CN115989818A - Ternary compound pesticide composition containing glyphosate - Google Patents
Ternary compound pesticide composition containing glyphosate Download PDFInfo
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- CN115989818A CN115989818A CN202111224469.XA CN202111224469A CN115989818A CN 115989818 A CN115989818 A CN 115989818A CN 202111224469 A CN202111224469 A CN 202111224469A CN 115989818 A CN115989818 A CN 115989818A
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- CN
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- pesticide composition
- percent
- glyphosate
- ternary
- rimsulfuron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- 230000014616 translation Effects 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a ternary compound pesticide composition containing glyphosate, which comprises the active ingredients of A, B, C, wherein A is glyphosate, B is rimsulfuron, C is bromoxynil octanoate or methyl zincate, the weight percentage of glyphosate is 30-65%, the weight percentage of rimsulfuron is 1-5%, and the weight percentage of bromoxynil octanoate is 4-15% (or 0.1-5%). The composition can be prepared into wettable powder, water dispersible granules and oil suspending agents. The weeding composition is used for preventing and controlling glyphosate-tolerant transgenic corn fields, and mainly aims at annual or perennial grassy weeds and broadleaf weeds.
Description
Technical Field
The invention relates to a pesticide composition containing glyphosate, in particular to a ternary compound pesticide composition containing glyphosate, rimsulfuron, bromoxynil octanoate or methyl oxazinate, and belongs to the technical field of pesticides.
Background
Glyphosate (glyphosate) is a non-selective, residue-free and biocidal herbicide, is very effective in preventing and controlling perennial deep-rooted malignant weeds, and has wide application in agriculture, forestry, gardening and other fields. Mainly inhibit enolpyruvylshikimin phosphate synthase in plants, thereby inhibiting the conversion of shikimin to phenylalanine, tyrosine and tryptophan, and interfering protein synthesis, resulting in death of plants. Because of the continuous expansion of the planting area of the transgenic crops, the demand of the glyphosate is rapidly increased, and the glyphosate becomes the pesticide variety with the largest global sales.
Rimsulfuron (rimsulfuron), a sulfonylurea herbicide variety, is absorbed by roots, stems, and leaves, and transmitted to meristems, and causes the plant to stop growing by inhibiting the biosynthesis of essential valine and isoleucine, thereby differentiating cells. Has the advantages of high selectivity, high efficiency, low toxicity and the like, is an important corn field herbicide and is used for preventing and killing annual or perennial grassy and broadleaf weeds.
Bromoxynil octanoate (bromoxynil octanoate), a benzonitrile contact herbicide with certain systemic activity, is mainly absorbed by leaves, conducts extremely limited conduction in plants, rapidly necroses plant tissues by inhibiting various processes of photosynthesis, and can be used for preventing and killing annual and perennial broadleaf weeds.
Methyl oxazinate (filthiacet-methyl), a selective post-emergence herbicide, is mainly used for preventing and killing annual broadleaf weeds in soybean and corn fields by inhibiting primordium Bo Linyuan oxidase in chloroplast synthesis of sensitive plants to cause accumulation of primordium and cell membrane necrosis and death of plants.
Along with the continuous popularization of glyphosate-resistant transgenic corn, the planting scale is larger and larger, a plurality of problems are found when the transgenic corn field weed is prevented and removed, malignant weed is difficult to prevent and remove, broadleaf weed preventing and controlling effect is poor, and the like, wherein the most serious is the excessive use of glyphosate herbicide, and the generation of phytotoxicity is easy to cause.
