I've been working on getting switchgrass established as a visual barrier to the public road down the way from this plot, one of the weeds that can out compete switchgrass is foxtail. The 12' bands of switchgrass here on FrontPad plot got heavily infested with foxtail which was still in the dough stage of seed development on 21 Aug.
Quinclorac 1.5L must be used with Methylated Seed Oil (MSO) to target foxtail and other noxious grasses/weeds. The application rates are somewhat strict or you'll harm/kill the switchgrass you are trying to recover. The switch must have 3 to 4 leaves off the main stem usually 2 y/o switchgrass or the quinclorac/MSO will kill your young switch.
I sprayed on 21 Aug. Effects pics below are on 30 Aug.
Application rate was 64oz of Quinclorac 1.5L/acre+ 32 oz of MSO/acre and 20Gal water/acre (for the Fimco 7 nozzle sprayer that's 40psi@3mph)
I knew I'd overspray a foot or two of the legumes but wanted to terminate the foxtail starts that were in that edge. As you can see below the quinclorac smoked the legumes and is terminating the foxtail. The switch is still dark green, where I didn;t overlap the spary. Where I did about 20'x2' I might have burnt the swtich... we'll see. The foxtail, other weeds, and everything else that got hit or overlapped spray areas are browning up.
Hit this plot and two other areas where the switchgrass has a larger footprint next to bedding/travel areas for about a 1/2 acre total.
Quinclorac 1.5L must be used with Methylated Seed Oil (MSO) to target foxtail and other noxious grasses/weeds. The application rates are somewhat strict or you'll harm/kill the switchgrass you are trying to recover. The switch must have 3 to 4 leaves off the main stem usually 2 y/o switchgrass or the quinclorac/MSO will kill your young switch.
I sprayed on 21 Aug. Effects pics below are on 30 Aug.
Application rate was 64oz of Quinclorac 1.5L/acre+ 32 oz of MSO/acre and 20Gal water/acre (for the Fimco 7 nozzle sprayer that's 40psi@3mph)
I knew I'd overspray a foot or two of the legumes but wanted to terminate the foxtail starts that were in that edge. As you can see below the quinclorac smoked the legumes and is terminating the foxtail. The switch is still dark green, where I didn;t overlap the spary. Where I did about 20'x2' I might have burnt the swtich... we'll see. The foxtail, other weeds, and everything else that got hit or overlapped spray areas are browning up.
Hit this plot and two other areas where the switchgrass has a larger footprint next to bedding/travel areas for about a 1/2 acre total.
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