AP68A - Composition for the defoliation of plants 1 - Google Patents
Composition for the defoliation of plants 1 Download PDFInfo
- Publication number
- AP68A AP68A AP87/00074A AP8700074A AP68A AP 68 A AP68 A AP 68A AP 87/00074 A AP87/00074 A AP 87/00074A AP 8700074 A AP8700074 A AP 8700074A AP 68 A AP68 A AP 68A
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- ARIPO
- Prior art keywords
- weight
- defoliation
- plants
- percent
- components
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 230000035613 defoliation Effects 0.000 title claims description 24
- 239000004202 carbamide Substances 0.000 claims description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 14
- 240000002024 Gossypium herbaceum Species 0.000 abstract description 9
- 235000004341 Gossypium herbaceum Nutrition 0.000 abstract description 9
- 230000002195 synergetic effect Effects 0.000 abstract description 9
- HFCYZXMHUIHAQI-UHFFFAOYSA-N Thidiazuron Chemical compound C=1C=CC=CC=1NC(=O)NC1=CN=NS1 HFCYZXMHUIHAQI-UHFFFAOYSA-N 0.000 abstract description 3
- AXTGDCSMTYGJND-UHFFFAOYSA-N 1-dodecylazepan-2-one Chemical compound CCCCCCCCCCCCN1CCCCCC1=O AXTGDCSMTYGJND-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 239000004094 surface-active agent Substances 0.000 description 9
- 239000004480 active ingredient Substances 0.000 description 7
- CGZZMOTZOONQIA-UHFFFAOYSA-N cycloheptanone Chemical compound O=C1CCCCCC1 CGZZMOTZOONQIA-UHFFFAOYSA-N 0.000 description 7
- -1 dusts Substances 0.000 description 7
- 239000002837 defoliant Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 229920005551 calcium lignosulfonate Polymers 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XMTQQYYKAHVGBJ-UHFFFAOYSA-N 3-(3,4-DICHLOROPHENYL)-1,1-DIMETHYLUREA Chemical compound CN(C)C(=O)NC1=CC=C(Cl)C(Cl)=C1 XMTQQYYKAHVGBJ-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000000463 material Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- 239000005510 Diuron Substances 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241000144290 Sigmodon hispidus Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- OMOVVBIIQSXZSZ-UHFFFAOYSA-N [6-(4-acetyloxy-5,9a-dimethyl-2,7-dioxo-4,5a,6,9-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl)-5-formyloxy-3-(furan-3-yl)-3a-methyl-7-methylidene-1a,2,3,4,5,6-hexahydroindeno[1,7a-b]oxiren-4-yl] 2-hydroxy-3-methylpentanoate Chemical compound CC12C(OC(=O)C(O)C(C)CC)C(OC=O)C(C3(C)C(CC(=O)OC4(C)COC(=O)CC43)OC(C)=O)C(=C)C32OC3CC1C=1C=COC=1 OMOVVBIIQSXZSZ-UHFFFAOYSA-N 0.000 description 1
- JHXCINJSAAFBDH-UHFFFAOYSA-N [Ca].O[Si](O)(O)O Chemical compound [Ca].O[Si](O)(O)O JHXCINJSAAFBDH-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 229940042472 mineral oil Drugs 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- 238000009736 wetting Methods 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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)
Abstract
The invention relates to a novel composition for defoliating plants which has a synergistic action and contains a mixture of 1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea and 1-dodecylazacycloheptan-2-one, and to its use, in particular for defoliating cotton plants.
Description
This invention relates to a new composition for defoliation of plants having synergistic activity which contains as the active ingredients a mixture of l-phenyl-3-(1,2.3-thiadiazol-5-yl)urea and 1-dodecylaza5 cycloheptan-2-one or a mixture of l-phenyl-3-(1.2,3thiadiazol-5-yl)urea, l-dodecylazacycloheptan-2-one and
3-(3,4-dichlorophenyl)-1,1-dimethylurea.
The composition consists essentially of tw<? and/or three 10 components that mutually affect each other when used together and display a biological activity which is greater than the sum of the activities used alone and shows an effect which can be described as synergistic.