Some researches show that the herbicide can overcome or reduce phytotoxicity when mixed, and different herbicides can make up for the respective defects after mixed use due to different chemical components, action mechanisms and weed control spectrums. Moreover, field experiments show that the single herbicide is easy to generate drug resistance after long-term use, and can cause great influence on soil environment. The applicant aims at developing herbicide compound preparation, researches a series of herbicide mixture products, aims at preventing and controlling glyphosate-tolerant transgenic corn weeds, and aims at developing compound herbicide products which have wide herbicide control spectrum, small dosage, safety to crops and good market prospect. In the prior art, no report is reported on ternary combination of glyphosate, rimsulfuron and bromoxynil octanoate or methyl oxazin.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the ternary compound pesticide composition containing the glyphosate, which is a ternary compound preparation of the glyphosate, the rimsulfuron and the bromoxynil octanoate or the methyl oxazinate, and can be used for preventing and killing weeds in glyphosate-resistant transgenic corn fields, the weeding efficiency is obviously improved, and the survival rate of corn is not influenced. The pesticide composition has the advantages of high weed control efficiency, wide control target coverage, difficult generation of drug resistance, high efficiency, economy, safety and the like.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a ternary compound pesticide composition containing glyphosate, the active ingredients of which consist of A, B and C, wherein: a is glyphosate, B is rimsulfuron, C is any one of bromoxynil C1 octanoate or methyl C2 oxazin.
In the technical scheme, the total weight of the active ingredients accounts for 31.1-85% of the total weight of the ternary compound pesticide composition, and is preferably 31.7-68%.
In the technical scheme, the compound weight ratio of the active ingredients is A: b: c1/c2= (30-65): (1-5): (4 to 15)/(0.1 to 5), preferably (30 to 55): (1.5-3): (5-10)/(0.2-2).
In the technical scheme, the pesticide composition is prepared from wettable powder, water dispersible granules and an oil suspending agent, and is preferably an oil suspending agent.
In the technical scheme, when the pesticide composition is wettable powder, the pesticide composition comprises the following components in percentage by weight: 30-55% of glyphosate, 1.5-3% of rimsulfuron, 0.2-2% of methyl oxazin, 3-10% of dispersing agent, 1-3% of wetting agent and the balance of carrier to 100%.
In the technical scheme, the wettable powder is prepared by the following method: mixing glyphosate, rimsulfuron, methyl zincate, a dispersing agent, a wetting agent and a carrier, uniformly mixing in a mixer, crushing by a jet mill, and uniformly mixing to obtain the wettable powder.
In the technical scheme, when the pesticide composition is in the form of water dispersible granules, the pesticide composition comprises the following components in percentage by weight: 30 to 55 percent of glyphosate, 1.5 to 3 percent of rimsulfuron, 0.2 to 2 percent of methyl oxazin, 3 to 10 percent of dispersing agent, 1 to 3 percent of wetting agent, 0.5 to 5 percent of disintegrating agent, 0.5 to 1 percent of adhesive and the balance of carrier to 100 percent.
In the technical scheme, the water dispersible granule is prepared by the following method: uniformly mixing glyphosate, rimsulfuron, methyl zincate, a dispersing agent, a wetting agent, a disintegrating agent, an adhesive and a carrier, crushing by a jet mill, adding water, kneading and granulating, and drying to prepare the water dispersible granule.
In the technical scheme, when the pesticide composition is in the form of an oil suspending agent, the pesticide composition comprises the following components in percentage by weight: 30 to 35 percent of glyphosate, 1.5 to 2 percent of rimsulfuron, 5 to 10 percent of bromoxynil octanoate or 0.5 to 1.5 percent of methyl oxazinate, 3.5 to 15 percent of emulsifier, 1 to 3 percent of dispersing agent and 0.5 to 2 percent of thickening agent, and the oil phase medium is complemented to 100 percent.
In the technical scheme, the oil suspending agent is prepared by the following method: uniformly mixing glyphosate, rimsulfuron, bromoxynil octanoate or methyl zincate, an emulsifying agent, a dispersing agent, a thickening agent and an oil phase medium, and then, putting the mixture into a sand mill for sand milling until 90% of the mixture has a particle size smaller than 5 microns, thus obtaining the oil suspension.
