Evaluation of the efficacy and selectivity of Pyroxsulam to control broadleaf and grassy weeds in wheat fields

Abstract

Two field experiments were carried out during 2007 ــ 2008 season at the Agriculture college / Abu ــ Ghraib and Sada station at Ramadi city , to evaluate the efficacy and selectivity of Pyroxsulam at rate 300 , 450 , 600 ml / ha to controlling broadleaf and grassy weeds in wheat fields , compared at the recommended rate of Cheaviler 300 gm / ha . Results revealed at the Agriculture college that the Pyroxsulam at all rates was highly effective in controlling both types weeds in wheat . No significant differences were found between Pyroxsulam and Cheaviler at characteristics studies . The results showed that all herbicides treatments were better than the control experiment . Plants , Wild beets , Wild radish , Toothed medic , Sweet clever, Cheese weed , Common Bishops weed , Wild carrot , Wild oats , Rigid rye grass and Lesser canary grass have been found suscepitible to Pyroxsulam , Wild safflower , Wall goosefoot and Milk thistle were moderately suscepitible , while Field bindweed was tolerant . Results showed also in Ramadi city that Pyroxsulam was highly effective to controlling the weeds and divided between suscepitible or tolerant .