Site Preparation Study One Step/Oust Mixtures Drs. Jimmie Yeiser and Rick Williams, Stephen F. Austin State University and University of Florida.
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Site Preparation Study
One Step/Oust Mixtures
Drs. Jimmie Yeiser and Rick Williams,Stephen F. Austin State University and University of Florida
INTRODUCTION• OUST EXTRA IS A PRE-MIX BLEND OF OUST XP AND ESCORT
XP
• OUST XP A COMMON PART OF THE FALL SITE PREPARATION TANK MIX
• ESCORT XP IS NOT LABELED FOR THE PREPARATION OF LONGLEAF PINE SITES
• CAN LONGLEAF PINE SITES BE SAFELY PREPARED WITH FALL-APPLIED OUST EXTRA MIXTURES FOR PRE-PLANT WOODY PLANT CONTRL AND POST-PLANT HERBACEOUS WEED CONTROL?
OBJECTIVE
TO COMPARE:
ONESTEP AND ONESTEP PLUS OUST EXTRA MIXTURES WHEN PREPARING LONGLEAF SITES
FOR:
WOODY PLANT SITE PREP CONTROL,
RESIDUAL, POSTPLANT HERBACOUS WEED CONTROL, PLUS
LONGLEAF PINE TOLERANCE AND PERFORMANCE
METHODS
1
1-Piney Point (Jasper County), TX—TEMPLE-INLAND
2
2-Hooper Site (Baldwin County, AL) —Hooper Mathews Property
METHODS
PINEY POINT, TX
PHYSIOGRAPHY HILLY UPPER COASTAL PLAIN
SOIL MODERATELY WELL DRAINED FINE SANDY LOAM (pH=4.7) OVER SILTY CLAY (pH=4.2)
PREVIOUS STAND
NATURAL MIXED PINE WITH HARDWOOD UNDERSTORY
HARVESTED JANUARY 2-9, 2003
Hooper’s, AL
PHYSIOGRAPHY HILLY UPPER COASTAL PLAIN
SOIL MODERATELY WELL DRAINED FINE SANDY LOAM
PREVIOUS STAND
NATURAL MIXED PINE WITH HARDWOOD UNDERSTORY
HARVESTED 2002-3
METHODS
PINEY POINT, TX
SITE PREP #1
FOLIAR SPRAY OF HERBICIDES
23-OCT-03
PLANTED HAND; CONTAINER
21-NOV-03 AND 22-FEB-04
HOOPER’S, AL
SITE PREP #1
FOLIAR SPRAY OF HERBICIDES
23-OCT-03
PLANTED HAND; CONTAINER
21-NOV-03
METHODSPINEY POINT 23-OCT-03
BAREGROUND (20%)
NOTHING
FORBS (5%) BULLNETTLE, COMMON RAGWEED, POORJOE, TROPIC CROTON, AMERICAN BURNWEED
GRASSES (30%) PANICGRASSES, BROOMSEDGE
WOODY (50%) SOUTHERN RED OAK, BLUEJACK OAK, POST OAK, SASSAFRAS, SWEETGUM, PAWPAW, YAUPON
SEMI-WOODY (5%) AMERICAN BEAUTYBERRY, St. ANDREW’S CROSS
BRAMBLES (3%) BLACKBERRY
Hooper’s 23-OCT-03
BAREGROUND (10%)
NOTHING
FORBS (5%) COMMON RAGWEED, St. JOHN’S WORT
GRASSES (40%) PANICGRASSES, BROOMSEDGE, BLUE STEM
WOODY (30%) TURKEY OAK, SOUTHERN RED OAK, BLUEJACK OAK, PERSIMMION
SEMI-WOODY (5%) GALLBERRY, GOPHER APPLE, VACCINIUM
BRACKEN FERN
BRAMBLES (10%) YELLOW JESSAMINE, BLACKBERRY
METHODS
METHODS
COMPETITOR EVALUATIONS