In the above technical scheme, the dispersant is selected from: polycarboxylate (such as SP-OF3498D in the Optimago chemical industry), sodium methylenesulfonate, lignin sulfonate, alkylphenol ethoxylate formaldehyde condensate sulfate, naphthalene sulfonate formaldehyde condensate sodium salt, alkylphenol ethoxylate, fatty amine ethoxylate, fatty acid polyoxyethylene ester and glycerin fatty acid ester polyoxyethylene ether.
In the above technical solution, the wetting agent is selected from: any one or two or more of alkyl benzene polyoxyethylene ether phosphate, phenethyl phenol polyoxyethylene ether phosphate, alkyl sulfate, alkyl sulfonate (for example TERSPERSE 2425, manufactured by Henschel corporation, USA), sodium dodecyl sulfate, nekal BX, wetting penetrating agent F and sodium dodecyl benzene sulfonate are mixed in any proportion.
In the above technical solution, the emulsifier is selected from: any one or two or more of phenethyl phenol formaldehyde resin polyoxyethylene ether, phenethyl phenol polyoxyethylene polypropylene-based ether, ethylene oxide-propylene oxide block copolymer, alkylaryl polyoxypropylene polyoxyethylene ether, fatty acid polyoxyethylene ether sulfosuccinic acid monoester disodium, sorbitan monooleate, sorbitan fatty acid ester polyoxyethylene ether, fatty alcohol-ethylene oxide condensate and polyoxyethylene fatty acid ester are mixed according to any proportion to obtain the mixture.
In the above technical scheme, the disintegrating agent is selected from: any one or two or more of ammonium sulfate, urea, succinic acid, sodium bicarbonate and aluminum chloride in any proportion.
In the above technical solution, the binder is selected from: one or more of dextrin, methylcellulose and polyvinylpyrrolidone, and optionally mixing.
In the above technical solution, the thickener is selected from: any one, two or more of organic bentonite, xanthan gum, hydroxyethyl cellulose, aluminum metasilicate and gas-phase white carbon black are mixed according to any proportion.
In the above technical scheme, the oil phase medium is selected from: one or more of corn oil, rapeseed oil, soybean oil, sunflower oil, peanut oil, methyl oleate, turpentine and methyl esterified soybean oil.
In the above technical solution, the carrier is selected from: any one, two or more of kaolin, clay, diatomite, white carbon black, attapulgite, starch and light calcium carbonate are mixed according to any proportion.
The invention also provides application of the ternary compound pesticide composition containing glyphosate in preventing and killing annual or perennial gramineae and broadleaf weeds in glyphosate-tolerant transgenic corn.
In the technical scheme, when the ternary compound pesticide composition containing the glyphosate is used for preventing and killing annual or perennial gramineae and broadleaf weeds, the using method is as follows: diluting with water 300-1000 times, and spraying.
In the technical scheme, annual or perennial grasses and broadleaf weeds are characterized by comprising barnyard grass, dog tail grass, alopecuroide, gooseberry, crab grass, quinoa, galium, nutgrass galingale rhizome, wild oat, chickweed, abutilon, crape, corn poppy, polygonum, black nightshade, cocklebur, field bindweed, alternanthera philoxeroides, duck toe grass, field horsetail, amaranth, acanthopanax and the like.
The pesticide composition can effectively solve the problem of malignant weeds in glyphosate-tolerant transgenic corn fields, the weeds generate resistance after long-time use of conventional pesticides, and excessive use of the pesticide composition not only increases the cost of application, aggravates environmental pollution, but also can cause phytotoxicity to crops. The invention effectively solves the problem of weed resistance by compounding glyphosate, rimsulfuron and bromoxynil octanoate or methyl oxazinate, reduces the dosage, reduces the application cost, has good environmental safety, and has the following characteristics compared with the prior art:
(1) The weed killing spectrum is enlarged. The invention can prevent and remove gramineae weeds and broadleaf weeds at the same time, and has excellent effect on malignant weeds which are difficult to prevent and remove.
