% of object.

A kind of Herbicidal combinations, the active constituent topramezone, Brominal and bentazone quality sum account for Herbicidal combination The 30%-50% of object.

Topramezone can not the syncrystallization or non-crystalline forms, crystalline hydrate and anhydrous crystalline forms presence.Benzene azoles grass Ketone also includes its tautomer.

Brominal can exist in the form of caprylate, heptanoate, sodium salt or sylvite.

Bentazone can exist in a salt form.

The dosage form of the Herbicidal combinations is wettable powder, missible oil, suspending agent, microcapsules, microemulsion, aqueous emulsion, hangs Floating emulsion, water dispersible granules, microcapsule suspension-suspendinagent agent or ultra low volume liquids.

Above-mentioned dosage form is this field regular dosage form, what preparation method was well known to those skilled in the art, is prepared into Auxiliary agent and/or filler used in above-mentioned various dosage forms and its dosage are similarly well-known to those skilled in the art, these It may refer to such as " formulations of pesticide processing technology " (Liu Bulin chief editor, the second edition).Auxiliary agent and/or filler used is for example Including but not limited to solvent, cosolvent, emulsifier, dispersing agent, wetting agent, adhesive, disintegrating agent, thickener, antifreezing agent, stabilization Agent, pH adjusting agent, filler and/or carrier etc..Those skilled in the art can select one such or a variety of auxiliary agents and/or Carrier.

Suitable liquid filler has: benzene,toluene,xylene, acetone, dimethylformamide, dimethyl sulfoxide, three chloromethanes Alkane, methylene chloride, hexamethylene, cyclohexanone, N-Methyl pyrrolidone, methanol, ethyl alcohol, propyl alcohol, isopropanol, butanol, isobutanol, ring Hexanol, Propylene Glycol ether, ethohexadiol ether, petroleum ether, acetonitrile, paraffin, tetrahydronaphthalene, isophorone, soybean oil, cottonseed One of oil etc. are a variety of；And water.

Suitable solid-filling agent are as follows: the natural minerals of such as ammonium salt and crushing, for example (,) it is kaolin, clay, talcum, white Chalk, quartz, attapulgite, montmorillonite or diatomite；With the synthetic mineral of crushing, such as high dispersive silica, aluminium oxide and Silicate；Solid carrier suitable for granule are as follows: the natural crystal for for example crushing and being classified, for example (,) it is calcite, marble, floating Synthesis particle and organic material (such as sawdust, coconut husk, the corncob of stone, sepiolite and dolomite and inorganic and organic powder Axis and tobacco rods) particle.

Suitable emulsifier can be selected: lauryl sodium sulfate, neopelex, dodecyl benzene sulfonic acid Calcium, thermally coupled distillation columns amine salt, castor oil polyoxyethylene ether phosphate amine salt, three phenethyl phenol polyoxy ether phosphorus Acid esters amine salt, Polyoxyethylene fatty acid amides fatty acid ester, Fixanol, alkyl isoquinolinium salt, dialkylmorpholinum salts, oleamide sulphur Hydrochlorate, diisopropyl naphthalene sulfonate, lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, styryl phenyl polyoxyethylene ether, It is phenethyl phenol polyoxyethylene poly-oxygen propylene aether, nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, polyxyethylated Ether, polyoxyethylene polyoxypropylene block polymer, alkyl phenol formaldehyde resin polyoxyethylene ether, polyoxy ethylene sorbitol fatty acid Ester, sorbitan monostearate, sorbitan monostearate polyoxyethylene ether, polyoxypropylene glycol mono fatty acid ester etc. One of or it is a variety of.

Suitable dispersing agent can be selected: lignosulfonates, p-hydroxyphenyl sodium lignin sulfonate, aliphatic alcohol polyethenoxy Ether sulfate, alkylnaphthalene sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, dodecyl trimethyl ammonium salt, alkyldimethylbenzylammonium Ammonium salt, two polyoxyethylene lauryl ether phosphate, styrene-maleic acid salt copolymer, aliphatic alcohol polyoxyvinethene phosphate, Nonylphenol polyoxyethylene ether, polyoxyethylene alkylaryl ether, polyoxyethylene lanolin alcohol, is gathered at glycerine fatty acid polyoxyethylene ether Ethylene oxide sorbitan aliphatic ester, polyoxyethylene glyceryl mono fatty acid ester, alkylolamides and polyoxyethylene alkyl amine etc. One of or it is a variety of.