VISUAL; 30 DAT FOR BROWNOUT; APR-OCT 2004 FOR HWC
LONGLEAF EVALUATIONS
VISUAL; 1=GREEN & VIGOROUS GROWTH, 2=GREEN & MOD GROWTH, 3=<25% BROWN PROBABLY LIVE, 4=>25% BROWN PROBABLY DIE, 5=DEAD
Check-None
OneStep - 128 oz/ac
OneStep+NIS - 77 oz/ac
OneStep+Oust Extra+NIS - 77+3 oz/ac
OneStep+Oust Extra+NIS - 77+4 oz/ac
OneStep+Oust Extra+NIS - 77+10.67 oz/ac
NIS = 1 qt Timberland 90 surfactant
TREATMENTS
TREATMENTS
Simulated aerial spray with extended boom
Backpack with CO2 pressure
Nozzles – KL9
Spray width = 25 feet
Hooper Site2004
Hooper Site2005
Control 04
Control 05
Plot 301 04 OneStep 128 oz/ac
Plot 301 05
Plot 302 04 OneStep+NIS 77 oz/ac
Plot 302 05
Plot 303 04 OneStep+Oust Extra+NIS 77+3 oz/ac
Plot 303 05
OneStep+Oust Extra+NIS 77+4 oz/ac
Plot 304 04
Plot 304 05
OneStep+Oust Extra+NIS 77+10.67 oz/ac Plot 305 04
Plot 305 05
PINEY POINT, TX
OneStep+Timberland 90128oz+1qtapplied: 23-Oct-03picture: 21-Apr-04
OneStep+Oust Extra+Timberland 9077oz+4oz+1qtapplied: 23-Oct-03picture: 15-Oct-04
PINEY POINT, TX
OneStep+Timberland 90128oz+1qtapplied: 23-Oct-03picture: 15-Oct-04
OneStep+Oust Extra+Timberland 9077oz+4oz+1qtapplied: 23-Oct-03picture: 15-Oct-04
RAINFALL 2004PINEY POINT, TX
0
2
4
6
8
10
12
14
16
18
20
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2004
30 YR AVG
INCHES OFRAINFALL
RAINFALL 2004 & 2005 Hooper Site, AL
0
2
4
6
8
10
12
14
16
18
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2004 totals2004 totals
2005 totals2005 totals
BROWNOUTPINEY POINT, TX
APPLIED 23-OCT-03 EVALUATED 21-NOV-03
One Step Oust Extra Herbaceous Woody
oz/ac oz/ac
128 0 90a 92a
77 10.67 80a 80a
77 4 80a 87a
77 3 80a 78a
77 0 70a 83a
Check (None) Check ( None)
40b 63b
BARE GROUND & VEGETATION COVER
PINEY POINT, TXAPPLIED 23-OCT-03 EVALUATED 27-APR-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 86.3ab 1.3b 4.3c 4.3a
77 10.67 93.0a 0.3b 6.3c 0.0c
77 4 81.3b 0.0b 15.0b 0.3b
77 3 83.3b 0.0b 11.7b 0.0c
77 0 86.7ab 0.3b 6.3c 3.0a
Check (None) Check ( None)
12.6c 36.7a 40.0a 3.0a
BARE GROUND & VEGETATION COVER
PINEY POINT, TXAPPLIED 23-OCT-03 EVALUATED 27-MAY-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 80.b 7.3b 4.3c 5.0a
77 10.67 90.7a 1.0b 6.3c 0.0b
77 4 81.7b 0.7b 15.0b 0.0b
77 3 81.7b 1.3b 11.7b 0.0b
77 0 85.0ab 2.7b 6.3c 3.0a
Check (None) Check ( None)
9.3c 36.7a 40.0a 4.3a
BARE GROUND & VEGETATION COVER
