CN103636647A - Topramezone-rimsulfuron-containing weeding composition - Google Patents
Topramezone-rimsulfuron-containing weeding composition Download PDFInfo
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- CN103636647A CN103636647A CN201310530836.8A CN201310530836A CN103636647A CN 103636647 A CN103636647 A CN 103636647A CN 201310530836 A CN201310530836 A CN 201310530836A CN 103636647 A CN103636647 A CN 103636647A
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- rimsulfuron
- topramezone
- azoles humulone
- benzene azoles
- weeding composition
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Abstract
The invention discloses a topramezone-rimsulfuron-containing weeding composition. The topramezone-rimsulfuron-containing weeding composition comprises topramezone and rimsulfuron as active ingredients and the balance an herbicide assistant. A mass part ratio of topramezone to rimsulfuron in the topramezone-rimsulfuron-containing weeding composition is in a range of 1: 5 to 5: 1, and the total mass of topramezone and rimsulfuron is 3-75% that of the topramezone-rimsulfuron-containing weeding composition. According to application demands, the topramezone-rimsulfuron-containing weeding composition can be processed to form a dispersible oil suspending agent, a suspending agent, wettable powder or water dispersible granules suitable for agricultural application, can be used for preventing and removing annual weeds in the corn field, has prevention and control effects superior to those of various single-component agents, reduces a herbicide use amount and delays production of herbicide resistance of weeds.
Description
Technical field
The present invention relates to agricultural insecticide composition, a kind of composition that contains benzene azoles humulone and rimsulfuron specifically, is that to take benzene azoles humulone and rimsulfuron be active ingredient, for control of maize field annual weed.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, and single variety weed killer herbicide is used can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.
Benzene azoles humulone is a kind of medical midbodies of para (ortho)-hydroxybenzoic acetone acid esters dual oxide enzyme inhibitor (HPPD) weed killer herbicide, it can be absorbed by the blade of weeds, root and stem, and in plant corpus Bidirectional Conduction up and down, synthesizing of remote-effects carotenoid, disturb chloroplast synthetic and function under illumination, finally cause the serious albefaction of weeds, necrosis, weeds are dead.It is the albefaction of weeds lobus cardiacus that weeds are subject to the classical symptom after poisoning.At the temperature of 20 degrees Celsius, generally at spray medicine, within 2～4 days, just can take effect.
Rimsulfuron is a kind of sulfonylurea herbicide, after weeds cauline leaf and root absorption, conducts rapidly and suppress the synthetic of weeds valine and isoleucine in plant, stops cell division, kills weeds.The susceptible weeds flavescence in latter 3 days that absorbs the drug, withered death in 1～3 week.Can effectively prevent and kill off most of broad-leaveds and grassy weed.
Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.By formulation of pesticide, screening, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of benzene azoles humulone and rimsulfuron, find that benzene azoles humulone and rimsulfuron are mixed, in certain mixed ratio scope, corn field annual weed is had to synergistic effect, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the composition pesticide of the farmland weed comprehensive regulation.
Another object of the present invention is to provide this composition pesticide for preventing and kill off corn field annual weed.
Technical scheme: for achieving the above object, the invention provides a kind of composition that contains benzene azoles humulone and rimsulfuron, active ingredient is benzene azoles humulone and rimsulfuron, and all the other are insecticides adjuvant.Benzene azoles humulone and the rimsulfuron ratio of quality and the number of copies in composition is 1:5～5:1, and benzene azoles humulone and the mass percent of rimsulfuron quality summation in composition pesticide are 3%～75%.The practical application formulation of Herbicidal combinations of the present invention is to dispersible a kind of in oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
The insecticides adjuvant using in Herbicidal combinations of the present invention comprises wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to formula requirement, are determined through simple test.
The production technology of the various application forms of Herbicidal combinations of the present invention all belongs to existing known technology, does not repeat them here.