Suitable wetting agent can be selected: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, isooctanol succinate sulphur Sour sodium, oleoyl methyl sodium taurocholate, polyoxyethylene lauryl ether carboxylic acid sodium, sodium N-lauroyl sarcosinate, N- lauroyl paddy Propylhomoserin sodium, dioctyl sulfosuccinate, polyoxyethylene alkylaryl ether phosphate ester salt, trisiloxanes polyoxyethylene ether, triphen The poly- base ether formaldehyde of ethyl -phenol polyoxyethylene ether, castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkylphenol-polyethenoxy Condensation product, alkylphenol-polyethenoxy base ether phosphate, polyoxyethylene fatty acid ester, higher fatty acid ester, sorbitan rouge One of fat acid esters etc. is a variety of.

Suitable adhesive can be selected: starch, polyvinylpyrrolidone, carboxymethyl cellulose, carboxyethyl cellulose, bright One of glue, Arabic gum, xanthan gum etc. are a variety of；

Suitable disintegrating agent can be selected: urea, sodium sulphate, calcium sulfate, sodium bicarbonate, ammonium sulfate, magnesium chloride, sodium chloride Deng one of or it is a variety of；

Suitable thickener can be selected: Arabic gum, xanthan gum, gelatin, polyvinyl alcohol, aluminium-magnesium silicate, carboxymethyl are fine Tie up one of plain sodium etc. or a variety of；

Suitable defoaming agent can be selected: one of butylphosphoric acid ester, phosphoric acid isobutyl ester, n- octanol, silicone etc. are more Kind；

Suitable antifreezing agent can be selected: be selected from one of ethylene glycol, propylene glycol, glycerine etc. or a variety of；

Suitable stabilizer can be selected: triphenyl phosphite, N- soybean oleyl trimethylene diamine, dialkyl group succinic acid One of sulfonated ester, epoxychloropropane, butyl glycidyl ether etc. are a variety of；

Suitable preservative can be selected: one of benzoic acid, sodium benzoate etc. are a variety of；

Suitable pH adjusting agent can be selected: hydrochloric acid, calgon, sodium citrate, sodium bicarbonate, sodium hydroxide, hydrogen One of oxidant, triethanolamine etc. are a variety of.

A kind of Herbicidal combinations are answered preventing and kill off broad-leaved section weeds, sedge weed, the undesirable plant of gramineae weed With.

Herbicidal combinations of the present invention are suitble to prevent and treat the growth of a large amount of undesirable plants, including monocotyledon weed, especially Annual grassy weeds such as gramineae weed (dogstail), including Echinochloa species such as barnyard grass (Echinochloa crusgalli Var.crus-galli), herba digitariae species such as herba digitariae (Digitaria sanguinalis), setaria species such as herba setariae viridis (Setaria viridis) and faber bristlegrass herb (Setaria faberii), sorghum (Sorghum) species such as Sorghum halepense (Sorghum halepense Pers.), wild avena sativa category (Avena) species such as wild avena sativa (Avena fatua), Cenchrus (Cenchrus) species such as sandbur (Cenchrus echinatus), herba bromi japonici species, Lolium species, phalaris arundinacea object Kind, wild Panicum (Eriochloa) species, Panicum (Panicum) species, Brachiaria species, annual bluegrass (Poa annua) see Wheat ma (Alopecurus myosuroides), Aegilops tauschi (Aegilops cylindrical), couchgrass (Agropyron repens), Ah draping over one's shoulders draw careless (Apera spica-venti), herba eleusines indicae (Eleusine indica), Chow Root of the tooth (Cynodon dactylon) etc..

