Forest herbicide application provides gains in seedling survival and growth rates by allocating water, nutrients and sunlight to the crop trees. Herbicide use also reduces fire hazard and improves access to timber stands. It can also be used to manipulate and improve wildlife habitat and to control invasive plants.

HERBICIDES

HERBICIDE FORMULATION

APPLICATION RATE

REMARKS & PRECAUTIONS

HERBICIDES FOR SITE PREPARATION

Picloram
(Tordon K)*
2 lbs. a.i./gal.

Broadcast/A
2 qts.

Apply 5-25 gallons spray mix by air or 10 to 100 gallons mix by ground. Do not plant pines sooner than 6 months after treatment.

Fosamine
(Kernite UT)
4 lbs. a.i./gal.

Broadcast/A
2 to 6 qts.

Special Local Need 24(c) Labeling for site pine plantations in the state of Georgia. Apply 2 to 4 qts/A for residual pine seedling control during site preparation if the area can be prescribed burned following application. Apply 4 to 6 qts/A if burning is not possible following treatment.

Triclopyr
(Garlon 3A)
3 lb. a.i./gal.

Broadcast/A
2 - 3 gals.

Conifers planted sooner than 2 months after treatment may be injured.

Triclopyr
(Garlon 4)
4 lb. a.i./gal.

Broadcast/A
4 - 8 qts.

Apply when target vegetation is actively growing. Apply to foliage with 5 - 25 gal. spray volume per acre by air or 10 - 100 gal. by ground.

Picloram + 2,4-D
(Tordon 101M)*
2.5 lb. a.i./gal.

Broadcast/A
6 - 8 qts.

Delay planting of pines for at least 6 months following treatment to avoid pine seedling injury.

Imazapyr
(Arsenal)
4 lbs. a.i./gal.

Broadcast/A
1 1/2 - 2 1/2 pts.

Use a minimum of 1/4% by volume of nonionic surfactant in the spray mix.

Imazapyr (Chopper)
2 lbs. a.i./gal.
Broadcast/A
40 - 80 oz.
Enhance brownup by applying Chopper in a 12-50% oil:water (volume:volume) emulsion carrier. Methylated or ethylated seed oils containing at least 50% esterfied seed oil by volume are recommended.
2,4-D
(various trade names)
Broadcast/A varies by a.i. Check specific product labels for rates. Provides broadleaf weed control. Typically, apply recommended rate in 10 gal. of solution by air or 20 gal. by ground. Do not apply to established plantations as injury to planted pines will occur.

Hexazinone
(Velpar ULW)

Broadcast/A
2 1/2 - 8 lbs.

Herbaceous weeds and plants. Soluble granular formulation. Apply using DuPont ULW Applicator aerial equipment in spring when weeds and brush are actively growing. Rainfall is needed for activation. Use lower rates on coarse texture soils and soil low in organic matter. Do not use on poorly drained or marshy sites. Maximum results will be seen in 12-24 months following treatment. Allow treated brush and trees to defoliate twice before burning.

Hexazinone
(Velpar L)

Broadcast/A
1 - 3 gals.



Broadcast/A
Spot treatment
3 - 12 qts.

Controls herbaceous weeds, brush and trees. Apply liquid mix in at least 5 gal./A by air or 25 gal./A by ground. Treat from bud break in late winter to early summer. Allow brush to defoliate twice before burning.

Apply undiluted Velpar L in a grid pattern (3' x 3' to 4' x 6' grid) as a pre-harvest or site preparation control of hardwoods. Use a spot application of 1 to 3 ml Velpar per spot. Selection of rate and grid will depend on soil texture and wood competition.

Metsulfuron methyl
(Escort XP)

Broadcast/A
1/2 - 4 oz.

For control of blackberry and other broadleaf weeds use 1/2 - 1 1/2 ozs. Use 4 ozs. for control of cherry, locust, palmetto, and honeysuckle. Loblolly and slash pine only. Pines may be transplanted in treated areas in the planting season following application.

Sulfometuron methyl
(Oust Extra)

Broadcast/A
3 - 4 ozs.

Add 0.25% by volume surfactant for improved control. For loblolly and slash pine only. Use lower rates on coarse textured loamy sands, sandy loams soils and higher rates on fine textured sandy clay loam and silty clay loam soils. Apply just before or just after weed emergence and when rainfall will activate Oust in the soil. Pines may be transplanted in treated areas in the planting season following application.

Sulfometuron methyl
(Oust XP)

Broadcast/A
2 - 8 ozs.

Add 0.25% by volume surfactant for improved control. For loblolly, slash, longleaf, and Virginia pine, Use lower rates on coarse textured loamy sands, sandy loams soils and higher rates on fine textured sandy clay loam and silty clay loam soils. Apply just before or just after weed emergence and when rainfall will activate Oust in the soil. Pines may be transplanted in treated areas in the planting season following application.