PINEY POINT, TX
APPLIED 23-OCT-03 EVALUATED 27-JUN-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 56.7c 32.7a 4.7c 6.0a
77 10.67 86.7a 2.7b 8.0c 0.0b
77 4 80.0ab 2.0b 16.7b 0.0b
77 3 73.3b 3.3b 16.7b 0.0b
77 0 76.7b 7.0b 8.0c 3.0a
Check (None) Check ( None)
4.7d 40.0a 40.0a 4.3a
BARE GROUND & VEGETATION COVER
PINEY POINT, TXAPPLIED 23-OCT-03 EVALUATED 27-JUL-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 45.0b 41.0a 8.0c 6.0a
77 10.67 76.7a 7.0b 12.0c 0.0b
77 4 68.3a 4.0b 23.3b 0.0b
77 3 70.0a 3.3b 21.7b 0.0b
77 0 70.0a 9.3b 11.3c 3.0a
Check (None) Check ( None) 4.0c 43.3a 45.0a 4.3a
BARE GROUND & VEGETATION COVER
PINEY POINT, TX
APPLIED 23-OCT-03 EVALUATED 27-AUG-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 26.7b 56.7a 10.0d 6.0a
77 10.67 68.3a 9.3b 20.0cd 0.0b
77 4 60.0a 8.0b 31.7b 0.0b
77 3 66.7a 6.3b 26.7bc 0.0b
77 0 63.3a 14.6b 19.3cd 3.0a
Check (None) Check ( None) 1.7c 46.7a 46.7a 4.3a
BARE GROUND & VEGETATION COVER
PINEY POINT, TX
APPLIED 23-OCT-03 EVALUATED 27-SEP-04
One Step Oust Extra Bare
oz/ac oz/ac Ground Herbs Woody Rubus
APPLICATION DAY 20 35 50 3
128 0 21.7c 60.0a 10.3d 6.0a
77 10.67 63.3a 13.0c 20.0c 0.0b
77 4 58.3a 9.3c 31.7b 0.0b
77 3 50.0b 17.0c 26.7bc 0.0b
77 0 23.3c 46.7b 21.7c 3.0b
Check (None) Check ( None)
1.7d 53.3ab 46.7a 4.3a
SEEDLING PERFORMANCEPINEY POINT, TX
APPLLIED 23-OCT-03 SURVIVAL-2004 CONDITION-2004
One Step Oust Extra Nov Feb Nov Feb
oz/ac oz/ac 27-Apr 27-Apr 27-Apr 27-Apr
128 0 93.3a 100.0a 2.0a 2.4a
77 10.67 95.6a 100.0a 2.6a 2.4a
77 4 100.0a 100.0a 2.1a 2.2a
77 3 100.0a 97.8a 2.2a 2.3a
77 0 95.6a 100.0a 2.1a 2.3a
Check (None) Check ( None) 100.0a 100.0a 1.7a 2.3a
SEEDLING PERFORMANCE Hooper’s Site, AL
APPLLIED 23-OCT-03 SURVIVAL- CONDITION-2004
One Step Oust Extra 2004 2005
oz/ac oz/ac Apr Nov Apr
128 0 93.3a 88.8a 3.1a
77 10.67 92.2a 88.9a 3.0a
77 4 96.7a 95.5a 2.9a
77 3 92.2a 90a 2.9a
77 0 92.3a 90a 3.2a
Check (None)
Check ( None) 88.8a 86.6a 3.1a*Pertaining to foliar injury; 1= vigorous/green, 2= some green, 3= same dull color as planted-light burn,
4= moderate to severe needle burn, 5= dead foliage
SEEDLING PERFORMANCEPINEY POINT, TX
23-OCT-03 SURVIVAL-2004 CONDITION-2004
One Step Oust Extra Nov Feb Nov Feb
oz/ac oz/ac 27-Sep
27-Sep 27-Sep 27-Sep
128 0 68.9a 75.6b 2.5ab 2.5ab
77 10.67 95.6a 91.1a 1.8ab 1.8bc
77 4 95.6a 100.0a 1.5b 1.2c