Herbicidal combinations of the present invention are also suitable for preventing and treating a large amount of broadleaf weeds, especially broadleaf weeds, including Polygonum (Polygonum) species such as RHIZOMA FAGOPYRI CYMOSI (Polygonum convolvolus), Amaranthus species such as purslane (Amaranthus Retroflexus), for example common Chenopodiaceae (Chenopodium album L.) of Chenopodium species, chrysanthemum harvest spp (Sida) species such as chrysanthemum It harvests (Sida spinosa L.), Ambrosia (Ambrosia) species such as common ragweed (Ambrosia artemisiifolia), Thorn bud Chrysanthemum (Acanthospermum) species, Anthemis (Anthemis) species, Atriplex (Atriplex) species, Cirsium (Cirsium) species, japanese bearbind genus (Convolvulus) species, Conyza (Conyza) species, Cassia (Cassia) object Kind, Commelina communis category (Commelina) species, Datura (Datura) species, Euphorbia (Euphorbia) species, geranium wilfordii Belong to (Geranium) species, ox achyranthes chrysanthemum spp (Galinsoga) species, morning glory (Ipomoea (Ipomoea) species), lamium (Lamium) species, mallow (Malva) species, Matricaria (Matricaria) species, Sistrurus (Sysimbrium) object Kind, Solanum species, Xanthium (Xanthium) species, Veronica species, Viola (Viola) species, common herba stellariae mediae (Stellaria media), piemarker (Abutilon theophrasti), big fruit sesbania (Hemp sesbania (Sesbania Exaltata Cory)), have away from single flower certain herbaceous plants with big flowers (Anoda cristata), beggar-ticks (Bidens pilosa), field mustard (Brassica kaber), shepherd's purse (Capsella bursa-pastoris), corn flower (Centaurea cyanus), yellow weasel Hemp nettle (Galeopsis tetrahit), clearvers, sunflower (Helianthus annuus), herba lysimachiae (Desmodium Tortuosum), kochia scoparia (Kochia scoparia), mountain wood is blue (Mercurialis annua), forget-me-not (Myosotis Arvensis), corn poppy (Papaver rhoeas), corn radish (Raphanus raphanistrum), saltwort (Salsola kali), wild mustard (Sinapis arvensis), sowthistle (Sonchus arvensis), penny cress (Thlaspi Arvense), marigold (Tagetes minuta), black clover (Richardia brasiliensis) etc..

Herbicidal combinations of the invention are also suitable for preventing and treating a large amount of annual and perennial sedge weeds, including Cyperus (cyperus) species such as convexutricle sedge herb (Cyperus rotundus L.), chufa (Cyperus esculentus L.), cyperus Cyperus malaccensis (Cyperus brevifolius H.), yellow grain husk nutgrass flatsedge (Cyperus microiria Steud), cyperus iria (Cyperusiria L.) etc..

Herbicidal combinations of the invention are suitble to prevent and kill off/prevent and treat undesirable plant in useful plant (i.e. crop).This Inventive composition generally is suitable for preventing and kill off/preventing and treating undesirable plant growth in following crop:

Cereal crops, for example,

Cereal (granule cereal) such as wheat (Triticum aestivum) and small wheat crops such as durum wheat (T.durum), one grained wheat (T.monococcum), emmer wheat (T.dicoccon) and spelt (T.spelta), rye (Secale cereale), triticale (Tritiosecale), barley (Hordeum vulgare)；

Corn (Zea mays)；

Sorghum (such as sugar grass (Sorghum bicolour))；

Rice (Oryza (Oryza) such as rice (Oryza sativa) and African rice (Oryzaglaberrima)；

Sugarcane；

Beans (Legumes (pulse family (Fabaceae))), for example including soybean (Glycine max.), peanut (Arachis Hypogaea) and legume crop such as pea (including pea (Pisum sativum), pigeonpea and cowpea), Kidney bean (including semen viciae fabae (Vicia faba), black mixed coloured cowpea category (Vigna) and black Phaseolus (Phaseolus)) and hyacinth bean (Lens culinaris (lens culinaris var.)) ；

Cruciferae, for example including Canola (cabbage type rape (Brassica napus)), rape (Brassica Napus), cabbage (B.oleracea var.), leaf mustard such as leaf mustard (B.juncea), Chinese cabbage (B.campestris), broadbeaked mustard (B.narinosa), black mustard (B.nigra) and Mediterranean open country blister beetle (B.tournefortii)；And turnip (Brassica rapa var.)；

Other broad leaf crops, for example including sunflower, cotton, flax, linseed, sugar beet, potato and tomato；

TNV crop (TNV: tree, kernel and rattan), for example including grape, citrus, a kind of fruit, such as apple, pear, etc., such as apple and pears, coffee are opened Heart fruit and oil palm, drupe, such as peach, almond, walnut, olive, cherry, Li Hexing；

Turf, herbage and pasture；

Onion and garlic；

Bulb ornamental plant such as tulip and narcissus；

Coniferous tree and deciduous tree such as Pinus (pinus), fir, Oak Tree, maple, Fructus Corni, hawthorn, Malus spectabilis and Rhamnus (rhamnus) (sandlwood)；

Garden ornamental plant such as petunia, marigold, rose and toad's-mouth.

