AU764967B2 - Aqueous suspension concentrate comprising thidiazuron and ethephon - Google Patents
Aqueous suspension concentrate comprising thidiazuron and ethephon Download PDFInfo
- Publication number
- AU764967B2 AU764967B2 AU42394/99A AU4239499A AU764967B2 AU 764967 B2 AU764967 B2 AU 764967B2 AU 42394/99 A AU42394/99 A AU 42394/99A AU 4239499 A AU4239499 A AU 4239499A AU 764967 B2 AU764967 B2 AU 764967B2
- Authority
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- Australia
- Prior art keywords
- suspension concentrate
- plant
- ethephon
- thidiazuron
- suspension
- Prior art date
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- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 title claims description 18
- 239000005976 Ethephon Substances 0.000 title claims description 18
- HFCYZXMHUIHAQI-UHFFFAOYSA-N Thidiazuron Chemical compound C=1C=CC=CC=1NC(=O)NC1=CN=NS1 HFCYZXMHUIHAQI-UHFFFAOYSA-N 0.000 title claims description 16
- 239000012141 concentrate Substances 0.000 title description 14
- 239000007900 aqueous suspension Substances 0.000 title description 3
- 239000004546 suspension concentrate Substances 0.000 claims description 23
- 241000196324 Embryophyta Species 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000002562 thickening agent Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 240000002024 Gossypium herbaceum Species 0.000 claims description 6
- 235000004341 Gossypium herbaceum Nutrition 0.000 claims description 6
- 230000035613 defoliation Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 230000012010 growth Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- TVFWYUWNQVRQRG-UHFFFAOYSA-N 2,3,4-tris(2-phenylethenyl)phenol Chemical group C=1C=CC=CC=1C=CC1=C(C=CC=2C=CC=CC=2)C(O)=CC=C1C=CC1=CC=CC=C1 TVFWYUWNQVRQRG-UHFFFAOYSA-N 0.000 claims description 3
- 239000007798 antifreeze agent Substances 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- -1 defoamers Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 235000009917 Crataegus X brevipes Nutrition 0.000 claims 1
- 235000013204 Crataegus X haemacarpa Nutrition 0.000 claims 1
- 235000009685 Crataegus X maligna Nutrition 0.000 claims 1
- 235000009444 Crataegus X rubrocarnea Nutrition 0.000 claims 1
- 235000009486 Crataegus bullatus Nutrition 0.000 claims 1
- 235000017181 Crataegus chrysocarpa Nutrition 0.000 claims 1
- 235000009682 Crataegus limnophila Nutrition 0.000 claims 1
- 235000004423 Crataegus monogyna Nutrition 0.000 claims 1
- 240000000171 Crataegus monogyna Species 0.000 claims 1
- 235000002313 Crataegus paludosa Nutrition 0.000 claims 1
- 235000009840 Crataegus x incaedua Nutrition 0.000 claims 1
- YLFSVIMMRPNPFK-WEQBUNFVSA-N acrinathrin Chemical compound CC1(C)[C@@H](\C=C/C(=O)OC(C(F)(F)F)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 YLFSVIMMRPNPFK-WEQBUNFVSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 11
- 238000009472 formulation Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- 239000002837 defoliant Substances 0.000 description 4
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 241000219146 Gossypium Species 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical group CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 239000005648 plant growth regulator Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 1
- QQGRFMIMXPWKPM-UHFFFAOYSA-N 2,3,4-tributylphenol Chemical compound CCCCC1=CC=C(O)C(CCCC)=C1CCCC QQGRFMIMXPWKPM-UHFFFAOYSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010057362 Underdose Diseases 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229920004482 WACKER® Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229920000847 nonoxynol Polymers 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- KRTNITDCKAVIFI-UHFFFAOYSA-N tridecyl benzenesulfonate Chemical compound CCCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 KRTNITDCKAVIFI-UHFFFAOYSA-N 0.000 description 1
- SBXWFLISHPUINY-UHFFFAOYSA-N triphenyltin Chemical compound C1=CC=CC=C1[Sn](C=1C=CC=CC=1)C1=CC=CC=C1 SBXWFLISHPUINY-UHFFFAOYSA-N 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
Description
r/uu/ I I 2815/91 Regulation 3.2(2)
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Application Number: Lodged: Invention Title: AQUEOUS SUSPENSION CONCENTRATE COMPRISING THIDIAZURON AND ETHEPHON The following statement is a full description of this invention, including the best method of performing it known to us AQUEOUS SUSPENSION CONCENTRATE COMPRISING THIDIAZURON AND
ETHEPHON
DESCRIPTION
SThe invention relates to the field of plant growth regulators/defoliants, in particular to mixtures of thidiazuron and ethephon.
