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(11)

EP 0 407 473 A1

(12)

(43) Date of publication: 16.01.1991 Bulletin 1991/03 (21) Application number: 89907578.0 (22) Date of filing: 13.06.1989

(51) International Patent Classification (IPC):  A01N 25/ 00( . ) A01N 37/ 48( . ) A01N 57/ 20( . ) A01N 25/ 30( . ) A01N 57/ 00( . ) (86) International application number: PCT/US1989/002570 (87) International publication number: WO 1989/012394 (28.12.1989 Gazette 1989/30)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.06.1988 US 19880206405 (71) Applicant: MONSANTO COMPANY St. Louis Missouri 63167 (US)

(72) Inventors: DAYAWON, Miguel, Molina Des Peres, MO 63131 (US) BOHN, Joseph, Allen Bellefontaine Neighbors, MO 63137 (US) STRIEBEL, Stephen, Michael St. Louis, MO 63136 (US) RAO, Sudabathula, Rajaramamohana Olivette, MO 63132 (US) SANDBRINK, Joseph, Jude Des Peres, MO 63131 (US) BECHER, David, Zachary St. Louis, MO 63141 (US) PETROFF, Lenin, James Bay City, MI 48706 (US) ROMENESKO, David, Joseph Midland, MI 48640 (US) EKELAND, Robert, Alan Midland, MI 48640 (US) DIFATE, Victor, George Clayton, MO 63105 (US) (74) Representative: Lunt, John Cooper  Monsanto Europe S.A. Patent Department Avenue de Tervuren 270-272 Letter Box No 1 B-1150 Brussels B-1150 Brussels (BE)