Herbicidal combinations of the invention are particluarly suitable for wheat, barley, rye, triticale, durum wheat, rice, corn, sweet Sugarcane, sorghum, soybean, legume crop such as pea, Kidney bean and hyacinth bean, peanut, sunflower, sugar beet, potato, cotton, Btassica Crop, such as rape, Canola, leaf mustard, cabbage and turnip, turf, grape, a kind of fruit, such as apple, pear, etc., such as apple and pears, drupe, such as peach, apricot Benevolence, walnut, olive, cherry, Li Hexing, citrus, coffee, American pistachios, garden ornamental plant, as rose, petunia, marigold, Toad's-mouth, bulb ornamental plant such as tulip and narcissus, coniferous tree and deciduous tree for example Pinus, fir, Oak Tree, maple, Fructus Corni, Undesirable plant growth is prevented and kill off/prevented and treated in hawthorn, Malus spectabilis.

Herbicidal combinations of the invention are most suitable in onion, pineapple, asparagus, tea, lemon, wheat, barley, rye, small black Wheat, durum wheat, rice, corn, sugarcane, sorghum, soybean, pea, Kidney bean and hyacinth bean, peanut, sunflower, sugar beet, potato, Cotton, Brassicas crop, such as rape, Canola, leaf mustard, cabbage and turnip, turf, grape, drupe, such as peach, almond, core Undesirable plant growth is prevented and kill off/prevented and treated in peach, olive, cherry, Li Hexing, citrus and American pistachios.

Herbicidal combinations of the invention especially wheat, barley, rye, rice, corn, sugarcane, sorghum, soybean, peanut, to Day certain herbaceous plants with big flowers, sugar beet, potato, cotton, in cole crop, it is active to broadleaf weeds, gramineae weed, sedge weed, Crop plant will not significantly be damaged.The effect especially occurs under low administration dosage.

Herbicidal combinations of the invention can also apply by breeding (method including genetic engineering) to herbicide Effect have on indefatigable crop.

Herbicidal combinations of the invention can be also used for through the breeding insect resistant including gene engineering method Or the crop of fungi invasion.

Herbicidal combinations of the invention are further adapted for making plant part disleave and drying, for example, to cotton, potato, rape, The disleave and drying of sunflower, soybean or semen viciae fabae, especially cotton crop.

Herbicidal combinations of the invention as desiccant are particularly suitable for dry such as potato, rape, sunflower and big The aerial part of the crop of beans.This makes it possible that the complete mechanicalization of these important crops harvests.By in certain time Concentrate in time limit cracking or reduce to the adherency of tree can promote a kind of fruit, such as apple, pear, etc.s of citrus fruit, olive and other kinds, drupe and The harvest of nut.Same mechanism, promote fruit parts or leaf portion point generated the branch part of plant between disengaging tissue for Useful plant, the disleave especially for cotton are also beneficial.

Herbicidal combinations of the invention can also admirably prevent and treat the undesirable plant in non-crop area.Non- crop Region Ru Lu, railway, meadow, utility line, the undesirable plant growth especially in the region there are trees.

The present invention also provides a kind of methods for controlling undesirable plant, comprising: (i) undesirable plant germination it Before (before bud)；(ii) after undesirable plant germination (after bud), or (iii) when (i) and (ii), weeding is effective The Herbicidal combinations of amount are applied to the region of undesirable plant, plant propagation material or undesirable plant growth

Before Herbicidal combinations of the invention can emerge or out postemergence application, i.e., before undesirable plant emergence, it In and/or apply later.When composition is used in crop, they can after the sowing and before crops emergence or it After apply.However, the present composition can also be applied before crop seeding.

A method of preventing and treating undesirable plant, which is characterized in that by the active constituent of Herbicidal combinations of the invention Topramezone with, Brominal, bentazone collectively or individually be applied to undesirable plant, plant propagation material, or be not intended to Plant growth region.

