CN103168779A - Weedicide composition containing fine fluazifop-butyl and clopyralid - Google Patents
Weedicide composition containing fine fluazifop-butyl and clopyralid Download PDFInfo
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- CN103168779A CN103168779A CN201110433943XA CN201110433943A CN103168779A CN 103168779 A CN103168779 A CN 103168779A CN 201110433943X A CN201110433943X A CN 201110433943XA CN 201110433943 A CN201110433943 A CN 201110433943A CN 103168779 A CN103168779 A CN 103168779A
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- clopyralid
- efficient fluazifop
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Abstract
The invention relates to the technical field of pesticide and discloses a rape field compound weedicide. The rape field compound weedicide comprises two active ingredients, namely fine fluazifop-butyl and clopyralid, wherein the weight ratio of the two active ingredients is 1:32 to 32:1, and mass percentage of the two active ingredients is 0.5-90% of the compound weedicide. The weedicide composition has the advantages of low toxicity, weak sensitization, less poison to people and livestock, obvious compound synergic effect, broad herbicide controlling spectrum and the like, the safety to crop and the environment is high, no influence is produced on succession crop, and rape field gramminaceous and broad leaf weeds can be effectively prevented and killed off.
Description
Technical field
The invention belongs to the plant protection field, relate to a kind of herbicidal composition for the control rape field weed, be specifically related to a kind of herbicidal composition that contains efficient fluazifop and clopyralid, can Controlling Weeds in Rape Fields field broad leaved weed and grassy weed.
Background technology
Rape is the important edible oil of China and protein feed source, occupies first of five large oil crop, have strong adaptability, purposes extensively, the economic worth high.The rapeseed cultivation area accounts for more than 40% of the national oil crop gross area, and its output accounts for more than 30% of national oil crop gross yield, and rapeseed oil accounts for 30%~40% of national edible oil total amount.In recent years, along with the adjustment of Industry Structure and constantly breeding of high yield and high quality rape variety, the rape industry is faced with unprecedented opportunity to develop.Yet China's various places rape field weed kind is more, and is more serious to the growth of rape extent of injury.Growth of rape can cause nourishing and growing to the competition of water, fertilizer, gas, heat, light because of weeds and be suppressed, thereby causes it to bloom because nutrient accumulation is not enough at generative growth phase and ripening rate reduces, and production loss is serious.Simultaneously, weeds can also increase the probability that damage by disease and insect infects as the host of Rape Pests and germ, thereby have increased the weight of the generation of rape damage by disease and insect.Weeds have affected the economic benefit of output, quality and the rapeseed cultivation of rape very harmfully.In addition, along with spread and the use of all kinds weed killer herbicide, increasing weeds kind has produced resistance in various degree to weed killer herbicide.In the most of oil field of vegetables, grassy weed and broad leaved weed occur simultaneously now, and the existing market herbicide used in rape field seldom has the weed killer herbicide product of preventing and kill off simultaneously grassy weed and broad leaved weed.
Efficient fluazifop is a kind of aryloxy group phenoxy propionic acid class weed killer herbicide, process as cauline leaf, can be absorbed by the cauline leaf of plant, conducting tissue by xylem, phloem is transmitted to growing point and meristematic tissue, suppress weeds fatty acid by the inhibition to acetyl-CoA carboxylase synthetic, suppress the growth of weeds joint, root, stem, bud, make to be subjected to medicine crop withered death gradually, can be used for broad leaf crop, effectively prevent and treat multiple grassy weed.
Clopyralid is synthetic hormone class weed killer herbicide, mainly absorb by cauline leaf, through phloem and xylem conduction, be accumulated in growing point, make plant produce excessive ribonucleic acid, promote that meristematic tissue excessively breaks up, cause root, stem, leaf growth deformity, nutrient consumption is excessive, and vascular bundle transporting function is obstructed, and causes that weeds are dead.