For a long time, thidiazuron and ethephon have been known as plant growth regulators/defoliants, in particular for use in crops of cotton (see, for example, The Pesticide Manual, 1 1 t h Edition, British Crop Protection' Council, Farnham, 1997, thidiazuron entry number 703, ethephon entry number 281).
DE-A-26 46 712 discloses mixtures of thidiazuron and ethephon, and a good synergistic effect for the use as defoliant in cotton is demonstrated.
However, until now such mixtures have only been used as so-called tank mixes, which means that the mixture components are admixed only shortly prior to application.
Surprisingly, it has now been found that stable, storable suspension concentrates of thidiazuron and ethephon can be prepared. Owing to the differing stability of the two substances in acidic medium, this was unexpected.
The Pesticide Manual states a storage stability in a pH range from 5 to 9 for thidiazuron, and at a pH of below 5 for ethephon.
The invention accordingly provides a stable suspension concentrate, comprising a) thidiazuron and ethephon, b) one or more surfactants, c) one or more thickeners and d) water.
o.leo .ee°° By providing the suspension concentrates according to the invention, the disadvantages of the customary tank mixes, such as insufficient dosage reliability and low handling safety, are overcome. Furthermore, the concentrates have the advantage of reduced packaging costs.
The concentrates generally have a pH of 5, preferably 2.
The active compounds used are known and commercially available; thidiazuron from AgrEvo, Frankfurt, Germany, and ethephon, for example, from Rhone-Poulenc, Lyon, France (see, for example, the pesticide manual and the literature mentioned therein).
The active compounds are generally employed in a mass ratio of S: thidiazuron:ethephon of 1:5-30, preferably 1:5-15, particularly preferably 1:8-12.
The proportion of the active compounds in the suspension concentrate is generally from 5 to 80% by weight, preferably from 15 to 60% by weight.
S
The concentrates according to the invention may comprise, as surfactant which o 20 helps to improve the dispersion properties of the particles in the solid suspension, for example a dodecyl- or tridecylbenzenesulfonate in a proportion of preferably from 0.01 to 12% by weight. Thus, it is possible to employ, for example, ®Maranil (dodecylbenzenesulfonate, Na salt) from Henkel, DOsseldorf, Germany, as paste or powder.
Suitable surfactants are furthermore polyacrylic acid derivatives, such as those which are obtainable, for example, under the trade names ®Sokalan CP 10 (BASF), the ®Geropon series (HB, DA, DG) (Rh6ne-Poulenc) or the ®Dispersant series (Rhone-Poulenc) or the ®Degapas series (Degussa, Frankfurt, Germany).
®Sokalan CP 10 is a modified Na polyacrylate having a low molecular mass which is prepared by a special polymerization process (BASF, Ludwigshafen, Germany) Techn. Info TI/P 3039 d from 1988.
The ®Geropon products HB, DA and DG and ®Dispersant HB and FB are, according to the Rhbne-Poulenc data sheet from 1979 and 1989 respectively, alkali metal polyacrylates, which are available both in liquid and solid form.
The ®Degapass series likewise consists of alkali metal and ammonium salts of polyacrylic acid derivatives.
Preferred surfactants are ethoxylated tristyrylphenols. In general, 0.1 to 30% by weight, preferably 0.5 to 20% by weight, of the surfactant or the surfactant mixture are added. In the case of the tristyrylphenol derivatives, the degree of ethoxylation can be between 10 and 40, but is preferably between 14 and 28. The tristyrylphenol derivatives are sold, for example, under the trade names ®Soprophor FL, ®Soprophor CY/8, ®Soprophor S/25, ®Soprophor FL/60, ®Soprophor FLK (Rh6ne- Poulenc), Hoe S 2374, Hoe S 3475, Hoe S 3775 (Clariant, Basle, Switzerland).
Particular preference is given to nonionic surfactants, and ®Soprophor S/25 is very 20 particularly preferred.
S The thickeners used according to the invention may be inorganic or organic in S nature; they can also be combined. Suitable thickeners are, for example, those based on aluminum; xanthan, methylcellulose, polysaccharide, for example alginate, alkaline earth silicate, gelatin and polyvinyl alcohol, such as montmorillonites and their organic derivatives, for example Bentone EW and ®Bentone LT, "Veegum, ®Rhodopol 23, ®Kelzan S or Satiaxan. Preference is given to polysaccharide-based thickeners.
