Volume 13, Issue 47 (fall 2009)                   2009, 13(47): 219-230 | Back to browse issues page

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Zabihollahi V, Maighany F, Baghestany M, Mirhady M. A Study of Postemergence Herbicides Efficacy for Goosegrass (Eleusine indica (L.) Gaertn.) Control in Tall Fescue (Festuca arundinacea Schreb.) Turf. Journal of Crop Production and Processing 2009; 13 (47) :219-230
URL: http://jcpp.iut.ac.ir/article-1-1048-en.html
, fmaighany@yahoo.com
Abstract:   (20455 Views)
To study the goosegrass (Eleusine indica (L.) Gaertn.) in tall fescue (Festuca arundinacea Schreb.), an experiment in 15-year old turf was conducted during 2006 in Tehran in Sheikh Fazlollah highway using randomized complete block design with 4 replications in 1*1 m2 plots. Treatments were diclofop methyl at 2.5 and 3 Lha-1, fenoxaprop-p-ethyl at 0.8 and 1 Lha-1, clodinafop propargyl at 0.6 and 0.8 Lha-1, tralkoxydim at 1 and 1.2 Lha-1, sulfosulfuron at 27 and 35 gha-1 and untreated control. All treatments were repeated 3 times during the growing period of goosegrass. The results showed that after the last spraying, diclofop methyl at 2.5 and 3 Lha-1, fenoxaprop-p-ethyl at 0.8 and 1 Lha-1, clodinafop propargyl at 0.6 and 0.8 Lha-1 decreased goosegrass's biomass up to 81, 83.64, 81.26, 78.58, 80.27 and 81.26 percent, respectively and goosegrass's density up to 82.5, 83.13, 79.38, 79.38, 78.75 and 80.63 percent, respectively, without significant differences. Treatment after 2 times of spraying controlled goosegrass more than 80 percent. Tralkoxydim and sulfosulfuron decreased goosegrass' biomas and density about 70 and 60 percent, respectively. One week after the last spraying, diclofop methyl, fenoxaprop-p-ethyl and clodinafop propargyl treatments did not decrease tall fescue's biomass without significant differences with untreated control. Turf biomass was decreased by tralkoxydim at 1 and 1.2 Lha-1 and sulfosulfuron at 27 and 35 gha-1, by 37.54, 36.79, 40.48 and 48.55 percent, respectively. Herbicide treatments made visual rating by 49.38, 48.75, 48.75 and 50.63 percent, respectively. Overall, diclofop methyl at 2.5 Lha-1, fenoxaprop-p-ethyl at 0.8 Lha-1 and clodinafop propargyl at 0.6 Lha-1 can be recommended for goosegrass control in tall fescue because of insignificant differences between both their doses, bio-environmental problems, costs, and no damage to tall fescue.
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Type of Study: Research | Subject: General

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