Occurrence of Resistance to Diethofencarb Mixtures in Botrytis cinerea on Cucumbers in Gunma Prefecture

Abstract

In 1994, a resistant strain of Botrytis cinerea to diethofencarb mixtures was found for the first time in Gunma Prefecture. From 1994 to 1996, resistant strains to diethofencarb mixtures on cucumber spread throughout the area year after year.