Photodegradation of Metalaxyl on Pearl Millet

Spraying of commercial wettable powder formulation of metalaxyl on pearl millet leaves resulted in the formation of a number of products. These photoproducts were identified by GC-MS as N-(l-hydroxy-2-rnethoxyethyl)N-(l-carboxymethyl ethyl)-2, 6-dimethylaniline, N-(methoxyacetyl)-2, 6-di (hydroxymethyl)-aniline, N-(methoxyacetyl)-N-(l-carboxymethyl-2-hydroxy ethyl)-2, 6-di (hydroxymethyl)-aniline and N-(methoxyacetyl)-N-(l-carboxymethyl-2-hydroxyethyl)-l, 6-di (hydroxymethyl)-4-hydroxy aniline. No residues could be detected in the harvest samples of pearl millet grains.