(19)

(11)

EP 0 809 633 A1

(12)

(43) Date of publication: 03.12.1997 Bulletin 1997/49 (21) Application number: 96904023.0 (22) Date of filing: 08.02.1996

(51) International Patent Classification (IPC):  A01N 43/ 56( . ) C07D 231/ 44( . ) (86) International application number: PCT/EP1996/000527 (87) International publication number: WO 1996/025401 (22.08.1996 Gazette 1996/38)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE (30) Priority: 17.02.1995 US 19950390028 21.04.1995 US 19950426657 (71) Applicant: RHONE-POULENC AGROCHIMIE 69009 Lyon (FR)	(72) Inventors: PILATO, Michael, Thomas Cary, NC 27513 (US) WU, Tai-Teh Chapel Hill, NC 27514 (US)