This synergistic activity introduces in the present case the increased formation of separating tissue in plants and thus leads to a controlled removal of the leaf stalk and leaves of the treated plants.
l-Phenyl-3-(l.2,3-thiadiazol-5-yl)urea is already known as 20 a plant defoliant (DE-OS 25 06 690).
l-Dodecylazacycloheptan-2-one is also known and have been described, inter alia, as agents for enhancing the penetration of pesticides and nutrients into plants.
(EP 77 078 and EP 160 111). However, its use as a
APO 00066
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defoliant or as a synergist for defoliants is not known.
3-(3,4-Dichlorophenyl)-1,1-dimethyl urea is generally known, under the common name diuron. as a herbicide (USP 2 655 445).
Oft
Also mixtures with 1-pheny1-3-(1,2.3-thiadiazol-5-y1)urea
O _ for the defoliation of plants which show a synergistic activity, are already known (DE-OS 26 46 712 and
ZS ** 10 DE-OS 32 22 622).
However, there still exists to an ever increasing extent a considerable requirement for further materials in this area with increased activity and with it the possibility of lower amounts of active material and especially an increasing demand for corresponding protection of the environment.
With the substances known up until now, clear progress has 20 been made. However, it is not always satisfactory.
especially when for acceptable activity at lower temperatures, higher rates of use are required, or for an acceptable activity also, the high rates of use are no longer allowed.
- 2 BAD ORIGINAL $
The object of the present invention is therefore to provide a composition for defoliation of plants having synergistic activity which does not have the drawbacks of the known substances.
This object can be solved according to invention by a composition which is characterised by comprising a mixture of the components
A) 1-phenyl-3- (1,2,3-thiadiazol-5-yl)urea and 10 B) l-dodecylazacycloheptan-2-one or
A) l-phenyl-3-(1,2,3-thiadiazo1-5-yl)urea,
B) l-dodecylazacycloheptan-2-one and
C) 3-(3,4-dichlorophenyl)-1,l-dimethylurea.
Surprisingly, the composition of the invention shows a defoliation activity that is often much greater than the sum of the activities of the single components when used alone, which is not predictable from the present state of knowledge.
The state of the art is considerably improved by the provision of the compositions of the invention.
This is demonstrated particularly in comparison with g 9 0 0 U 0 dV
BAD ORIGINAL common defoliants, such as S.S,S-tributyl phosphorotrithioate or sodium chlorate, where addition of 1-dodecylazacycloheptan-2-one gives no increase in activity as is observed with the composition of the invention.
530 The composition of the invention is particularly valuable under climatic conditions where a single component alone does not produce ..clear defoliation.
.,w*·
1> 10 .a
The synergistic activity of the mixture of the invention is displayed when it contains to each part by weight of component A. 1 to 100 parts by weight of component B and 0 to 10 parts by weight of component C. but these limiting values can also be exceeded by larger or smaller amounts.
Optimal increase in activity is exhibited by the mixtures of the invention that contain for each part by weight of defoliant substance A, 1 to 50 parts by weight of component B and 0 to 5 parts by weight of component C. However, the proportion by weight depends on the sensitivity and resistivity of the plants, the time of use. the climatic conditions and the soil conditions.
The composition of the invention is suitable for the
BAD ORIGINAL Ά defoliation, and with it the facilitating of harvesting, of many plants, especially cotton.
The rates of use are as a rule in the range 1 to 10.000 5 grams of the mixture (components A, B and C) per hectare, especially 100 to 2000 grams of mixture per hectare.
The composition can be applied in example with water as the carrier of approximately 100 to 2000 1/ha. applied using low-volume or ultracustomary fashion, for in spray mixture volumes The composition can be low-volume techniques.
AP 0 0 0 0 6 8
The composition of the invention can, if desired, be used in mixture with other active ingredients, for example defoliants, plant protection or pesticide materials depending on the desired object.
An increase in the activity and the speed of activity can also be obtained for example through use of additives which will increase the activity, such as for example, solvents, surfactants and oils. These can lead to a further reduction of the rates of use of the actual active ingredients.
The mixtures of the invention can suitably be used, for
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Vbooooee example, as powders, dusts, granules, solutions, emulsions or suspensions, with the addition of liquid and/or solid carriers and/or diluents and, optionally, binding, wetting, emulsifying and/or dispersing adjuvants.