Glyphosate
(Accord Concentrate)
5.4 lbs. a.i./gal.

Broadcast/A
1.5-7.5 qts.
 
Directed/spot spray 3/4 - 2% by volume

A nonionic surfactant must be used with Accord. For surfactants with more than 50% a.i., mix 2 qts. surfactant per 100 gal. of spray solution. Surfactants less than 50% a.i. mix 4 qts. surfactant per 100 gal. spray solution. Apply to actively growing trees, brush, and weeds after full leaf expansion and before fall color and leaf drop. Aerial broadcast - apply 5-30 gal./A spray volume; ground broadcast - apply 10-60 gal./A spray volume; direct/spot spray - spray to wet foliage.

Glyphosate
(Accord SP)
4 lbs. a.i./gal.

Broadcast/A
2 - 10 qts.

Directed/spot spray 3/4 - 2% by volume

This formulation contains a surfactant & no addition surfactant need be added. Do not use this formulation as an over-the-top pine release treatments as damage to desired conifers will occur. Apply to actively growing trees, brush, and weeds after full leaf expansion and before fall color and leaf drop. Aerial broadcast - apply 5-30 gal./A spray volume; ground broadcast - apply 10-60 gal./A spray volume; direct/spot spray - spray to wet foliage.

Glyphosate (Various trade names) 4 lbs. a.i./gal.

Broadcast/A 2 - 5 qts. Directed/spot spray 3/4 - 2% by volume

Check specific labels for surfactant requirements & mix rates. Apply to actively growing trees, brush, and weeds after full leaf expansion and before fall color and leaf drop. Aerial broadcast - apply 5-30 gal./A spray volume; ground broadcast - apply 10-60 gal./A spray volume; direct/spot spray - spray to wet foliage.

HERBICIDE FORMULATION

APPLICATION RATE

REMARKS & PRECAUTIONS

HERBICIDE TANK MIXES FOR SITE PREPARATION

Triclopyr
(Garlon 4)
+
Imazapyr
(Arsenal)

Broadcast/A
2 - 4 qts.
+

16 - 24 ozs.

Conifers planted sooner than 1 month after treatment may be injured.

Imazapyr
+
Glyphosate
(OneStep)

Broadcast/A
1 gallon

Premixed blend of 0.625 lb a.i. imazapyr and 2.0 lbs a.i. glyphosate (equivalent to 40 oz. of Chopper herbicide or 20 oz. of Arsenal Applicators Concentrate herbicide and 2 qts. of glyphosate). Apply June 15 through October (prior to leaf drop) for hardwood, grass and briar control.

Picloram + 2, 4-D
(Tordon 101M)*
+
Glyphosate
(Accord)

Broadcast/A
6 - 10 qts.


3 - 5 qts.

Allow at least 6 months after treatment before planting pines.

Fosamine
(Kernite UT)
4 lbs. a.i./gal.
+
Imazapyr
(Arsenal)

Broadcast/A
2 to 6 qts.

+

8 to 20 ozs.

Special Local Need 24(c) Labeling for pine plantations in the state of Georgia. For control of residual loblolly pine seedlings and hardwoods during site preparation. Controls ash, blackberry, blackgum, black locust, boxelder, cherry, dogwood, elms, oaks, red maple, sassafras, and sourwood. Apply as a foliar spray from mid- to late summer before leaf color occurs.

Triclopyr
(Garlon 4)
+
Picloram + 2,4-D
(Tordon 101M)*

Broadcast/A
2 - 4 qts.
+

6 - 8 qts.

Allow at least 6 months after treatment before planting pines.

Triclopyr
(Garlon 4)
+
Picloram
(Tordon K)*

Broadcast/A
2 - 4 qts.
+

2 - 2 1/2 qts.

Allow at least 6 months after treatment before planting pines.

Glyphosate (Accord) 4 lbs. a.i./gal.
+
Picloram
(Tordon K)*
Broadcast/A 3 - 5 qts.

+
2 qts./A
Wood brush, trees, and herbaceous weeds mix 2 or more qts. of a nonionic surfactant per 100 gal. of spray solutions. Apply tank mix solution at 10-50 gal./A with ground application, or 5-30 gal./A by aerial (helicopter only) application. Allow 6 months after treatment before planting pine seedlings.

Glyphosate
(Accord)
4 lbs. a.i./gal.
+
 Imazapyr
(Arsenal)

Broadcast/A
3 - 6 qts.

+

2 - 16 oz.

Use lower rates for herbaceous weed control. Higher rates for dense stands or hard to control brush and trees. Use a nonionic surfactant, mix 2 or more qts. nonionic surfactant per 100 gal. spray solution. Ground application - spray 10-60 gal. of tank mix per acre; aerial (helicopter) application - spray 5-30 gal. tank mix per acre. Apply after full leaf expansion until start of fall color.

