Studies on the efficacy of some herbicides on the control of weeds in Japanese mint

Abstract

The present investigation was aimed to evaluate the effectiveness of nine herbicides in the control of weeds associated with Japanese mint (Mentha arvensis) crop. The chemical method of weed control used in this investigation was found to be very effective in preventing weed growth in the mint crop. As a result of herbicidal treatment, the weeds underwent a marked reduction in their dry matter accumulation, coupled with a significant increase in the yield of mint herb and mint oil. Of the different herbicides embutox plus applied as post-emergence treatment and tok E-25 applied in the pre-emergence stage were found to be effective weed-killers, contributing a significant increase in mint foliage and oil yields. Telvar was similarly effective on application at the post-emergence stage. Other herbicides,viz., 2, 4-D and bladex-O also yielded useful responses.