site preparation study one step/oust mixtures drs. jimmie yeiser and rick williams, stephen f....

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