In actual use, efficient fluazifop has special efficacy to grassy weeds such as the barnyard grass between Rapeseed Field, amur foxtails, but substantially invalid to broad leaved weed; Clopyralid can be prevented and kill off multiple broad leaved weed, as corn sow thistle, common vetch, field thistle etc., but substantially invalid to grassy weed.Therefore, need efficient fluazifop, clopyralid are carried out rational mixture, to reach synergy, reduce consumption, to enlarge the purpose that herbicide is composed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of technical scheme of Rapeseed Field complex weedicide, make it have wider herbicide spectrum, can reach by a drug effect of Controlling Weeds in Rape Fields field broad leaved weed and grassy weed simultaneously, and can reduce the medicament usage amount and to crop safety.
The technical solution used in the present invention is, a kind of Rapeseed Field compound herbicide composition, it is characterized in that described active ingredient is efficient fluazifop (Haloxyfop-P-methyl), other titles: fluazifop-p-butyl, chemical name is (R)-2-[4-(5-trifluoromethyl-2-pyridine oxygen base) phenoxy group] butyl propionate, structural formula is:
And clopyralid (Clopyralid), chemical name is 3,6-dichloropyridine-2-carboxylic acid, structural formula is:
Both weight ratio is efficient fluazifop: clopyralid=1: 32~32: 1, be preferably 1: 15~15: 1, and be more preferably 2: 1; Weight percentage in herbicidal composition is 0.5~80%.
According to different use needs or applying environment, herbicidal composition of the present invention can be prepared into any formulation that allows on multi-form agricultural by conventional at present pesticide producing mode, and herbicidal composition most preferred dosage form of the present invention is missible oil.
Described herbicidal composition, missible oil are that active ingredient is dissolved in solvent, then add appropriate emulsifier to obtain transparent and homogeneous liquid.Emulsifier can be the compound of one or more anion and non-ionic surface active agent, non-ionic surface active agent such as alkylphenol polyoxyethylene class, Ben-zylphenol Polyoxyethyl Ether class, benzylbiphenyl phenol polyethenoxy polyoxypropylene ethers, phenethyl phenol polyethenoxy ether and similar kind, fatty alcohol-polyoxyethylene ether and analog, fatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc.Anion surfactant such as alkylbenzenesulfonate, alkyl benzene sulfonate calcium salt, alkyl sulfonic acid alkylnaphthalene sulfonate, aliphatic alcohol sulfate, alkyl phosphate and similar kind thereof, polyoxyethylene carboxylate phosphate, alkylphenol polyoxyethylene phosphate and similar kind etc.Solvent can be one or more in the organic solvents such as dimethylbenzene, acetone, carrene, n-hexane, methyl alcohol, acetonitrile, methylated vegetable oil, turpentine-based vegetable oil.
Described herbicidal composition, wetting powder makes active ingredient mixture and filler, dispersant, wetting agent, adjuvant through pulverizing.Dispersant can be one or more in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Filler can be one or more in ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.Can add as required required adjuvant to comprise stabilizing agent, bleeding agent, spreader-sticker, foam inhibitor, anticaking agent, synergist etc.
Described herbicidal composition; water dispersible granules be with the auxiliary agents such as active ingredient and filler, wetting agent, dispersant, interleaving agent, disintegrant, stabilizing agent, adhesive after crushed with quantitative water; add in kneader simultaneously and mediate; make plastic material; at last material is sent into Squeezinggranulator; carry out granulation, obtain the water dispersible granules product by dry, screening.Wherein, dispersant can be one or more in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Disintegrant can be one or more in ammonium sulfate, urea, sucrose, glucose; Adhesive can be one or more in diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family; Filler can be one or more in diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.