Herbicidal combinations of the invention include a effective amount of active constituent topramezone, Brominal, bentazone with collaboration Effect.It can be observed to act synergistically when active constituent topramezone, Brominal, bentazone are administered simultaneously jointly or almost；When When applying active constituent topramezone, Brominal, bentazone respectively in different times, synergistic effect is also observed that；It can also To be applied after application before sequential application topramezone, Brominal, bentazone, such as first bud then bud, or applied after first early stage bud With then being applied after mid-term or later period bud.Whether herbicide topramezone, Brominal, bentazone are jointly or separately prepared and are applied It is not important with and applied in what order in the case where separate administration.It is preferred that common or active constituent is almost administered simultaneously Topramezone, Brominal, bentazone, and be particularly preferably co-administered.

Herbicidal combinations of the invention can be applied in a usual manner by using technology known to those of skill in the art.It closes Suitable technology includes by spraying, atomization, dusting, broadcasts sowing or pour.Application type depends on desired mesh in a well-known manner 's；The technology is it is ensured that the best of inventive compound may distribution under any circumstance.

Herbicidal combinations of the invention can also be applied to soil surface.If by Herbicidal combination of the invention before germination Object is applied to soil surface, then entirely prevents that weeds seedling germinates or weed growth is to cotyledon period, but then it just stops Growth, and it is finally completely dead after two weeks to surrounding.

When Herbicidal combinations of the invention are applied to green plant part after undesirable plant germination, can handle Same growth that is rapid and effectively preventing undesirable plant afterwards.Undesirable plant keeps depositing when in use after a period of time Growth period, more or less die off rapidly, therefore applying Herbicidal combinations of the invention in this way can be rapid And the competition of undesirable plant harmful to crop is enduringly prevented, while reducing the loss of crop quality and quantity.The present invention Composition mainly passes through by spraying, and especially foliar spray is applied on plant.It is removed by low capacity and ultra-low-volume method application Careless composition is possible.

If active constituent cannot be well tolerable by certain crops, can be used wherein by spraying apparatus weed sprays Composition so that they reach be grown in the following leaf for being not intended to plant or exposed soil when as few as possible (if having If) application technique of the leaves of tactiosensible crops.

When Herbicidal combinations of the invention are handled for bare place, Herbicidal combinations of the present invention are applied to the stem of weeds The cultivation medium that leaf or weeds are survived, such as in soil.

Compared with prior art, the present invention has the following advantages:

The present invention relates to a kind of ternary built herbicidal compositions containing topramezone, Brominal and bentazone, wherein three The advantages of kind component mechanisms are different, and the medicament after compounding combines three kinds of single doses, have reached better herbicidal effect, relatively Using in single dose has apparent synergistic effect, reduces dosage, reduces costs and safer；It expands to degrass spectrum, it is right In addition to excellent to grassy weed effect, there is preferable control efficiency to pernicious broadleaf weeds, sedge weed；It can slow down simultaneously Because of the drug resistance for using single dose to generate.

Specific embodiment

Below with reference to embodiment, the invention will be further described:

Example of formulations

Embodiment 1: wettable powder

Topramezone	1%
		Brominal	5%
Bentazone sodium salt	10%
		Sodium butylnaphthalenesulfonate	3%
Sodium metnylene bis-naphthalene sulfonate	3%
		White carbon black	20%
Kaolin	Surplus

It is uniformly mixed entering in mixer after above-mentioned formula in proportion coarse crushing, obtains weeding after the airflow crushes Composite wettable powder.

Embodiment 2: suspoemulsion

Topramezone	1%
		Brominal	10%
Bentazone	30%
		Ethoxylated castor oil	5%
SOLVESSOTM200	10%
		To methoxyl group fatty acyl amido benzene sulfonic acid sodium salt	8%
APES formaldehyde condensation products sulfat	4%
		Aluminium-magnesium silicate	1%
Bentonite	1%
		Organosilicon	0.1%
Glycerine	5%
		Water	Surplus

Brominal is dissolved in SOLVESSO^TMIn 200, addition obtains oily phase to methoxyl group fatty acyl amido benzene sulfonic acid sodium salt； According to formula by topramezone, bentazone, to methoxyl group fatty acyl amido benzene sulfonic acid sodium salt, alkyl phenol polyoxyethylene ether formaldehyde condensation The suspending agent of topramezone, bentazone is obtained after object sulfate, water is ground and/or high speed shear；Oil is added under stiring Enter suspended phase and obtains suspoemulsion.

