warm season perennial grass herbicide tolerance. herbicide trial 2008
TRANSCRIPT
WARM SEASON PERENNIAL WARM SEASON PERENNIAL GRASS HERBICIDE GRASS HERBICIDE
TOLERANCETOLERANCE
Herbicide Trial 2008
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
WSP GrassesWSP Grasses VarietyVariety
Big BluestemBig Bluestem NiagaraNiagara
Coastal PanicgrassCoastal Panicgrass AtlanticAtlantic
SwitchgrassSwitchgrass Cave-in-RockCave-in-Rock
IndiangrassIndiangrass Nebraska 54Nebraska 54
Eastern GamagrassEastern Gamagrass PetePete
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
Planted –June 3, 2008Planted –June 3, 2008
PRE treatments – June 10PRE treatments – June 10
Mowed – July 21Mowed – July 21
POST treatments – August 5POST treatments – August 5
Evaluations: % Injury – August 20Evaluations: % Injury – August 20
% Stand – October 24% Stand – October 24
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Injury – 8/20/08% Injury – 8/20/08
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
AAtrex PREAAtrex PRE 1 qt1 qt 2727 00 11 3030 --
AAtrex PREAAtrex PRE 2 qt2 qt 3030 00 00 2525 --
AAtrex POSTAAtrex POST
COCCOC
1.5 qt1.5 qt
1.25 %1.25 %
3333 1313 2727 2020 --
LSD (0.05)LSD (0.05) 1313 1010 1010 1515 --
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Injury – 8/20/08% Injury – 8/20/08
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
PermitPermit
COCCOC
0.67 oz0.67 oz
1.25 %1.25 %
88 2020 1515 1515 --
Cimarron*Cimarron* 0.1 oz0.1 oz 88 66 99 3333 --
Outrider*Outrider* 1.33 oz1.33 oz 1515 2525 3333 4545 --
LSD (0.05)LSD (0.05) 1313 1010 1010 1515 --
* Applied with 0.25% NIS. * Applied with 0.25% NIS.
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Injury – 8/20/08% Injury – 8/20/08
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
Pursuit DG*Pursuit DG* 1.44 oz1.44 oz 1818 3030 6565 2525 --
PlateauPlateau
NISNIS
6 fl oz6 fl oz
0.25 %0.25 %
2020 7878 8585 2828 --
Paramount*Paramount* 8 oz8 oz 2222 1616 2626 1313 --
LSD (0.05)LSD (0.05) 1313 1010 1010 1515 --
* Applied with 1.25% COC and 2.5% UAN 28%. * Applied with 1.25% COC and 2.5% UAN 28%.
Herbicide Trial 2008
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Stand – 10/24% Stand – 10/24
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
AAtrex PREAAtrex PRE 1 qt1 qt 8484 9393 8989 7070 3030
AAtrex PREAAtrex PRE 2 qt2 qt 7777 7373 9393 7373 2424
AAtrex POSTAAtrex POST
COCCOC
1.5 qt1.5 qt
1.25 %1.25 %
5555 9191 8080 7171 1919
UntreatedUntreated -- 5353 8080 6666 5454 1111
LSD (0.05)LSD (0.05) 2525 2727 2121 2525 77
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Stand – 10/24% Stand – 10/24
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
PermitPermit
COCCOC
0.67 oz0.67 oz
1.25 %1.25 %
7979 8383 8484 7272 66
Cimarron*Cimarron* 0.1 oz0.1 oz 8181 8383 8787 5757 88
Outrider*Outrider* 1.33 oz1.33 oz 7676 7272 7575 6161 66
UntreatedUntreated -- 5353 8080 6666 5454 1111
LSD (0.05)LSD (0.05) 2525 2727 2121 2525 77
* Applied with 0.25% NIS. * Applied with 0.25% NIS.
WARM SEASON PERENNIAL GRASS WARM SEASON PERENNIAL GRASS HERBICIDE TOLERANCEHERBICIDE TOLERANCE
RateRate % Stand – 10/24% Stand – 10/24
HerbicidesHerbicides Amt/AAmt/A BBBB CPCP SWSW ININ GGGG
Pursuit DG*Pursuit DG* 1.44 oz1.44 oz 7373 2727 4141 4545 33
PlateauPlateau
NISNIS
6 fl oz6 fl oz
0.25 %0.25 %
8383 66 11 7272 55
Paramount*Paramount* 8 oz8 oz 5656 8282 7474 6868 99
UntreatedUntreated -- 5353 8080 6666 5454 1111
LSD (0.05)LSD (0.05) 2525 2727 2121 2525 77
* Applied with 1.25% COC and 2.5% UAN 28%. * Applied with 1.25% COC and 2.5% UAN 28%.
Herbicide Trial 2008