Effect of Traisulfuron (Logran 20 WG) on Non-grassy Weeds and Wheat Yield

摘要

Long term continuous use of isoproturon and other herbicides like clodinafop-propargyl, diclofopmethyl and fenoxaprop-p-ethyl in wheat may result in shift in weed flora favouring non-grassy weeds as these herbicides are not effective on them (Punia etal., 2002, Singh et al., 2003). The commonly known non-grassy weeds infesting wheat fields are Chenopodium album, Melilotus alba, Melilotus indica, Medicago denticulata, Lathyrus aphaca, Vicia savita, Vicia hirsuta, Fumaria parviflora, Anagallis arvensis and Coronopus didymus. Rumex spp. is being also observed in wheat fields for the last 2-3 years. 2,4-D is the commonly used herbicide against non-grassy weeds in wheat, which is not very effective on L. aphaca, M denticulata, M indica, C. didymus and Rumex spp. Therefore, there is necessity to find out alternative to 2, 4-D with wide control spectrum. The present study was conducted to evaluate bio-efficacy of traisulfuron in wheat against non-grassy weeds.