Suitable liquid carriers are, for example aliphatic and aromatic hydrocarbons, as well as cyclohexanone, isophorone, dimethyl sulphoxide. dimethylformamide and other mineral-oil. fractions and plant oils.
Suitable solid carriers include mineral earths, e.g. bentonite, silica gel, talcum, kaolin, attapulgite. limestone, silicic acid and plant products, e.g. flours.
As surface-active agents there can be used for example calcium lignosulphonate, polyoxyethylenealkylphenyl ether, naphthalenesulphonic acids and their salts, phenolsulphonic acids and their salts, formaldehyde condensates, fatty alcohol sulphates, as well as substituted benzenesulphonic acids and their salts.
The content of the mixture (components A, B and C) in the various preparations can vary within wide limits. For example, the compositions can contain about 5 to 95 percent by weight of components A, B and C, and about 95
- 6 BAD ORIGINAL ft to 5 percent by weight liquid or solid carriers, as well as. optionally up to 30 percent by weight of surfactant.
Formulations can be prepared, for example, from the 5 following ingredients.
a) 95 percent by weight components A and B or A, B and C 5 percent by weight of a surfactant based on the polyoxyethylene derivative of sorbitan acid
AP 0 0 0 0 6 8
b) 35 percent by weight components A and B percent by weight colloidal silicic acid 10 percent by weight kaolin percent by weight calcium lignosulphonate 2 percent by weight ammonium chloride 2 percent by weight of a surfactant based on polyoxyethylene derivatives 1 percent by weight of a surfactant based on dialkylnaphthalensulphonate
c) percent by percent by percent by percent by fatty acid weight components A and B weight bentonite weight calcium lignosulphonate weight of a surfactant based on condensation products ..--
BAD ORIGINAL Ά <00
3»
Ο
Ο ο
J3 >
| d) | 72 28 | percent by weight | ||
| percent ethoxyli | by i tec | weight 1 tert | ||
| e) | 55 | percent | by | weight |
| 38 | percent | by | weight | |
| 5 | percent | by | weight | |
| 2 | percent | by | weight |
polyoxyethylene d components A, B and C of a surfactant based on lkylamine components A, B and C colloidal silicic acid calcium lignosulphonate of a surfactant based on rivatives
With unfavourable conditions for the defoliation, glasshouse tests are the basis for the following examples which as a general rule are carried out on cotton plants with 4 to 8 true leaves. The composition is applied in the form of suspensions or emulsions at a rate of 200 litres of water per hectare.
The evaluation of the experiment is carried out by counting the number of discharged leaves after the application and by estimation of the percentage of the total number of leaves. For each experimental member there is always present in each single experiment the same number of plants and leaves. From experiment to experiment the number of leaves for each experimental member did not vary and lay between 20 and 32 leaves.
- 8 BAD ORIGINAL
The following reports of the experiment contain data about the components A. B and C. rates of use, as well as the calculation of the percentage rate of defoliation. Next to the percentage rate of defoliation obtained is given, in brackets, the value that would be expected for additive activity as calculated by the method of S R Colby (S R Colby Calculating Synergistic and Antagonistic Responses of Herbicide Combinations. Weeds 15/1 (1967) pages 20 to
22).
The calculation was carried out according to the following equation:
APO00068
| E = X + | (XY +- XZ + YZ) + XYZ | ||
| I + L· - | 100 | 10000 | |
| in which X = | percentage p kg/ha | defoliation | with substance A at |
| Y = | percentage q kg/ha | defoliation | with substance B azt |
| Z = | percentage | defoliation | with substance C at |
r kg/ha
E = the expected defoliation by additive activity of the substances A+B+Catp+q+r kg/ha.
If the observed value is higher than that value E calculated according to Colby, the combination has synergistic activity.
- 9 BAD ORIGINAL $ weeks
Example 1
Young cotton plants in the 5 to 6 leaf stage were treated with the active ingredients given below (repeated 4 times). The volume of water used was 200 1/ha.