Herbicidal combinations of the present invention, adopts and is watered the use of directed spraying method, also can adopt as required other operation techniques of the upper application of agricultural.
Herbicidal combinations of the present invention, should be used in 2～4 leaf phases of corn field annual weed in use.
Herbicidal combinations provided by the invention has following beneficial effect:
1. Herbicidal combinations provided by the invention shows obvious synergistic effect in certain ratio range, and the herbicidal effect of composition is significantly improved than each single dose, has reduced the using dosage of agricultural chemicals, has reduced cost.
2. the active ingredient mechanism of action of Herbicidal combinations provided by the invention is different, and the application of composition can delay or overcome the generation of herbicide resistance, is conducive to agricultural synthesis and administers.
Technology origin of the present invention: be further to understand the synergy that benzene azoles humulone and rimsulfuron are mixed to weeds, the inventor is mixed and has carried out formulation screening test benzene azoles humulone and rimsulfuron.
Test material: kitchen garden [Portulaca oleracea L.] (field is collected seed and preserved).
Lady's-grass [Digitaria sanguinalis (L.) Scop.] (field is collected seed and preserved).
Test apparatus: controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method: the purity that first takes certain mass is the former medicine of 97% benzene azoles humulone, the former medicine of 99% rimsulfuron, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to the object that is mixed, serial proportioning is set, each proportioning arranges 5～7 concentration gradients.According to single dose herbicide spectrum, select representative susceptible weeds seed, be cultured to 2 leaf 1 hearts standby.After selecting the weeds cauline leaf of numbering to process, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight preventive effect or strain preventive effect), then with method of least squares calculate suppress in dense EC
50(95% confidence limit), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100.
Measurement result show (in Table 1 and table 2), benzene azoles humulone and rimsulfuron, between mixed ratio 1:5～5:1, have obvious synergy or summation action.The mixed ratio of benzene azoles humulone and rimsulfuron is when 1:5, and obvious to the preventive effect synergistic effect of lady's-grass, co-toxicity coefficient reaches 141.23.The mixed ratio of benzene azoles humulone and rimsulfuron is when 1:4, and obvious to the preventive effect synergistic effect of kitchen garden, co-toxicity coefficient reaches 143.64.
Table 1, different proportioning benzene azoles humulone and rimsulfuron are measured the synergy of lady's-grass.
Table 2, different proportioning benzene azoles humulone and rimsulfuron are measured the synergy of kitchen garden.
Embodiment
The present invention describes by following specific embodiment, but the invention is not restricted to following specific embodiment.In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
FORMULATION EXAMPLE one (25% benzene azoles humulone rimsulfuron dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes 25% benzene azoles humulone rimsulfuron and dispersibles oil-suspending agent.
FORMULATION EXAMPLE two (21% benzene azoles humulone rimsulfuron wetting powder).
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make 21% benzene azoles humulone rimsulfuron wetting powder.
FORMULATION EXAMPLE three (24% benzene azoles humulone rimsulfuron suspending agent).
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 24% benzene azoles humulone rimsulfuron suspending agent.
FORMULATION EXAMPLE four (15% benzene azoles humulone rimsulfuron water dispersible granules).
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 15% benzene azoles humulone rimsulfuron water-dispersible granules in proportion.
Field control effectiveness test embodiment: the test of pesticide effectiveness of preventing and kill off corn field annual weed.
Reagent agent and dispenser dosage:
(1) 25% benzene azoles humulone rimsulfuron dispersibles oil-suspending agent (5% benzene azoles humulone 20% rimsulfuron), 1.5 grams, preparation (1#) for mu.
(2) 21% benzene azoles humulone rimsulfuron wetting powders (7% benzene azoles humulone 14% rimsulfuron), 1.3 grams, preparation (2#) for mu.
(3) 24% benzene azoles humulone rimsulfuron suspending agents (4% benzene azoles humulone 20% rimsulfuron), 1.5 grams, preparation (3#) for mu.