Described herbicidal composition, granula are the discrete particles shape products of being made by active ingredient, carrier and auxiliary agent.In granula, active constituent content is generally 1%~5% or 10% left and right, and minority also surpasses 20%.Carrier namely dilutes the inert substance that agricultural chemicals is used, one or more in following carrier are arranged, as the large soya bean stem meal of plant, acorn, corncob cellulose, rice husk, sawdust powder etc., the sulphur of mineral substance, attapulgite, potter's clay, sepiolite, kaolin, saponite, talcum, diatomite, float stone etc., vectorette's white carbon, precipitated calcium carbonate etc.Auxiliary agent is one or more in following material, mainly contain: adhesive such as starch, dextrin, gum Arabic, polyvinylpyrrolidone, carboxymethyl cellulose etc., help disintegrant such as sulphur ammonium, calcium chloride, salt, urea, bentonite etc., dispersant such as natural soap chitin, pull open powder, dispersant N, dispersant NNO etc., other auxiliary agent also has adsorbent, lubricant, stabilizing agent, thinner etc.
Herbicidal combinations of the present invention is mainly used in management of weeds in Rapeseed Field, as corn sow thistle, common vetch, field thistle, clearvers, little lamb's-quarters, hard grass, amur foxtail, Alopecurus, barnyard grass, annual bluegrass, Lin's grass, moleplant seed, wild oat etc., but be not limited to above-mentioned weeds.
The present invention possesses following beneficial effect:
Composition pesticide provided by the invention, its synergy shows obvious synergistic effect in the certain proportion scope, the herbicidal effect of composition is significantly improved than single dose, reduce the usage amount of agricultural chemicals unit are, be beneficial to and reduce pesticide cost and on the impact of ecotope, it applies huge Social benefit and economic benefit.
This herbicidal composition adopts uses that be mixed of efficient fluazifop and clopyralid, and these two kinds of active ingredient mechanism of action are different, compose and more excellent synergy control efficiency so have wider herbicide.Clopyralid has made up the efficient fluazifop shortcoming low to the broad leaved weed preventive effect, only need a drug just Controlling Weeds in Rape Fields field broad leaved weed and grassy weed effectively, during use to growth of rape safety, can also delay or overcome the drug-fast generation of rape field weed, be conducive to agricultural synthesis and administer.
Embodiment
Embodiment by the following examples is described in further detail foregoing of the present invention again, but this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following instance.Do not breaking away from the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made all should comprise within the scope of the invention.
Formulation examples 1:10% efficient fluazifop clopyralid missible oil (active component accounts for preparation gross mass 10%)
Take active component, with adding other component after dissolution with solvents, stir, namely get described missible oil.
Formulation examples 2:15% efficient fluazifop clopyralid missible oil (active component accounts for preparation gross mass 15%)
Take active component, with adding other component after dissolution with solvents, stir, namely get described missible oil.
Formulation examples 3:20% efficient fluazifop clopyralid wetting powder (active component accounts for preparation gross mass 20%)
Take active component, add above-mentioned auxiliary element, mix by high speed jet mill and pulverize, namely get described wetting powder.
Formulation examples 4:60% efficient fluazifop clopyralid wetting powder (active component accounts for preparation gross mass 60%)
Take active component, add above-mentioned auxiliary element, mix by high speed jet mill and pulverize, namely get described wetting powder.
Formulation examples 5:21% efficient fluazifop clopyralid water dispersible granules (active component accounts for preparation gross mass 21%)
Take active component, add above-mentioned auxiliary element, mix by high speed jet mill and pulverize, add water and mediate granulation, after oven dry, screening, namely get described water dispersible granules.
Formulation examples 6:9% efficient fluazifop clopyralid granula (active component accounts for preparation gross mass 9%)
Take active component, add above-mentioned auxiliary element, mix by high speed jet mill and pulverize, add water and mediate granulation, after oven dry, screening, namely get described granula.