(2) Delay the development of resistance. The ternary combination has obvious synergistic effect due to different action mechanisms, and is thoroughly weeding, and meanwhile, weeds are not easy to generate drug resistance.
(3) The safety is good. The pesticide composition disclosed by the invention is safe to glyphosate-resistant transgenic corn, short in residual time in soil, safe to aftercrop crops, and capable of further reducing the dosage of the compounded synergistic effect and reducing the risk of phytotoxicity.
Detailed Description
The following detailed description of the technical scheme of the present invention is provided, but the present invention is not limited to the following descriptions:
the invention is illustrated below with reference to specific examples.
Formulation example 1:32% glyphosate-rimsulfuron-methyl oxazin methyl wettable powder
30% of glyphosate, 1.5% of rimsulfuron, 0.5% of methyl oxazin, 5% of sodium methylenenaphthalene sulfonate, 1% of sodium dodecyl sulfate and 100% of clay.
Formulation example 2:49% glyphosate-rimsulfuron-methyl oxazin methyl wettable powder
45% of glyphosate, 2.5% of rimsulfuron, 1.5% of methyl oxazin, 6% of lignosulfonate, 1.5% of alkylphenol polyoxyethylene ether formaldehyde condensate sulfate and the balance of diatomite to 100%.
Formulation example 3:60% glyphosate-rimsulfuron-methyl oxazin methyl wettable powder
55% of glyphosate, 3% of rimsulfuron, 2% of methyl oxazin, 8% of polycarboxylate, 2% of nekal BX and diatomite which are complemented to 100%.
Formulation example 4:37% glyphosate-rimosulfon Longqin methyl oxalate water dispersible granule
35% of glyphosate, 1.5% of rimsulfuron, 0.5% of methyl oxazin, 7% of polycarboxylate, 2% of alkyl sulfonate, 3% of urea, 0.5% of polyvinylpyrrolidone and 100% of kaolin.
Formulation example 5:54% glyphosate-rimosulfon Longqin methyl oxalate water dispersible granule
50% of glyphosate, 2.5% of rimsulfuron, 1.5% of methyl oxazin, 7.5% of alkylphenol ethoxylate formaldehyde condensate sulfate, 1.8% of sodium dodecyl sulfate, 4% of urea, 1% of dextrin and 100% of kaolin.
Formulation example 6:60% glyphosate-rimosulfon Longqin methyl oxalate water dispersible granule
55% of glyphosate, 3% of rimsulfuron, 2% of methyl oxazinate, 8.2% of naphthalene sulfonic acid formaldehyde condensate sodium salt, 1.8% of sodium dodecyl sulfate, 5% of urea, 1% of dextrin and 100% of kaolin.
Formulation example 7:36.5% glyphosate-rimosulfone Longxin acyl bromoxynil oil suspension
30% of glyphosate, 1.5% of rimsulfuron, 5% of bromoxynil octanoate, 12% of polyoxyethylene phenethyl phenol formaldehyde resin, 2% of alkylphenol ethoxylates, 0.65% of organic bentonite and the balance of methyl-esterified soybean oil to 100%.
Formulation example 8:39.5% glyphosate-rimosulfone Longxin acyl bromoxynil oil suspension
30% of glyphosate, 1.5% of rimsulfuron, 8% of bromoxynil octanoate, 10% of phenethyl phenol polyoxyethylene polypropylene ether, 3% of fatty amine polyoxyethylene ether, 0.75% of organic bentonite and 100% of methyl-esterified soybean oil.
Formulation example 9:37% glyphosate-rimosulfon Longxin acyl bromoxynil oil suspending agent
30% of glyphosate, 2% of rimsulfuron, 5% of bromoxynil octanoate, 12% of ethylene oxide-propylene oxide block copolymer, 2% of fatty acid polyoxyethylene ester, 0.8% of organic bentonite and 100% of methyl oleate.