<» 5
After 2 ascertained.
o <•0
Components of invention the percentage
The results are of discharged leaves given in the was following table.
| Rate | Defoliation | E |
| in | (%) | (according |
| g/ha | to Colby) |
| 15 | 1-Phenyl-3-(1,2.3- thiadiazol-5-yl) - urea | A | 20 40 80 | 10 24 40 | |
| 1-dodecylaza- | B | 240 | 0 | ||
| cycloheptan-2-one | 500 | 0 | |||
| 20 | 1000 | 0 | |||
| 2000 | 0 | ||||
| A + B | 40 + 500 | 90 | (24) |
- 10 BAD ORIGINAL ft
Example 2
Young cotton plants in the 5 to 6 leaf stage were treated as in Example 1 and evaluated after 20 days at 15 to 17°C.
Rate Defoliation E
Components in (%) (according of invention g/ha to Colby)
1-Phenyl-3-(1.2,3- A 20 0 thiadiazol-5-yl)- 40 0 urea 80 10
1-dodecylaza- B 500 0 cycloheptan-2-one 1000 o
A + B 20 + 500 70 (0) + 500 100 (0)
AP000068
BAD ORIGINAL S
Example 3
Young cotton plants in the 5 to 6 leaf stage were treated as in Example 2 and evaluated after 20 days at unfavorable temperatures (mainly between 15 and 20°C).
| Rate | Defoliation | E | |
| Components | in | (*> | (according |
| of invention | g/ha | to Colby) |
| l-Phenyl-3-(1.2,3- | A | 50 | 10 | |
| thiadiazol-5-yl) - | 100 | 14 | ||
| urea | ||||
| 1-dodecylaza- | B | 50 | 0 | |
| cycloheptan-2- one | 100 | 0 | ||
| A + B | 50 + 50 | 38 | (0) |
- 12 BAD ORIGINAL &
Example 4
Young cotton plants in the 5 to 6 leaf stage were treated as in Example 2 and evaluated after 13 days at unfavorable temperatures (mainly between 13 and 20°C).
| Rate | Defoliation | E | |
| Components | in | (*) | (according |
| of invention | g/ha | to Colby) |
| 10 | 1-Phenyl~3-(1.2,3- thiadiazol-5-yl) - urea | A | 30 60 | 0 0 | |
| l-dodecylaza- | B | 500 | 0 | ||
| 15 | cycloheptan-2 one | 2000 | 0 | ||
| A + B | 30 + 500 | 85 | (0) | ||
| A + B | 60 + 500 | 100 | (0) | ||
| Comparison | |||||
| 20 | S.S.S-tributylphos- | D | 350 | 65 | |
| phosphorothioate | 700 | 78 | |||
| B+D | 500+350 | 62 | (65) | ||
| 500+700 | 76 | (78) | |||
| Sodium chlorate | E | 1000 | 5 | ||
| 25 | B+E | 500+1000 | 5 | (5) | |
| 13 - |
AP 0 0 0 0 6 8
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Example 5
Young cotton plants in the 5 to 6 leaf stage were treated with the active ingredients given below (repeated 4 times). The volume of water used was 200 1/ha.
After 2 weeks at 15 to 17°C the percentage of discharged
| leaves was ascerta | ined . | The | results | are given in | the |
| following table. | Rate | Defoliation | E | ||
| Components | in | (*) | (according | ||
| of invention | g/ha | to Colby) | |||
| 1-Phenyl-3 - (1,2.3- | A | 25 | 0 | ||
| thiadiazol-5-y1) - | 50 | 10 | |||
| urea | 100 | 14 | |||
| 1-dodecylaza- | B | 25 | 0 | ||
| cycloheptan-2-one | 50 | 0 | |||
| 100 | 0 | ||||
| 3-(3,4-dichlorophenyl) - | C | 25 | 0 | ||
| 1,1 d imethylurea | 50 | 0 | |||
| 100 | 0 | ||||
| A+B+C | 25+50+25 | 86 | (0) |
Comparison
A+C 50 + 50 71 (10)
- - 14 BAD ORIGINAL ft
Example 6
Young cotton plants in the 6 to 7 leaf stage were treated as in Example 5 and evaluated after 3 weeks at unfavorable temperatures (mainly between 14 and 20°C).