Embodiment 3: water dispersible granules

Topramezone	5%
		Brominal	15%
Bentazone sodium salt	45%
		Lauryl sodium sulfate	3%
Polycarboxylate	3%
		Ammonium sulfate	4%
Polyethylene glycol	2%
		Kaolin	Surplus

By above-mentioned formula, dry pulverization process, granulation, drying, screening prepare obtained Herbicidal combinations water dispersible grain in proportion Agent.

4 missible oil of embodiment

Topramezone	1%
		Brominal	5%
Bentazone	20%
		Castor oil polyoxyethylene ether	5%
Neopelex	5%
		N-Methyl pyrrolidone	Surplus

Raw medicine, solvent, emulsifier in above-mentioned formula are dissolved into the phase of homogeneous transparent.

Embodiment 5: suspending agent

Topramezone	2%
		Brominal	10%
Bentazone	20%
		Fatty alcohol polyoxyethylene ether sulfosuccinic acid monoesters disodium	3%
Fatty alcohol polyoxyethylene ether	3%
		Sodium lignin sulfonate	3%
Bentonite	1%
		Defoaming agent	0.1%
Water	Surplus

Said components are put in proportion into be transferred in mixer for well-distribution after grinding in sand milling kettle and are mixed, Herbicidal combination is obtained Object suspending agent.

Embodiment 6: microemulsion

Topramezone	6%
		Brominal	10%
Bentazone	40%
		N-Methyl pyrrolidone	20%
Styrene phenol formaldehyde resin polyoxyethylene ether phosphate salt	5%
		Calcium dodecyl benzene sulfonate	5%
Deionized water	Surplus

Above-mentioned raw medicine, solvent, emulsifier are mixed in proportion, made it dissolve as homogeneous oil phase；Water-soluble component and go from Sub- water is mixed to prepare water phase；It is under stiring that oil is mutually mixed with water, obtain microemulsion.

Embodiment 7: wettable powder

Topramezone	10%
		Brominal	20%
Bentazone sodium salt	50%
		Sodium lignin sulfonate	5%
Sodium metnylene bis-naphthalene sulfonate	5%
		Kaolin	Surplus

It is uniformly mixed entering in mixer after above-mentioned formula in proportion coarse crushing, obtains weeding after the airflow crushes Composite wettable powder.

8 microcapsule suspension-suspendinagent agent of embodiment

Synperonic PE/64	0.2%
		Citric acid	0.05%
Catalyst	0.1%
		Water	5%
Topramezone	5%
		PAPI TM	1.35%
SOLVESSOTM200	5%
		Synperonic TMPE/64	5%
Sodium lignin sulphate	0.3%
		Defoaming agent	0.16%
Urea	8.4%
		Bromoxynil octanoate	10%
Bentazone	30%
		Water	Complement to 100%

By PAPI^TM, bromoxynil octanoate, SOLVESSO^TM200 oil formed are added to containing Synperonic^TMPE/64's In aqueous solution, emulsion is formed;Then it heats and keeps the temperature 50^oIt is added catalyst reaction 2 hours under C.It is obtained after cooling pungent The microcapsules of acylbromide cyanophenyl.

Synperonic ^TMPE/64, dispersing agent sodium lignin sulphate, defoaming agent, urea, topramezone, bentazone, water It mixes in proportion, obtains uniformly, obtaining suspending agent after ground and/or high speed shear.

By in the microcapsules addition topramezone of obtained bromoxynil octanoate, bentazone suspending agent, it is uniformly mixing to obtain micro- Capsule suspension-suspending agent.

9 missible oil of embodiment

Topramezone	1%
		Brominal	5%
Bentazone	10%
		Ethoxylated castor oil	5%
Calcium dodecyl benzene sulfonate	3%
		SOLVESSOTM100	Surplus

Above-mentioned each component is mixed, stirring is to obtaining transparent homogeneous phase.

10 water dispersible granules of embodiment

Topramezone	5%
		Brominal	20%
Bentazone sodium salt	40%
		MODIFIED LIGNOSULPHONATE	1%
Lauryl sodium sulfate	1%
		Sodium chloride	1%
Kaolin	Surplus

By topramezone, Brominal, bentazone sodium salt active constituent, dispersing agent, wetting agent, disintegrating agent and filler by formula Ratio be uniformly mixed, by air-flow crushing at wettable powder；It adds a certain amount of water mixing extruding and makes material.Through dry sieve Water dispersible granules are obtained after point.