Give birth to and survey embodiment:
Controlling Weeds in Rape Fields field weed field control effectiveness test I:
1, test is processed
(1) 15% efficient fluazifop clopyralid missible oil (1: 32) 50g/ mu
(2) 15% efficient fluazifop clopyralid missible oil (1: 8) 50g/ mus
(3) 15% efficient fluazifop clopyralid missible oil (1: 2) 50g mus
(4) 15% efficient fluazifop clopyralid missible oil (2: 1) 50g/ mus
(5) 15% efficient fluazifop clopyralid missible oil (8: 1) 50g/ mus
(6) 15% efficient fluazifop clopyralid missible oil (32: 1) 50g/ mus
(7) 75% clopyralid soluble granula 10g/ mus
(8) 15% efficient fluazifop missible oil 50g/ mus
8 processing are established in test, repeat for 4 times, process the residential quarter for totally 32,20 square metres of every processing residential quarter areas, and random district group is arranged.(1)~(6) clopyralid efficient fluazifop missible oil (Shandong Binnong Technology Co., Ltd.'s production) is reagent agent, and 75% clopyralid soluble granula and 15% efficient fluazifop missible oil are the contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.The field main weeds has: amur foxtail, wild oat, barnyard grass, corn sow thistle, common vetch, field thistle etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation rape is estimated reagent agent to the safety of rape.
(2) herbicidal effect: every residential quarter is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculates weeds strain preventive effect.
(3) result of the test
Safety: the dispenser " Invest, Then Investigate ", chemicals treatment district rape plant height, Ye Se and blank district are basically identical, show that reagent agent (1)~(6) efficient fluazifop clopyralid is all to rape safety.
Herbicidal effect: see Table I.
30 days various weed control efficacies after the Table I medicine
Annotate: (1) 15% efficient fluazifop clopyralid missible oil (1: 32)
(2) 15% efficient fluazifop clopyralid missible oil (1: 8)
(3) 15% efficient fluazifop clopyralid missible oil (1: 2)
(4) 15% efficient fluazifop clopyralid missible oil (2: 1)
(5) 15% efficient fluazifop clopyralid missible oil (8: 1)
(6) 15% efficient fluazifop clopyralid missible oil (32: 1)
(7) 75% clopyralid soluble granulas
(8) 15% efficient fluazifop missible oil
by Table I as can be known, the efficient fluazifop clopyralid missible oil of different proportionings to common weed strain preventive effect between 80.17~97.55%, all be better than contrasting the preventive effect (63.02%) of medicament 75% clopyralid soluble granule 10g/ mu and the preventive effect (59.33%) of 15% efficient fluazifop missible oil 50g/ mu, wherein efficient fluazifop and clopyralid weight ratio be 1: 2 and 8: 1 all remarkable to Rapeseed Field common weed preventive effect, weeds strain preventive effect is all more than 90%, and efficient fluazifop: clopyralid=2: 1 o'clock preventive effects are especially up to more than 97%.Efficient fluazifop and clopyralid weight ratio have preventive effect to the Rapeseed Field common weed in 1: 32~32: 1 scopes, the lasting period substantially can control the Rapeseed Field crop smothering in whole vegetative period, and this herbicidal composition was to rape safety greater than one month.
Controlling Weeds in Rape Fields field weed field control effectiveness test II:
1, test is processed
(1) 3% efficient fluazifop clopyralid missible oil (2: 1) 250g/ mu
(2) 15% efficient fluazifop clopyralid missible oil (2: 1) 50g/ mus
(3) 60% efficient fluazifop clopyralid missible oil (2: 1) 12.5g/ mus
3 processing are established in test, repeat for 4 times, process the residential quarter for totally 12,20 square metres of every processing residential quarter areas, and random district group is arranged.(1)~(3) efficient fluazifop clopyralid missible oil (Shandong Binnong Technology Co., Ltd.'s production) is reagent agent, and every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.The field main weeds has corn sow thistle, common vetch, field thistle, hard grass, amur foxtail, barnyard grass etc.
2, pilot project and method
Herbicidal effect: every residential quarter is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculates weeds strain preventive effect.
