Patent ID: 6201023
Filing Date: 2001-03-13
Classification: A01N,C07C

Abstract:
A method for treating a crop against a disease caused by a nematode, the method comprising the step of applying a combination of a KOH-neutralized solution of H.sub.3 PO.sub.3 and a compound to a portion of the crop, said compound having a formula (I): ##STR10##whereinR.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, C.sub.1-8 alkyl, phenyl, and phenyl-C.sub.1-4 alkyl;R.sub.3 is selected from the group consisting of hydrogen, C.sub.1-23 alkyl, carboxy-C.sub.1-4 alkyl, phenyl-C.sub.1-4 alkyl wherein the phenyl moiety is selected from the group consisting of unsubstituted and monosubstituted by halogen and C.sub.2-23 alkoxycarbonyl-C.sub.1-4 alkyl;R.sub.4 and R.sub.5 are independently selected from the group consisting of hydrogen and C.sub.1 -.sub.8 alkyl;R.sub.6 and R.sub.7 are independently selected from the group consisting of hydrogen, C.sub.1 -.sub.8 alkanoyl, phenyl-C.sub.1-4 alkyl wherein the phenyl moiety is selected from the group consisting of unsubstituted and monosubstituted by halogen, C.sub.2-8 alkoxycarbonyl, CONHR.sub.8 wherein R.sub.8 is selected from the group consisting of hydrogen, C.sub.1-8 alkyl, phenyl, phenyl-C.sub.1-4 alkyl and phenyl-C.sub.2-4 alkyloxycarbonyl; andX is selected from the group consisting of O and S;and salts thereof; said compound being applied in an amount sufficient to induce resistance of the crop to the nematode.