(19)

(11)

EP 0 774 905 A1

(12)

(43) Date of publication: 28.05.1997 Bulletin 1997/22 (21) Application number: 95926966.0 (22) Date of filing: 19.07.1995

(51) International Patent Classification (IPC):  A01N 25/ 18( . ) A01N 53/ 10( . ) A01N 53/ 00( . ) (86) International application number: PCT/EP1995/002881 (87) International publication number: WO 1996/003880 (15.02.1996 Gazette 1996/08)

(84) Designated Contracting States: AT DE ES FR GB GR IT NL PT (30) Priority: 05.08.1994 GB 19940015886 (71) Applicant: AGREVO ENVIRONMENTAL HEALTH LIMITED Hauxton, Cambridge CB2 5HU (GB)	(72) Inventor: MARTIN, Robert Berkhamsted Herts HP4 2DY (GB) (74) Representative: Waldman, Ralph David  AgrEvo UK Limited Patent Department Chesterford Park Saffron Walden Essex CB10 1XL Saffron Walden Essex CB10 1XL (GB)