The proportion of the thickener in the suspension concentrate is generally from 0.05 to 0.5% by weight, preferably from 0.1 to 0.2% by weight.
The suspension concentrate according to the invention preferably comprises one or more fillers, for example those based on silica, such as non-water-swellable kieselguhr (for example ®Diamol, from Bertram, Hamburg, Germany), or clay minerals, such as "Kaolin 1777.
The preferred filler is ®Diamol.
The filler is generally added in an amount of from 2 to 50% by weight, preferably from 5 to 20% by weight.
Concentrates which comprise a filler generally have advantages with respect to sedimentation rate, formation of sediments and phase separation.
Furthermore, it is possible to add to the concentrate according to the invention additionally up to 25% by weight, preferably up to 15% by weight, of commercial 15 auxiliaries, such as wetting agents, defoamers, preservatives and/or antifreeze agents.
Suitable additional wetting agents are, for example, tributylphenol polyglycol ethers, such as the ®Sapogenat T brands (Clariant) or nonylphenol polyglycol ethers, such 20 as the ®Arkopal N brands (Clariant).
Suitable defoamers are, for example, those based on silicone, such as those of the ®Silcoolapse series (Rhine-Poulenc), SE 39 or Antischaumittel SH (Wacker).
If required, preservatives, for example those based on formaldehyde, benzoic acid and triphenyltin, are used, for example ®Kobate C.
It is furthermore also possible to add antifreeze agents, such as urea, salts, polyols (for example glycol, propylene glycol or glycerol) or sugars.
To prepare the suspension concentrates according to the invention, the components are stirred, for example with water, and the resulting coarse suspension is comminuted, if appropriate, by grinding, for example in a corundum or toothed-disk mill, to a fineness of approximately 200 pm, and the product is subsequently ground, for example in attrition bead mills or sand mills, until the particles of the suspension are preferably present in particle sizes of from 0.1 to 10 pm, particularly preferably of below 5 pm. The particle size is determined using, for example, a disk centrifuge or a Coulter counter.
Such a process likewise forms part of the subject matter of the invention, as do suspension concentrates which are obtainable by this process.
The suspension concentrate of the invention is applied in a simple manner by diluting the concentrate with the desired amount of water, stirring and applying to b" 15 the plant. The spray liquors obtained from the concentrates according to the invention are distinguished in particular by a uniform distribution of the active compounds, which remains even after standing for 24 hours.
The suspension concentrate according to the invention is particularly suitable for the defoliation and for accelerating the opening of the capsule of cotton plants, which makes the use of harvesting machines considerably easier.
However, the concentrate according to the invention is also suitable for influencing the growth or for defoliating other plants.
The invention also provides a method of regulating the growth/defoliation of plants, which comprises treating the plant with an undiluted or diluted suspension concentrate according to the invention.
Dilution is preferably carried out using water, and the plant is preferably a cotton plant.
The invention also provides the use of a suspension concentrate according to the invention for regulating the growth/for the defoliation of a plant, preferably a cotton plant.
The application rate of the concentrate can vary within wide limits, depending on external conditions, such as temperature and humidity; it is generally from 1 to 10,000 g of total active compound/ha, preferably from 1 g to 1000 g of total active compound/ha.
Application is usually carried out after dilution with water, using, in general, from 100 to 1000 I of spray liquor per hectare. Use by the so-called LV (low volume) or ULV (ultra low volume) methods is also possible.
S• The concentrate according to the invention can optionally, depending on the 15 intended purpose, be used in combination with other active compounds, such as other defoliants and crop protection agents (herbicides, insecticides, fungicides, etc.).
Activity and speed of action can optionally also be increased using additives, such oil.o.
20 as organic solvents, wetting agents and oils, which allows the required application rate to be reduced.
Of course, it is also possible to use the concentrate according to the invention for treating genetically modified plants, in particular genetically modified cotton, which contain, for example, one or more foreign genes to obtain resistance to insecticides and/or herbicides.
The content of the German Patent Application 198 34 598.4, the priority date of which is claimed by the present application, and the enclosed abstract is expressly referred to; it is incorporated into the description by reference.
The invention is illustrated in more detail by the examples, without limiting it thereby.
