GB829479A - Improved fungicidal copper sprays - Google Patents

Abstract

Fungicidal spray compositions comprise a polyglycol ether or a glycerol fatty acid ester containing at least one free OH group in the glycerol part of the molecule, a fatty acid metal salt and a fungicidal copper compound, e.g. copper oxides, copper salts, a basic copper salt or a complex of a copper compound and a salt of another metal with a copper content of 5-70% by weight and preferably 25-50% by weight. The polyglycol ether may be aryloxy polyglycol ether, e.g. a reaction product of ethylene oxide or propylene oxide or a mixture thereof with phenol, a cresol, a hydroxydiphenyl or a benzyl hydroxydiphenyl or a fatty alcohol polyglycol ether, e.g. a reaction product of one or more C8-C25 alcohols with ethylene oxide or propylene oxide or a mixture thereof, preferably the reaction product of one or more C12-C18 alcohols such as lauryl, stearyl, palmityl or oleyl polyglycol ether. Specified esters are lauric acid-glycerol mono- or di-ester, palmitic acid-glycerol mono- or diester or stearic acid-glycerol diester. Specified fatty acid metal salts are the sodium, potassium, zinc, magnesium, manganese, iron, titanium, aluminium or copper salt of lauric acid, stearic acid, palmitic acid, inorganic acid, oleic acid or linoleic acid. Specified copper compounds are cupric oxide, copper oxychloride (Cu(OH)2 CuCl2), cupric sulphate, cupric carbonate, basic copper oxychloride ([3Cu(OH)2].CuCl2), basic cupric sulphate (Cu(OH)2.CuSO4), cupric chloride, basic copper carbonate or the complexes Cu(OH)2.CaCl2, Cu(OH)2.ZnCl2 or Cu(OH)2 MgCl2, or mixture of one or more of these copper compounds with zinc phosphate, zinc sulphate, zinc carbonate, zinc oxide, zinc sulphide or magnesium carbonate.