(19)

(11)

EP 0 257 066 A1

(12)

(43) Date of publication: 02.03.1988 Bulletin 1988/09 (21) Application number: 87901322.0 (22) Date of filing: 03.02.1987

(51) International Patent Classification (IPC):  A01N( . ) A01N 25/ 14( . ) A01N 57/ 20( . ) A01N 25/ 12( . ) A01N 25/ 30( . ) (86) International application number: PCT/BR1987/000004 (87) International publication number: WO 1987/004595 (13.08.1987 Gazette 1987/18)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 04.02.1986 BR 19860000462 (71) Applicant: MONSANTO DO BRASIL S.A. 05424 - Sao Paulo, SP (BR)	(72) Inventors: TEIXEIRA COSTA FILHO, Geraldo 13100 - Campinas, SP (BR) VON ZUBEN, Fernando, José Jardim Bela Vista 13100 - Campinas, SP (BR) BERGSON FERNANDES BARRETO, Henri 13100 - Campinas, SP (BR) (74) Representative: Arnold, Carol Alice  Shell International Petroleum Company Limited Intellectual Property Division P.O. Box 662 London SE1 7NE London SE1 7NE (GB)