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(11)

EP 0 643 555 A1

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(43) Date of publication: 22.03.1995 Bulletin 1995/12 (21) Application number: 92919886.0 (22) Date of filing: 25.09.1992

(51) International Patent Classification (IPC):  A01N 25/ 12( . ) A01N 25/ 34( . ) A01N 25/ 14( . ) A01N 47/ 22( . ) (86) International application number: PCT/FI1992/000258 (87) International publication number: WO 1993/005652 (01.04.1993 Gazette 1993/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 27.09.1991 FI 19910004545 (71) Applicant: KEMIRA AGRO OY SF-02271 Espoo (FI)	(72) Inventors: HARJU-JEANTY, Pontus SF-65610 Mustasaari (FI) JUPPO, Ari SF-65210 Vaasa (FI) (74) Representative: Dost, Wolfgang, Dr.rer.nat., Dipl.-Chem., et al  Patent- und Rechtsanwälte Bardehle . Pagenberg . Dost . Altenburg . Frohwitter . Geissler & Partner Galileiplatz 1 D-81679 München D-81679 München (DE)