77 3 97.8a 97.8a 1.8ab 1.9bc
77 0 95.6a 100.0b 2.0ab 1.9bc
Check (None) Check ( None) 88.0a 62.2c 2.8a 3.3a
HARDWOOD CONTROLPINEY POINT, TX
23-OCT-03 Evaluated Sep-04
One Step Oust Extra
oz/ac oz/ac Oak Sweet-
gum
Yaupon Sass-
afras
Misc All
128 0 81.3a 97.7a 12.3a 100a 77.6a 80.2ab
77 10.67 81.0a 96.0a 3.0a 100a 73.5ab 82.8a
77 4 81.0a 91.7a 41.0a 100a 78.9a 72.4ab
77 3 82.7a 98.0a 8.67a 100a 72.9ab 74.8ab
77 0 22.7b 100.0a 10.3a 100a 49.9b 52.0b
Check Check 3.2 0.0 0.0 6.3 4.73 3.1
HARDWOOD CONTROL Hooper’s Site, AL
23-OCT-03 Evaluated Sep-04
One Step Oust Extra
oz/ac oz/ac Oak Sweet-
gum
Yaupon Sass-
afras
Misc All
128 0 82 95 13 100 77 80
77 10.67 81 96 3 100 73 83
77 4 84 92 11 100 79 72
77 3 83 98 7 100 73 75
77 0 23 100 10 100 50 52
Check Check 0.0 0.0 0.0 0.0 0.0 0.0
LONGLEAF YEAR TWOPINEY POINT, TX
23-OCT-03 SURVIVAL GLD
One Step oz/ac
Oust Extra oz/ac
Nov Feb Nov Feb
Nov-05 Nov-05 Nov-05 Nov-05
128 0 64.4ab 71.1ab 0.72ab 0.88ab
77 10.67 73.3ab 86.7ab 0.79ab 0.94a
77 4 88.9a 95.6a 0.97a 1.01a
77 3 88.9a 84.4ab 1.01ab 0.94a
77 0 84.4a 95.6a 1.09a 1.30a
Check (None) Check ( None) 46.7b 53.3b 0.37b 0.40b
LONGLEAF YEAR TWO Hooper’s Site, AL
23-OCT-03 Growth after 2 yrs.
One Step oz/ac
Oust Extra oz/ac
GLD
mm
HT
cm
Out
Nov-05 Nov-05 Nov-05
128 0 33.3ab 38.4a 84.4ab
77 10.67 29.9b 25.5a 83.3ab
77 4 34.5a 38.8a 91.1a
77 3 30.5b 33.6a 80ab
77 0 31.1ab 25.5b 78.8b
Check (None) Check ( None) 15.0c 6.2c 10c
SUMMARY & CONCLUSIONS
• SIMILAR FALL BROWNOUT FOR HERBICIDE TREATMENTS
BARE GROUNDONESTEP 1 QT ONESTEP+OUST EXTRABARE GROUND SAME SAMEHERBS SAME SAMEWOODY LESS MORERUBUS MORE LESS
APRIL
SUMMARY & CONCLUSIONS
BARE GROUND ONESTEP 1 QT ONESTEP+OUST EXTRA
BARE GROUND LESS MORE HERBS MORE LESS WOODY LESS MORE RUBUS MORE LESS
OCTOBER
SUMMARY & CONCLUSIONS
• STARTING THE ROTATION WITH DIFFERENT COMPETITOR COMMUNITIES– ONESTEP+OUST EXTRA PROVIDED MORE BARE GROUND, RUBUS,
AND HERB CONTROL THAN ONESTEP ALONE
• NO VISIBLE HERBICIDE DAMAGE• EXCELLENT SURVIVAL AND HERBICIDE TOLERANCE FOR NOV
& FEB PLANTED SEELDINGS• IN YEAR TWO A LARGER GLD WAS RECORDED FOR NOV THAN
FEB PLANTED SEEDLINGS• ONESTEP+OUSTEXTRA COMBINATIONS FOR PREPARING
LONGLEAF SITES FOR EARLY (NOV) AND LATE (FEB) PLANTING IS A VIABLE OPTION
Treated Seedling in ‘04
Treated Seedling in ‘05
Control Plot Seedling in ‘05
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