Study of Chemical Control of Yellow Foxtail (Setaria glauca (L.) Beauv.) and Common Dandelion (Taraxacum syriacum boiss.) in Tall Fescue (Festuta arundinacea Schreb.) Turf

Document Type : Research Paper

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Abstract

In order to evaluate chemical control of yellow foxtail (Setaria glauca (L.) Beauv.) and common dandelion (Taraxacum syriacum boiss.) in tall fescue turf, an experiment was conducted during 2006 in Tehran using randomized complete block design with 4 replications and 11 treatments. Treatments for yellow foxtail control were diclofop methyl (Illoxan36% EC) at 2.5 and 3 l ha-1, fenoxaprop-P-ethyl + mefenpyr- diethyl (PumaSuper7.5% EW) at 0.8 and 1 l ha-1, clodinafop propargyl (Topic8% EC) at 0.6 and 0.8 l ha-1, tralkoxydim (Grasp25% SC) at 1 and 1.2 l ha-1, sulfusulfuron (Apyros75% DF) at 27 and 35 g ha-1 and untreated control. Treatments for dandelion control were 2,4-D + MCPA (U46 Combifloied72% SL) at 1.5 and 2 l ha-1, dichlrprop-p + mecoprop-p + MCPP (Duplosan super60% SL) at 2 and 2.5 l ha-1, bromoxynil + MCPA (Bromicide10% SL) at 1.5 and 2 l ha-1, mesosulfuron-methyl + iodosulfuron-methyl-Na (Chevalier6% WG) at 350 and 400 g ha-1, metribuzine (Sencor70% WP) at 750 and 1000 g ha-1 and untreated control. All treatments were repeated 3 times during the growing period of yellow foxtail (29/6/2006, 14/7/2006, 1/8/2006, respectively) and dandelion (20/5/2006, 3/6/2006, 17/6/2006, respecrively). The results showed that, despite low efficacy, Illoxan at 2.5 l ha-1, Pumasuper + mefenpyr- diethyl at 0.8 l ha-1 and Topic at 0.6 l ha-1 (without significant differences between both doses and damage under 20 percent to turf), could be recommended for yellow foxtail control in tall fescue turf. Also, one application of Duplosan super at 2 l ha-1 or 2/4-D + MCPA at 1.5 l ha-1 can control dandelion in turf.

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References

 
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Iranian Journal of Weed Science
Volume 4, Issue 1 - Serial Number 1
September 2008
Pages 1-13

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