Formulation example 10:40% glyphosate-rimosulfon Longxin acyl bromoxynil oil suspending agent
30% of glyphosate, 2% of rimsulfuron, 8% of bromoxynil octanoate, 10% of alkylaryl polyoxypropylene polyoxyethylene ether, 3% of glycerin fatty acid ester polyoxyethylene ether, 0.5% of organic bentonite and the balance of methyl oleate to 100%.
Formulation example 11:32% glyphosate-rimsulfuron-methyl oxazin methyl ester oil suspending agent
30% of glyphosate, 1.5% of rimsulfuron, 0.5% of methyl oxazin, 13% of fatty acid polyoxyethylene ether sulfosuccinic acid monoester disodium, 2% of fatty amine polyoxyethylene ether, 0.65% of organic bentonite and the balance of methyl oleate to 100%.
Formulation example 12:32.5% glyphosate-rimsulfuron-methyl oxazin methyl ester oil suspending agent
30% of glyphosate, 1.5% of rimsulfuron, 1% of methyl oxazin, 14% of sorbitan monooleate, 2.5% of alkylphenol ethoxylates, 0.5% of organic bentonite and the balance of methyl-esterified soybean oil to 100%.
Formulation example 13:32.5% glyphosate-rimsulfuron-methyl oxazin methyl ester oil suspending agent
30% of glyphosate, 2% of rimsulfuron, 0.5% of methyl oxazinate, 10% of fatty alcohol-ethylene oxide condensate, 4% of polyoxyethylene fatty acid ester, 3% of polycarboxylate, 0.25% of fumed silica, 0.5% of organic bentonite and the balance of methyl oleate to 100%.
Formulation example 14:33% glyphosate-rimsulfuron-methyl oxazin methyl ester oil suspending agent
30% of glyphosate, 2% of rimsulfuron, 1% of methyl oxazin, 10% of fatty alcohol-ethylene oxide condensate, 4% of polyoxyethylene fatty acid ester, 3% of polycarboxylate, 0.2% of fumed silica, 0.6% of organic bentonite and the balance of methyl-esterified soybean oil to 100%.
Meanwhile, the inventors found that the main performance indexes of the oil suspension agent of the preparation example 13 and the preparation example 14 are significantly better than those of the conventional oil suspension preparation, see table 1:
table 1 performance index of formulation examples 13 and 14
As can be seen from Table 1, the performance indexes of preparation examples 13 and 14 are good, unlike the conventional oil suspension, delamination, bottoming, etc. easily occur in 2 years of storage.
Application example one: evaluation of Combined action
In order to verify that the ternary combination of glyphosate, rimsulfuron and bromoxynil octanoate or the ternary combination of glyphosate, rimsulfuron and methyl zincate has a good synergistic effect, the inventor uses a room-temperature pot to perform a weeding effect test and evaluate the combined effect.
Test target: grass family heterograss crabgrass and broadleaf weed amaranth;
test agent: the same auxiliary agent and oil phase medium are used for respectively preparing glyphosate, rimsulfuron, bromoxynil octanoate and methyl oxazin into oil suspending agent single agents with the active ingredient content of 20 percent, and the 20 percent glyphosate oil suspending agent is diluted into 75g ai/ha, 150g ai/ha and 300g ai/ha by adding water; diluting 20% rimsulfuron oil suspension with water into 2.5g ai/ha, 5g ai/ha, 10g ai/ha; diluting 20% bromoxynil octanoate oil suspension into 20g ai/ha, 40g ai/ha and 80g ai/ha; diluting 20% methyl oxazin oil suspension into 0.625g ai/ha, 1.25g ai/ha and 2.5g ai/ha by adding water; blank control solution: the same auxiliary agent and oil phase medium are used for supplementing and preparing a sample without active ingredients, and then water is added for dilution according to 300 times of the minimum dilution multiple in the concentration.
