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Herbicide O,O-dimethyl-1-(2,4-dichlorphenoxyacethoxy ethyl phosphate ester and weeding composition thereof

A technology of dichlorophenoxyacetoxy and herbicidal composition, which is applied in the field of herbicide O, and can solve problems such as pyruvate dehydrogenase that have not been seen yet

Inactive Publication Date: 2004-09-15
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No commercial herbicides targeting pyruvate dehydrogenase have been reported so far

Method used

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  • Herbicide O,O-dimethyl-1-(2,4-dichlorphenoxyacethoxy ethyl phosphate ester and weeding composition thereof
  • Herbicide O,O-dimethyl-1-(2,4-dichlorphenoxyacethoxy ethyl phosphate ester and weeding composition thereof
  • Herbicide O,O-dimethyl-1-(2,4-dichlorphenoxyacethoxy ethyl phosphate ester and weeding composition thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment A

[0046] Table 1 EC Examples A1-5

[0047] A-1 A-2 A-3 A-4 A-5

[0048] Active ingredient HW02 15% 18% 20% 25% 30%

[0049] Sodium dodecylbenzene sulfate 8% 10% 12%

[0050] Tween 12.5% ​​15%

[0051] Ethylene glycol 2% 3%

[0052] Polyethylene glycol phenolic phosphate 4% 2%

[0053] Dimethylformamide 67.5%

[0054] Acetone 10%

[0055] C 9 ~C 12 Aromatic mixture 60% 68%

[0056] Xylene 15% 51% 52%

[0057] Any desired concentration can be prepared by diluting the above concentrate with water.

[0058] Table 2 EC Examples A6~A9

[0059] A-6 A-7 A-8 A-9

[0060] Composition 5% 10% 25% 50%

[0061] Sodium dodecylbenzenesulfonate 6% 8% 10% 12%

[0062] Polyethylene glycol ether 4% 2%

[0063] Polyethoxylated Castor Oil 4%

[0064] Cyclohexanone 10% 20%

[0065] C 7 ~C 12 Aromatic mixture 85% 78% 55% 16%

[0066] Any desired concentration can be prepared by diluting the above...

Embodiment 18

[0089] Take 90g of 25% HW02 emulsifiable concentrate and 0.4g of 75% Tribesulfuron-methyl dry suspension and mix well to obtain a 25.2% combined herbicide for use.

Embodiment 19

[0091] Get 75g of emulsifiable concentrate of 20% HW02 and 35g of 75% isoproturon wettable powder and fully stir, just can obtain the combined herbicide of 41% for use.

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Abstract

The invention describes a herbicide, O, O-demethyl-1-(2, 4-dichlorophenoxy)ethylphosphate (HW02), processing stems and leaves as well as weeding combination, containing an active compound and a compound selected from the compounds: tribenuron, thifensulfuron, methsulfuron, chlorsulfuron, bensulfuron, isoproturon, fluroxypyr, quinclorac, mefenacet ,alachlor, aetochlor, butachlor and metolachlor. The herbicide and its combination are applied to effectively prevent and cure various weeds in dry land, especially cornfield and rice paddy as well as garden, tea garden and lawn. It also describes their preparation and weed processing method as well as application to processing stems and leaves.

Description

technical field [0001] The present invention relates to herbicide O, O-dimethyl-1-(2,4-dichlorophenoxyacetoxy) ethyl phosphonate (HW02) and its herbicidal composition, and they are used as stem and leaf treatment herbicide The agent is used for field weeding of gramineous crops such as wheat fields and / or rice fields, as well as for weeding of tea gardens, orchards, and lawns. Background technique [0002] The inventor has researched and invented a class of herbicidally active substituted phenoxyacetoxyalkyl phosphonate A (He Hongwu et al., Chinese Invention Patent, Patent No.: ZL 97109095.5, International Patent Main Classification No. : CO7F 9 / 38), it was found that these compounds showed better herbicidal activity and plant growth regulation activity to varying degrees, especially these compounds had significant inhibitory effect on the growth of dicotyledonous and monocotyledonous plants, Can be developed as a herbicide application. Moreover, in the research, the inven...

Claims

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Application Information

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IPC IPC(8): A01N57/14C07F9/40
Inventor 贺红武谭孝松王今红刘钊杰彭浩陈婷
Owner HUAZHONG NORMAL UNIV
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