Examples Example 1 Formulation 1: 0 .0,0* Component by weight Ethephon 36.00 Thidliazuron 3.00 %Soprophor S25 5.00 Satiaxane 0.20
H
2 0 55.80 Storage stability of formulation 1: Time by weight of thidliazuron Initial value 3.09 2 weeks at RT 3.09 2 weeks at 40 0 C 3.07 2 weeks at 54 0 C 3.05 8 weeks at RT 3.04 8 weeks at 40 0 C 3.04 8Bweeks at 54 0 C 2.96 Example 2 Formulation 2: Component by weight Ethephon 36.00 Thidliazuron 3.00 eSoprophor S25 5.00 OBentone LT 0.20
H
2 0 55.80 Storage stability of formulation 2: Time by weight of thidliazuron Initial value 3.06 2 weeks at RT 3.02 2 weeks at 40*C 3.01 2 weeks at 54"C 3.00 8 weeks at RT 3.02 8 weeks at 40 0 C 3.00 8 weeks at 54*C 2.93 Example 3: 9 Formulation 3: Component by weight Thidiazuron 2.50 Ethephon 30.00 ®Soprophor S25 4.17 ®Diamol 16.66 Satiaxane (x 91) 0.17
H
2 0 (demineralized) 46.50 Formulation 3 showed a particularly low sedimentation rate, neither formation of sediment nor phase separation was observed.
"Comprises/comprising" when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
*o
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Claims (13)
1. A stable suspension concentrate comprising a) thidiazuron and ethephon, b) one or more surfactants, c) one or more thickeners and d) water.
2. The suspension concentrate as claimed in claim 1, wherein the active compounds thidiazuron and ethephon are present in a mass ratio of 1:5 to
3. The suspension concentrate as claimed in claim 1 or 2, which comprises one or more nonionic surfactants.
4. The suspension concentrate as claimed in claim 3, wherein the surfactant is an ethoxylated tristyrylphenol.
The suspension concentrate as claimed in one or more of claims 1 to 4, which additionally comprises a filler.
6. The suspension concentrate as claimed in any one of claims 1 to 5, which comprises one or more further auxiliaries selected from the group consisting of *wetting agents, defoamers, preservatives and/or antifreeze agents.
7. A process for preparing a suspension concentrate as claimed in any one of claims 1 to 6, which comprises mixing up the components and, if appropriate, comminuting and grinding the resulting suspension.
8. The process as claimed in claim 7, wherein the suspension concentrate is ground to a particle size of from 01 to 10 pm.
9. A stable suspension concentrate obtainable by mixing a) thidiazuron and ethephon, b) one or more surfactants, 11 c) one or more thickeners and d) water, and, if appropriate, comminuting and grinding the resulting suspension.
A method of regulating the growth/defoliation of a plant, which comprises treating the plant with an undiluted or diluted suspension concentrate as claimed in any one of claims 1 to 6 and/or 9.
11. The method as claimed in claim 10, wherein the plant is a cotton plant.
12. The method as claimed in claim 11, wherein the cotton plant has been genetically modified.
13. The use of a suspension concentrate as claimed in any one of claims 1 to 6 and/or 9 for regulating the growth/defoliation of a plant, in particular a cotton plant. DATED this 30th day of June 2003 HOECHST SCHERING AGREVO GMBH WATERMARK PATENT TRADE MARK ATTORNEYS 290 BURWOOD ROAD HAWTHORN VICTORIA 3122 AUSTRALIA KJS/KMH/MEH
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998134598 DE19834598A1 (en) | 1998-07-31 | 1998-07-31 | Aqueous suspension concentrate containing thidiazuron and ethephon |
| DE19834598 | 1998-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4239499A AU4239499A (en) | 2000-02-24 |
| AU764967B2 true AU764967B2 (en) | 2003-09-04 |
Family
ID=7876013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU42394/99A Ceased AU764967B2 (en) | 1998-07-31 | 1999-07-30 | Aqueous suspension concentrate comprising thidiazuron and ethephon |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0976329B1 (en) |
| AR (1) | AR029309A1 (en) |
| AU (1) | AU764967B2 (en) |
| BR (1) | BR9903257A (en) |
| DE (1) | DE19834598A1 (en) |
