(19)

(11)

EP 1 229 794 A2

(12)

(88) Date of publication A3: 15.11.2001 (43) Date of publication: 14.08.2002 Bulletin 2002/33 (21) Application number: 00993103.1 (22) Date of filing: 17.11.2000

(51) International Patent Classification (IPC)7: A01N 61/00, A01N 41/04, A01N 47/04 // (A01N47/04, 61:00), A01N41:04 (86) International application number: PCT/EP0011/529 (87) International publication number: WO 0135/747 (25.05.2001 Gazette 2001/21)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 17.11.1999 EP 99203847 (71) Applicant: Plant Research International B.V. 6708 PB Wageningen (NL)	(72) Inventors: VAN DER KRIEKEN, Wilhelmus, Maria NL-6708 RE Wageningen (NL) VEEN, Borchert, Willem NL-6721 JX Bennekom (NL) KOK, Cornelis, Johannus NL-6544 VT Nijmegen (NL) (74) Representative: Van Someren, Petronella F. H. M. et al Arnold & Siedsma,Advocaten en Octrooigemachtigden,Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)