+ 65% bentazone of+30% Brominal of 11 5% topramezone of embodiment

Topramezone	5%
		Brominal	30%
Bentazone	65%

Topramezone, Brominal, bentazone are proportionally uniformly mixed.

+ 50% bentazone of+40% bromoxynil octanoate of 12 10% topramezone of embodiment

Topramezone	10%
		Bromoxynil octanoate	40%
Bentazone	50%

Topramezone, Brominal, bentazone are proportionally uniformly mixed.

+ 75% bentazone sodium salt of+20% Brominal of 13 5% topramezone of embodiment

Topramezone	5%
		Brominal	20%
Bentazone sodium salt	75%

Topramezone, Brominal, bentazone are proportionally uniformly mixed.

+ 70% bentazone sodium salt of+25% bromoxynil octanoate of 14 5% topramezone of embodiment

Topramezone	5%
		Bromoxynil octanoate	25%
Bentazone sodium salt	70%

Topramezone, Brominal, bentazone are proportionally uniformly mixed.

Above embodiments proportion is weight per distribution ratio.

Biological Examples

1, it tests: the activity of weeding test of topramezone, Brominal and bentazone compound drug

Medicament is by the way of ready-to-use.In 10*10cm plastic tub, it will be not used in the corn field of herbicide Soil is as culture soil.Barnyard grass (the Echinochloa crusgalli (L.) that corn upper one year field is acquired Beauv.), semen euphorbiae (Leptochloachinensis (L.) Nees), difformed galingale herb (Cyperus difformis L.), Firefly Lin (Scirpus juncoides Roxb.), flat stalk Fischer grass (Scirpus planiculmis Fr.Schmidt), wild arrowhead (Sagittaria trifolia var. sinensis), rhizoma alismatis (Alisma plantago-aquatica Linn.), duck Tongue grass (Monochoriapauciflora(Bl.) Kunth.), the leaching of the seed of bog pondweed (Potamogeton franchetii) It is uniformly sprinkling upon soil surface after bubble, it is waited to grow to 3-4 leaf phase size.Then respectively spray topramezone, bentazone, Brominal, Bromoxynil octanoate, bentazone+Brominal, bentazone+bromoxynil octanoate, topramezone+bentazone, topramezone+Brominal, benzene Then azoles humulone+bromoxynil octanoate, topramezone+bentazone+Brominal, topramezone+Brominal+bromoxynil octanoate carry out Observation analysis.

To barnyard grass (Echinochloa crusgalli (L.) Beauv.), semen euphorbiae after spraying 3 weeks (Leptochloachinensis (L.) Nees), difformed galingale herb (Cyperus difformis L.), firefly Lin (Scirpus Juncoides Roxb.), flat stalk Fischer grass (Scirpus planiculmis Fr.Schmidt), wild arrowhead (Sagittaria Trifolia var. sinensis), rhizoma alismatis (Alisma plantago-aquatica Linn.), Monochoria vaginalis (Monochoriapauciflora(Bl.) Kunth.), the survival rate of bog pondweed (Potamogeton franchetii) into Row investigation.

2, the evaluation of synergistic effect

The predictive role of the specific combination of three kinds of reactive compounds can be used so-called " Colby formula " (referring to S.R. Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations ", Weeds 1967,15,20-22) and it calculates as follows: if

A is the activity when the use of dosage being mg/ha or reactive compound A that concentration is mppm；It is expressed as accounting for and not locate Manage the percentage of control；

B is the activity when the use of dosage being ng/ha or reactive compound B that concentration is nppm, is expressed as accounting for and not locate Manage the percentage of control；

C is the activity when the use of dosage being hg/ha or reactive compound C that concentration is hppm, is expressed as accounting for and not locate Manage the percentage of control；

E₀It is when using dosage is m, n, h g/ha or concentration are m, when reactive compound A, B and the C of n, hppm Expection activity,

E₀=A×B×C/ (100×^(N-1))

N is 3；

If the active E of actual observation is greater than expection activity (E₀), then the composition has synergistic effect.