| ES (1) | ES2195483T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9474268B2 (en) | 2012-02-27 | 2016-10-25 | Instituto De Ecologia, A.C. | Use of a herbicidal composition for controlling parasitic plants |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911165B4 (en) * | 1999-03-12 | 2008-03-13 | Bayer Cropscience Ag | defoliants |
| AU2006317177B2 (en) * | 2005-11-25 | 2012-09-06 | Bayer Intellectual Property Gmbh | Aqueous suspension concentrates of 4-benzoylpyrazole herbicides |
| EP1790229A1 (en) * | 2005-11-25 | 2007-05-30 | Bayer CropScience AG | Aqueous suspension-concentrates of oxadiazole herbicides |
| EP1790227A1 (en) * | 2005-11-25 | 2007-05-30 | Bayer CropScience AG | Aqueous suspension-concentrates of 2,4-diamino-s-triazine herbicides |
| EP1790228A1 (en) * | 2005-11-25 | 2007-05-30 | Bayer CropScience AG | Aqueous suspension-concentrate of metribuzin |
| CN101971862A (en) * | 2010-09-02 | 2011-02-16 | 袁永贵 | High-efficiency defoliating and ripening agent used before picking cotton |
| CN102396482B (en) * | 2011-12-28 | 2014-01-15 | 新疆锦华农药有限公司 | Thidiazuron suspension cotton defoliating agent |
| CN102659467A (en) * | 2012-04-12 | 2012-09-12 | 广西田园生化股份有限公司 | Ethephon-containing ultra low volume liquid formulation |
| CN103125519A (en) * | 2013-01-17 | 2013-06-05 | 仲恺农业工程学院 | Stem-type potted plant defoliant and defoliant treatment method thereof |
| CA2932027C (en) | 2013-12-11 | 2021-10-19 | Fine Agrochemicals Ltd. | Water-dispersible plant growth regulating concentrate and processes for making and using same |
| CN105901010A (en) * | 2016-06-03 | 2016-08-31 | 扬州大学 | Agent special for defoliating and ripening cotton in wetland |
| AU2018101611B4 (en) * | 2018-10-26 | 2022-06-09 | Adama Australia Pty Ltd | Ethephon Formulation |
| CN111374141A (en) * | 2020-03-30 | 2020-07-07 | 中国农业科学院棉花研究所 | A kind of pesticide composition for defoliation and ripening of cotton and use thereof |
| CN111264550A (en) * | 2020-03-30 | 2020-06-12 | 中国农业科学院棉花研究所 | A kind of cotton defoliant composition and use thereof |
| CN111616157A (en) * | 2020-05-29 | 2020-09-04 | 中国农业科学院棉花研究所 | A kind of cotton defoliation and ripening composition comprising thidiazuron and isoproturon and application thereof |
| GB202008582D0 (en) * | 2020-06-08 | 2020-07-22 | Univ Oxford Innovation Ltd | Clay compositions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261726A (en) * | 1976-10-14 | 1981-04-14 | Schering Ag | Composition for plant growth regulation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8607066A (en) * | 1985-12-30 | 1988-02-23 | Rhone Poulenc Bv | DISPERSES OF PLANT GROWTH REGULATORS |
| HU207197B (en) * | 1987-07-16 | 1993-03-29 | Chinoin Gyogyszer Es Vegyeszet | Plant protecting solution and aquous suspension containing water insoluble active component |
-
1998
- 1998-07-31 DE DE1998134598 patent/DE19834598A1/en not_active Withdrawn
-
1999
- 1999-07-16 ES ES99113891T patent/ES2195483T3/en not_active Expired - Lifetime
- 1999-07-16 EP EP19990113891 patent/EP0976329B1/en not_active Expired - Lifetime
- 1999-07-29 AR ARP990103768A patent/AR029309A1/en active IP Right Grant
- 1999-07-30 BR BR9903257-0A patent/BR9903257A/en not_active Application Discontinuation
- 1999-07-30 AU AU42394/99A patent/AU764967B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261726A (en) * | 1976-10-14 | 1981-04-14 | Schering Ag | Composition for plant growth regulation |
| US4402726A (en) * | 1976-10-14 | 1983-09-06 | Schering Ag | Composition for plant growth regulation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9474268B2 (en) | 2012-02-27 | 2016-10-25 | Instituto De Ecologia, A.C. | Use of a herbicidal composition for controlling parasitic plants |
| US9763441B2 (en) | 2012-02-27 | 2017-09-19 | Instituto De Ecologia, A.C. | Use of a herbicidal composition for controlling parasitic plants |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0976329A1 (en) | 2000-02-02 |
| ES2195483T3 (en) | 2003-12-01 |
| AR029309A1 (en) | 2003-06-25 |
| DE19834598A1 (en) | 2000-02-03 |
| EP0976329B1 (en) | 2003-03-19 |
| AU4239499A (en) | 2000-02-24 |
| BR9903257A (en) | 2000-04-18 |
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| FGA | Letters patent sealed or granted (standard patent) |