Result of the test: herbicidal effect sees Table II.
30 days various weed control efficacies after the Table II medicine
Annotate: (1) 3% efficient fluazifop clopyralid missible oil (2: 1)
(2) 15% efficient fluazifop clopyralid missible oil (2: 1)
(3) 60% efficient fluazifop clopyralid missible oil (2: 1)
By Table II as can be known, when the weight ratio of efficient fluazifop and clopyralid is 2: 1, the efficient fluazifop clopyralid missible oil of different content to common weed strain preventive effect all more than 90%, show that when efficient fluazifop and clopyralid weight ratio are optimal proportion, the herbicidal composition of different activities component content all has significant preventive effect to weeds.
Living test is tested result and is shown, after efficient fluazifop and clopyralid are composite, two active component ratios are between 32: 1~1: 32, weight percentage in herbicidal composition is in 0.5~80% scope, compare with single dose separately, preventive effect to weeds is significantly improved, and has reached the purpose of preventing and kill off simultaneously broad leaved weed and grassy weed.
Claims (5)
1. a Herbicidal composition of rape field, is characterized in that this herbicidal composition contains efficient fluazifop and two kinds of active components of clopyralid and usual auxiliaries, and wherein the weight ratio of efficient fluazifop and clopyralid is 1:32-32:1.
2. herbicidal composition according to claim 1, is characterized in that the weight ratio of active component efficient fluazifop and clopyralid is preferably 1:15-15:1.
3. according to claim 1 with 2 described herbicidal compositions, is characterized in that the mass percent of active component in herbicidal composition is 0.5-80%.
4. herbicidal composition according to claim 1, can be mixed with the upper any formulation that allows of agricultural when it is characterized in that described composition practical application.
5. according to claim 1-4 described herbicidal compositions, is characterized in that the weeds for Controlling Weeds in Rape Fields Tanaka.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104642320A (en) * | 2013-11-15 | 2015-05-27 | 南京华洲药业有限公司 | Mixed herbicide containing aminopyralid and high-efficiency fluazifop-butyl |
CN108703142A (en) * | 2018-08-08 | 2018-10-26 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and needle nursery herbicides special |
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CN1663383A (en) * | 2005-02-06 | 2005-09-07 | 江苏溧化化学有限公司 | Herbicide for rape field stem and leaf |
CN1784968A (en) * | 2004-12-09 | 2006-06-14 | 四川绵阳利尔化工有限公司 | Herbicide composition used in rape fields |
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2011
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WO2003030642A1 (en) * | 2001-10-03 | 2003-04-17 | Syngenta Participations Ag | Synergistic herbisidal compositions fomesafen |
CN1784968A (en) * | 2004-12-09 | 2006-06-14 | 四川绵阳利尔化工有限公司 | Herbicide composition used in rape fields |
CN1663383A (en) * | 2005-02-06 | 2005-09-07 | 江苏溧化化学有限公司 | Herbicide for rape field stem and leaf |
Non-Patent Citations (3)
Title |
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F.L.DIXON ETAL: "The tolerance of young trees to applications of clopyralid alone and in mixture with foliar-acting herbicides", 《FORESTY》 * |
IAN WILLOUGHBY ETAL: "The tolerance of newly emerged broadleaved tree seedliings to the herbicides clopyralid,cycloxydim and metazachlor", 《FORESTRY》 * |
ROBERT E . BLACKSHAW ETAL: "Combined Postemergence Grass and Broadleaf Weed Control in Canola(Brassica napus)", 《WEED TECHNOLOGY》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104642320A (en) * | 2013-11-15 | 2015-05-27 | 南京华洲药业有限公司 | Mixed herbicide containing aminopyralid and high-efficiency fluazifop-butyl |
CN108703142A (en) * | 2018-08-08 | 2018-10-26 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and needle nursery herbicides special |
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Application publication date: 20130626 |