Department of Agronomy, Punjab Agricultural University, Ludhiana-141 004, (Punjab), India.
Field experiments were conducted at the Research Farm, Department of Agronomy, Punjab Agricultural University, Ludhiana during 2004 to 2006. The results of three years indicated that pre-emergence application of oxyfluorfen at 145, 176, 206, 235 and 265 g/ha proved very effective for suppressing weeds of mentha and all these treatments were found statistically similar to recommended treatment i. e pendimethalin at 750 g/ha. Similarly, herb and oil yield under the treatments of oxyfluorfen were found similar to the already recommended herbicide pendimethalin. All the treatments of oxyfluorfen were found similar to two hand weedings treatment with respect to weed control and production of herb yield and these were found to be significantly superior to unweeded (control) treatment. Oil and menthol content (%) was not influenced with the application of these herbicides.