If the actual control of weeds rate observed in biologic test is more than to be calculated using Colby ' s method Desired value (E), then it represents that the effect of Herbicidal combinations is greater than the summation of each agent effectiveness, it means that composition is made with synergy With.

Test result:

To barnyard grass (Echinochloa crusgalli (L.) Beauv.), semen euphorbiae after spraying 3 weeks (Leptochloachinensis (L.) Nees), difformed galingale herb (Cyperus difformis L.), firefly Lin (Scirpus Juncoides Roxb.), flat stalk Fischer grass (Scirpus planiculmis Fr.Schmidt), wild arrowhead (Sagittaria Trifolia var. sinensis), rhizoma alismatis (Alisma plantago-aquatica Linn.), Monochoria vaginalis (Monochoriapauciflora(Bl.) Kunth.), the tune of the survival rate of bog pondweed (Potamogeton franchetii) Come to an end fruit:

Table 1: topramezone, Brominal, bentazone, topramezone+Brominal+bentazone

Table 2: topramezone, bromoxynil octanoate, bentazone, topramezone+bromoxynil octanoate+bentazone

Using Herbicidal combinations of the invention, the herbicide action to weeds is more than in the present composition The summation of independent herbicide action when contained each herbicides compounds are individually sprayed.Therefore, compared with each herbicides compounds list is applied, this The composition of invention can provide same weeds herbicide action under the lower dosage of herbicides compounds.This activity of weeding and The increase of effect and the reduction of active constituent dosage have convincingly demonstrated the synergistic effect of Herbicidal combinations of the present invention.

Claims (14)

1. a kind of Herbicidal combinations, it is characterised in that: including three kinds of active constituent topramezones, Brominal and bentazone, wherein Topramezone, Brominal and bentazone weight proportion are 1~10:1~100:1~100.

2. Herbicidal combinations according to claim 1, it is characterised in that: topramezone, Brominal and bentazone weight are matched Than being 1~10:1~50:1~50.

3. Herbicidal combinations according to claim 1, it is characterised in that: topramezone, Brominal and bentazone weight are matched Than being 1~5:1~20:1~50.

4. Herbicidal combinations according to claim 1, it is characterised in that: topramezone, Brominal and bentazone weight are matched Than being 1~5:1~10:1~20.

5. Herbicidal combinations according to claim 1, it is characterised in that: comprising active constituent topramezone, Brominal and Bentazone, filler and/or surfactant.

6. Herbicidal combinations according to claim 1, it is characterised in that: the active constituent topramezone, Brominal and Bentazone quality sum accounts for the 5%-90% of Herbicidal combinations.

7. Herbicidal combinations according to claim 1, it is characterised in that: the active constituent topramezone, Brominal and Bentazone quality sum accounts for the 10%-80% of Herbicidal combinations.

8. Herbicidal combinations according to claim 1, it is characterised in that: the active constituent topramezone, Brominal and Bentazone quality sum accounts for the 20%-60% of Herbicidal combinations.

9. Herbicidal combinations according to claim 1, it is characterised in that: the active constituent topramezone, Brominal and Bentazone quality sum accounts for the 30%-50% of Herbicidal combinations.

10. Herbicidal combinations described in claim 1, it is characterised in that: dosage form is wettable powder, missible oil, suspending agent, micro-capsule Agent, microemulsion, aqueous emulsion, suspoemulsion, water dispersible granules, soluble granula, aqua, microcapsule suspension-suspendinagent agent, ultra-low volume liquid Agent.

11. Herbicidal combinations described in claim 1 are preventing and kill off broad-leaved section weeds, sedge weed, answering in gramineae weed With.

12. Herbicidal combinations described in claim 1 are to prevent and kill off corn field broad-leaved section weeds, sedge weed, grass family miscellaneous Application in grass.

13. a kind of method for controlling undesirable plant, it is characterised in that: include: (i) undesirable plant germination it Before；(ii) after undesirable plant germination, or (iii) when (i) and (ii), by the claim 1 of herbicidally effective amount Herbicidal combinations be applied on the growth place or leaf or stem of undesirable plant.

14. a kind of method for preventing and treating undesirable plant, which is characterized in that by the work of Herbicidal combinations described in claim 1 Property ingredient topramezone, Brominal, bentazone collectively or individually are applied to growth place or leaf or the stem of undesirable plant On.