Controlled release formulations of anionic herbicides

Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing

Reexamination Certificate

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Details

C504S214000, C504S215000, C504S227000, C504S239000, C504S273000, C504S274000, C504S275000, C504S345000, C504S359000, C504S367000

Reexamination Certificate

active

07030062

ABSTRACT:
A herbicidal formulation comprising of incorporating the herbicide in a micelle or vesicle and adsorbing said micelle or vesicle containing herbicide on clay mineral. The formulation is suitable in particular for negatively charged herbicides at pH above 6. The herbicidal formulation provides slow release and reduced leaching of the herbicide to deep soil layers, thus reducing contamination of underground water and soil. Furthermore, the herbicide is maintained in the target vicinity, thus its efficiency is enhanced and a smaller concentration may be used.

REFERENCES:
patent: 4849006 (1989-07-01), Knudson, Jr.
patent: 6261997 (2001-07-01), Rubin et al.
patent: 1 565 362 (1980-04-01), None
patent: WO 98/08380 (1998-03-01), None
Mishael, Yael Golda, et al., “Sulfometuron Incorporation in Cationic Micelles Adsorbed on Montmorillonite”, J. Agric. Food Chem., vol. 50, pp. 2856-2863, 2002.
Mishael, Yael Golda, et al., “Slow-Release Formulations of Sulfometuron Incorporation in Micelles Adsorbed on Montmorillonite”. J. Agric. Food Chem., vol. 50, pp. 2864-2869, 2002.
Carter, A. D., “Herbicide movement in soils: principles, pathways and processes”. Weed Res., vol. 40, pp. 113-122, 2000.
Dailey, Oliver D., Jr., et al., “Polymeric Microcapsules of the Herbicides Atrazine and Metribuzin: Preparation and Evaluation of Controlled-Release Properties”. J. Agric. Food Chem., vol. 41, pp. 1517-1522, 1993.
El-Nahhal, Yasser, et al., “Leaching, Phytotoxicity, and Weed Control of New Formulations of Alachlor”. J. Agric. Food Chem., vol. 46, pp. 3305-3313, 1998.
El-Nahhal, Yasser, et al., “Movement of metolachlor in soil: effect of new organo-clay formulations”. Pestic. Sci., vol. 55, pp. 857-864, 1999.
El-Nahhal, Yasser, et al., “Montmorillonite-Phenyltrimethylammonium Yields Environmentally Improved Formulations of Hydrophobic Herbicides”. J. Agric. Food Chem., vol. 48, pp. 4791-4801, 2000.
El-Nahhal, Yasser, et al., “Organo-Clay Formulation of Acetochlor for Reduced Movement in Soil”. J. Agric. Food Chem., vol. 49, pp. 5364-5371, 2001.
Ferraz André, et al., “Controlled Release of 2,4-D from Granule Matrix Formulations Based on Six Lignins”. J. Agric. Food Chem., vol. 45, pp. 1001-1005, 1997.
Gerstl, Z., et al., “Controlled Release of pesticides into Water from Clay-Polymer Formulations”. J. Agric. Food Chem., vol. 46, pp. 3803-3809, 1998.
Gish, T. G., et al., “Field-Scale Mobility and persistence of Commercial and Starch-Encapsulated Atrazine and Alachlor”. J. Environ. Qual., vol. 23, pp. 355-359, 1994.
Harvey, John, Jr., et al., “Properties of Sulfometuron Methyl Affecting Its Environmental Fate: Aqueous Hydrolysis and Photolysis, Mobility and Adsorption on Soils, and Bioaccumulation Potential”. J. Agric. Food Chem., vol. 33, pp. 590-596, 1985.
Loukas, Yannis, L., et al., “γ-Cyclodextrin Inclusion Complex of a New Organophosphorus Insecticide. Determination of Stability Constant with HPLC”. J. Agric. Food Chem., vol. 42, pp. 944-948, 1994.
Pool, C. F., et al., “Leaching depth of imazamethabenz methyl and chlorsulfuron + metsulfuron methyl in different soils”. Applied Plant Sci., vol. 9, pp. 43-47, 1995.
Sarmah, Ajit K., et al., “Fate and behaviour of triasulfuron, metsulfuron-methyl, and chlorsulfuron in the Australian soil enviroment: a review”. Aust. J. Agric. Res., vol. 49, pp. 775-790, 1998.
Veeh, R. H., et al., “Transport of Chlorsulfuron through Soil Columns”. J. Environ. Qual., vol. 23, pp. 542-549, 1994.

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