Laboratory and field test data are presented to illustrate the effecti
veness of ''MG'' safener derivatives against vernolate injury to corn
plants, and to compare their safener activity with that Of some market
ed safeners of dichloroacetamide type. MG-191 proved to be most active
while other ''MG'' compounds showed safener activity as good as or sl
ightly better than that of dichloroacetamides.