(4) 15% benzene azoles humulone rimsulfuron water dispersible granules (5% benzene azoles humulone 10% rimsulfuron), 0.9 gram, preparation (4#) for mu.
(5) 30% benzene azoles humulone suspending agents, 2 grams, preparation (5#) for mu.
(6) 25% rimsulfuron water dispersible granules, 1.5 grams, preparation (6#) for mu.
Dispenser period: 2～4 leaf phases of weeds, be watered rear directed spraying.
Prevent and kill off object: lady's-grass, barnyard grass, kitchen garden.
Result of the test is in Table 3.From table 3 result of the test, can find out: more than Herbicidal combinations of the present invention reaches 94.5.% to the average preventive effect of corn field annual weed.Herbicidal combinations of the present invention is significantly better than the single dose of contrast, and synergistic effect is remarkable, and quick-acting and lasting period are obviously better than single dose.
Table 3, control of maize field annual weed field control effectiveness test result.
Claims (3)
1. a Herbicidal combinations that contains benzene azoles humulone and rimsulfuron, it is characterized in that: active ingredient is benzene azoles humulone and rimsulfuron, all the other are insecticides adjuvant, benzene azoles humulone and the rimsulfuron ratio of quality and the number of copies in composition is 1:5～5:1, and benzene azoles humulone and the mass percent of rimsulfuron quality summation in composition pesticide are 3%～75%.
2. a kind of Herbicidal combinations that contains benzene azoles humulone and rimsulfuron according to claim 1, is characterized in that: its formulation is to dispersible a kind of in oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
3. a kind of Herbicidal combinations that contains benzene azoles humulone and rimsulfuron according to claim 1, is characterized in that: be applicable to prevent and kill off corn field annual weed.
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| CN201310530836.8A CN103636647A (en) | 2013-10-30 | 2013-10-30 | Topramezone-rimsulfuron-containing weeding composition |
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| CN201310530836.8A CN103636647A (en) | 2013-10-30 | 2013-10-30 | Topramezone-rimsulfuron-containing weeding composition |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105284851A (en) * | 2015-10-29 | 2016-02-03 | 江苏东宝农药化工有限公司 | Benzene thiazole oxadiazon and rimsulfuron compound herbicide |
| CN105532701A (en) * | 2015-12-21 | 2016-05-04 | 南京华洲药业有限公司 | Mixed herbicide containing topramezone and rimsulfuron and application of mixed herbicide |
| CN106135249A (en) * | 2015-04-24 | 2016-11-23 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN110856487A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Pesticide composition containing nicosulfuron, rimsulfuron and topramezone and application thereof |
| CN110856488A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Herbicide composition and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305346A (en) * | 1998-06-16 | 2001-07-25 | 巴斯福股份公司 | Herbicidal mixtures having synergistic effect |
| CN102986705A (en) * | 2012-11-30 | 2013-03-27 | 王学权 | Herbicide composition containing topramezone |
-
2013
- 2013-10-30 CN CN201310530836.8A patent/CN103636647A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305346A (en) * | 1998-06-16 | 2001-07-25 | 巴斯福股份公司 | Herbicidal mixtures having synergistic effect |
| CN102986705A (en) * | 2012-11-30 | 2013-03-27 | 王学权 | Herbicide composition containing topramezone |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106135249A (en) * | 2015-04-24 | 2016-11-23 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN105284851A (en) * | 2015-10-29 | 2016-02-03 | 江苏东宝农药化工有限公司 | Benzene thiazole oxadiazon and rimsulfuron compound herbicide |
| CN105532701A (en) * | 2015-12-21 | 2016-05-04 | 南京华洲药业有限公司 | Mixed herbicide containing topramezone and rimsulfuron and application of mixed herbicide |
| CN110856487A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Pesticide composition containing nicosulfuron, rimsulfuron and topramezone and application thereof |
| CN110856488A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Herbicide composition and application thereof |
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Application publication date: 20140319 |
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