The test method comprises the following steps: the activity of the mixed medicament on crabgrass and amaranthus retroflexus is checked by adopting a Colby method, a plastic pot with the height of 6cm and the diameter of 9cm is filled with quantitative soil, 20 seeds of weeds to be tested are uniformly sown in the plastic pot, 0.5-1cm of fine soil is covered, the seeds are placed at room temperature (about 20 ℃) for culture, the prepared raw medicament solution is compounded and diluted into a medicinal liquid with a certain concentration gradient, when the weeds grow to 2-4 leaf stages, the stem and leaf spraying treatment is carried out, each pot sprays 1ml of medicinal liquid, each treatment is repeated for 4 times, and a blank solution is used as a contrast. The treated test material is placed in room temperature for culture, the growth condition of weeds is observed regularly, the victim symptoms and the growth inhibition condition of target weeds are visually detected after 15 days, the fresh weight of the plant is weighed, and the fresh weight inhibition rate (%) is calculated.
Control effect (%) = (control fresh weight-treated fresh weight)/control fresh weight×100
The action evaluation method evaluates the combined action mode (NY/T1155.7-2006) of the herbicide according to the Colby method, and the formula is as follows: e (E) 0 ＝X+Y+Z 1 Or Z is 2 。
Wherein X is the fresh weight inhibition rate of glyphosate to target weeds in a certain dosage unit and is the percentage of control; y is the fresh weight inhibition rate of rimsulfuron to target weeds in a certain dosage unit, and the fresh weight inhibition rate is the percentage of control; z is Z 1 Fresh weight inhibition rate of bromoxynil octanoate to target weeds in a certain dosage unit is the percentage of control; z is Z 2 The fresh weight inhibition rate of the oxazin methyl ester to target weeds in a certain dosage unit is the percentage of the control; e (E) 0 Is the theoretical value of three effective components for inhibiting weeds; e is the actual measurement value of weed inhibition by three effective components, when E 0 E > 10%, is synergistic; e (E) 0 -E < -10% is antagonism; e (E) 0 E is an addition between.+ -. 10%.
TABLE 2 herbicidal Activity of four active ingredients in different proportions on crabgrass
As can be seen from Table 2, the ternary combination of glyphosate, rimsulfuron and bromoxynil octanoate or the ternary combination of glyphosate, rimsulfuron and methyl zincate has a good synergistic effect on the control effect of crabgrass.
TABLE 3 herbicidal Activity of four active ingredients in different ratios on Amaranthus retroflexus
As can be seen from Table 3, the ternary combination of glyphosate, rimsulfuron and bromoxynil octanoate or the ternary combination of glyphosate, rimsulfuron and methyl zincate has a good synergistic effect on the control effect of amaranth retroflexus.
Application example two: glyphosate-rimosulfon Longxin acyl bromoxynil or methyl zincate prevention and control glyphosate-tolerant transgenic corn field weed field efficacy test
Prevention and treatment agent: formulation examples 1-14
Control agent: 41% glyphosate isopropylamine brine agent
25% rimsulfuron water dispersible granule
25% bromoxynil octanoate emulsifiable concentrate
5% oxazin methyl ester emulsifiable concentrate
Clear water control
The using method comprises the following steps: adding 30kg of water per mu, and uniformly spraying stems and leaves;
time of application: spraying stems and leaves for 1 time in 2-4 leaf stage of field weeds;
the investigation method comprises the following steps: the prevention effect of crabgrass and amaranthus retroflexus is 15 days and 30 days after the investigation;
the calculation method comprises the following steps:
control effect (%) = (fresh weight of fresh water control group-fresh weight of treatment group)/fresh weight of fresh water control group×100
Table 4 test of efficacy of the formulated composition against corn field weeds
As can be seen from Table 4, the ternary combination of glyphosate and rimsulfuron Longxin acyl bromoxynil or methyl zincate has very good control effect on corn field mixed crab grass and amaranth, and the efficacy is obviously better than that of single dosage, and the inventor finds that the compound combination has good control effect on barnyard grass, dog tail grass, common fennel, gooseberry, herba chenopodii, galium aparine, nutgrass galingale rhizome, wild oat, chickweed, abutilon, crataegus pinnatifida, corn poppy, polygonum, black nightshade, cocklebur, field inula flower, alligator alternanthera, equisetum arvense, thorn and the like in experiments
The foregoing examples are merely illustrative of the technical concept and technical features of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the essence of the present invention should be included in the scope of the present invention.