Components of invention
| Rate | Defoliation | E |
| in | (*) | (according |
| g/ha | to Colby) |
| 10 | l-Phenyl-3-(1.2.3- | A | 9 |
| thiadiazol-5-yl)- | 20 | ||
| urea | 100 | ||
| 1-dodecylaza- | B | 85 | |
| cycloheptan-2-one | 500 | ||
| 15 | 3-(3.4-dichlorophenyl) - C | 2 | |
| 1,l-dimethylurea | 20 | ||
| 100 | |||
| A+B+C | 9+85+2 | ||
| Comparison | |||
| 20 | A+C | 20 + 20 |
(0)
AP000068 (0)
Example 7
Young cotton plants in the 6 the active ingredients given volume of spray used was 200 leaf stage were treated with below (repeated 4 times). The 1/ha. A few days after
- 15 BAD ORIGINAL
| 5 | application of the active ingredients, and maintaining at unfavorable temperatures (mainly between 12 and 20°C), the percentage of discharged leaves was ascertained. | ||||
| Components of invention | Rate in g/ha | Defoliation E | |||
| (%) | (according to Colby) | ||||
| CO | |||||
| 3» | 1-Pheny1-3-(1,2,3 - A | 25 | 0 | ||
| thiadiazol-5-yl) - | 50 | 0 | |||
| o | 10 | urea | 100 | 10 | |
| 43 | 1-dodecylaza- B | 50 | 0 | ||
| <** | cycloheptan-2-one | 100 | 0 | ||
| 500 | 0 | ||||
| 3-(3,4-dichlorophenyl)- C | 5 | 0 | |||
| 15 | 1,l-dimethylurea | 10 | 0 | ||
| 12.5 | 0 | ||||
| 50 | 0 | ||||
| 300 | 0 | ||||
| A+B+C | 25+50+5 | 24 | (0) | ||
| 20 | A + B+C | 50+100+10 | 48 | (0) | |
| A + B+C | 25+200+12.5 | 68 | (0) | ||
| Comparison | |||||
| A+C | 50 + 50 | 19 | (0) |
- 16 BAD ORIGINAL &
')
Claims (4)
1. Composition for defoliation of plants which is characterised by comprising a mixture of the components
A) l-phenyl-3-(l,2, 3-thiadiazol-5-yl)urea and
B) l-dodecylazacycloheptan-2-one
2.3-thiadiazol-5-yl)urea. cloheptan-2-one and ophenyl)-1,1-d imethylurea.
AP 0 0 0 0 6 8
2. Composition according to claim 1. characterised in that it comprises for each part by weight of component A, 1 to 100 parts by weight of component B and 0 to 10
15 parts by weight of component C.
3. Composition according to claims 1 to 2 characterised in that it comprises for each part by weight of component A. 1 to 50 parts by weight of component B
20 and 0 to 5 parts by weight of component C.
4. Process for the preparation of compositions for defoliation of plants characterised by mixing a mixture of the components according to claims 1 to 3
25 with carriers and or other adjuvants.
- 17 BAD ORIGINAL Ά
Use of compositions according to claims 1 to 3 for the defoliation of leaves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863643654 DE3643654A1 (en) | 1986-12-18 | 1986-12-18 | Plant defoliant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AP8700074A0 AP8700074A0 (en) | 1989-06-18 |
| AP68A true AP68A (en) | 1990-02-10 |
Family
ID=6316698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AP87/00074A AP68A (en) | 1986-12-18 | 1987-12-18 | Composition for the defoliation of plants 1 |
Country Status (3)
| Country | Link |
|---|---|
| AP (1) | AP68A (en) |
| DE (1) | DE3643654A1 (en) |
| ZA (1) | ZA879529B (en) |
-
1986
- 1986-12-18 DE DE19863643654 patent/DE3643654A1/en not_active Withdrawn
-
1987
- 1987-12-18 AP AP87/00074A patent/AP68A/en active
- 1987-12-18 ZA ZA879529A patent/ZA879529B/en unknown
Non-Patent Citations (1)
| Title |
|---|
| Herbicide Handbook- Weed Society of America; Plant Growth Regulators-Hawsan Chemical Technology Review Technology Review no. 14 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA879529B (en) | 1988-06-15 |
| AP8700074A0 (en) | 1989-06-18 |
| DE3643654A1 (en) | 1988-06-30 |
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