Claims (10)
1. The ternary compound pesticide composition containing glyphosate comprises the active ingredients of A, B and C, and is characterized in that: a is glyphosate, B is rimsulfuron, C is any one of bromoxynil C1 octanoate or methyl C2 oxazin.
2. The ternary formulated pesticide composition of claim 1, wherein: the total weight of the active ingredients accounts for 31.1-85% of the total weight of the ternary compound pesticide composition, and is preferably 31.7-68%.
3. The ternary formulated pesticide composition of claim 1, wherein: the compound weight ratio of the active ingredients is A: b: c1/c2= (30-65): (1-5): (4 to 15)/(0.1 to 5), preferably (30 to 55): (1.5-3): (5-10)/(0.2-2).
4. The ternary formulated pesticide composition of claim 1, wherein: the pesticide composition is prepared from wettable powder, water dispersible granules and an oil suspending agent, and is preferably an oil suspending agent.
5. The ternary formulated pesticide composition of claim 4, wherein: when the pesticide composition is wettable powder, the pesticide composition comprises the following components in percentage by weight: 30-55% of glyphosate, 1.5-3% of rimsulfuron, 0.2-2% of methyl oxazin, 3-10% of dispersing agent, 1-3% of wetting agent and the balance of carrier to 100%.
6. The ternary formulated pesticide composition of claim 4, wherein: when the pesticide composition is in the form of water dispersible granules, the pesticide composition comprises the following components in percentage by weight: 30 to 55 percent of glyphosate, 1.5 to 3 percent of rimsulfuron, 0.2 to 2 percent of methyl oxazin, 3 to 10 percent of dispersing agent, 1 to 3 percent of wetting agent, 0.5 to 5 percent of disintegrating agent, 0.5 to 1 percent of adhesive and the balance of carrier to 100 percent.
7. The ternary formulated pesticide composition of claim 4, wherein: when the pesticide composition is in the form of an oil suspending agent, the pesticide composition comprises the following components in percentage by weight: 30 to 35 percent of glyphosate, 1.5 to 2 percent of rimsulfuron, 5 to 10 percent of bromoxynil octanoate or 0.5 to 1.5 percent of methyl oxazinate, 3.5 to 15 percent of emulsifier, 1 to 3 percent of dispersing agent and 0.5 to 2 percent of thickening agent, and the oil phase medium is complemented to 100 percent.
8. Use of a ternary formulated pesticide composition containing glyphosate as claimed in any one of claims 1 to 7 for combating annual or perennial grasses and broadleaf weeds in glyphosate tolerant transgenic maize.
9. The use of claim 8, wherein the ternary formulated pesticide composition containing glyphosate is used for controlling annual or perennial grasses and broadleaf weeds by the following method: diluting with water 300-1000 times, and spraying.
10. The use according to claim 8, wherein said annual or perennial grasses and broadleaf weeds comprise barnyard grass, dog tail grass, myrtle, gooseberry, crab grass, quinoa, galium, nutgrass galingale, wild oat, chickweed, abutilon, crape, corn poppy, polygonum, black nightshade, cocklebur, field bindweed, allium macrostemon, duck toe grass, horsetail, amaranth, etc.
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