Glyphosate
(Accord)
4 lbs. a.i./gal.
+
Sulfometuron methyl
(Oust Extra)

Broadcast/A
2 - 5 qts.

+


4 - 8 ozs.

Mix 2 or more qts. nonionic surfactant per 100 gal. of spray solution. Ground application - apply 10-60 gal./A tank mix; aerial (helicopter) application - apply 5-15 gal./Ac. tank mix. Treat after full leaf expansion until start of fall color. Loblolly and slash pine only. Provides herbaceous control in following spring.

Sulfometuron methyl
(Oust Extra)
+
Imazapyr
(Arsenal)
Broadcast/A
4 -8 ozs.

+
5-12 oz.

This controls cherry, dogwood, elms, oaks (red and water), persimmon, sassafras, sweetgum, and suppresses hickory. Loblolly and slash pines may be transplanted in treated areas in the planting season following application. Provides herbaceous control in following spring.
Hexazinone
(Velpar L)
+
Sulfometuron methyl
(Oust Extra)
Broadcast/A
1 - 3 gal.
+
4 -8 ozs.
Apply in late spring to early summer to point of full leaf expansion. Loblolly and slash pines may be transplanted in treated areas in the planting season following application. Velpar rates dependent on soil texture, follow label for specific rates on treatment area.
Metsulfuron methyl
(Escort XP)
+
Imazapyr
(Arsenal)
Broadcast/A
1-2 ozs.

+
10 - 24 oz.
Controls ash, black gum, cherry, hawthorn, honeysuckle, hophornbeam, persimmon, oaks ()red, white and water), sassafras, sweetgum, Vacciniums, suppresses blackberry, dogwood, elms, hickory, and red maple. Loblolly and slash pines may be transplanted in treated areas in the planting season following application.

Glyphosate
(Accord)
4 lbs. a.i./gal.
+
Triclopyr
(Garlon 4)

Broadcast/A
3 - 5 qts.

+

1 - 2 qts.

Mix 2 or more qts. of nonionic surfactant per 100 gal. of tank mix. Apply 10-60 gal. of tank mix per acre by ground application or 5-30 gal. per acre by helicopter. Treat in late spring through early summer.

Hexazinone
(Velpar L)
 +
Picloram + 2,4-D
(Tordon 101M)*

Broadcast/A
1 - 3 gal.
+

1 - 2 gal.

Provides increased control of blackgum, pine sassafras, sourwood, Prunus spp. Apply in late spring to early summer to point of full leaf expansion. When oak, elm, sweetgum, blackberry and prunus are predominant use 1 1/2 - 3 gal. Velpar + 1 gal. Tordon 101M. For blackgum, dogwood, sourwood & red maple control use 1 - 3 gal. Velpar + 1 1/2 - 2 gal. Tordon 101M.

HERBICIDE FORMULATION

APPLICATION RATE

REMARKS & PRECAUTIONS

HERBICIDES FOR INJECTION, DIRECTED & SPOT SPRAY TREATMENTS

2,4-D
(various trade names)

Basal spray

Spray the lower 18-24 inches of plant stem with undiluted spray.

Stump treatment

Spray the bark and root collar area of the stump thoroughly with undiluted spray.

Glyphosate
(Various trade names)

Post directed spray
0.5 - 10% solution

May be applied as a shielded or directed spray to the base of the trees. DO NOT apply over-the-top of desirable seedlings. Severe injury to trees will occur if the spray contacts the foliage. Use a 0.5% solution for control of annual weeds less than 6" tall (add a nonionic surfactant). A1- 2% solution will control perennial weeds. Use 5% solution for annual & perennial weed control if spray coverage is not complete. Use a 5-10% solution for woody brush & trees. Refer to the label for rates and surfactant recommendations for specific perennial weeds.

Hexazinone
(Velpar L)

Basal Soil Treatment
2-4 ml/inch DBH

Apply to root zone of undesirable hardwoods with a handgun application. Use 2-4 ml per inch of tree diameter at breast height on trees to be controlled. Place spots within 3 feet of root collar of trees to be controlled.

Hexazinone
(Velpar L)

Injection

Inject 1 ml of undiluted Velpar L through bark of undesirable trees. Injections should be made at 4" intervals around stem. Treat in summer. Controls black cherry, oaks, red maple, sweetgum.

Imazapyr
(Arsenal or Chopper)

Cut stump Treatment

Use a diluted solution of 6 oz. Arsenal or 16 oz. Chopper + one gal. water and spray or brush on to cambium area inside the bark of freshly cut stump.

Injection

Apply 1 ml of diluted solution (see above) at 1 inch interval cuts through the bark around the tree.

Hack and Squirt or Wide-spaced injection

Spray or brush a diluted Arsenal solution into cuts placed at 2 inch intervals around the tree. If the concentrated solution (25% Arsenal or 50% Chopper) is used make one cut into the stem for each 3 inches of tree diameter and spray or brush the concentrated Arsenal solution into each cut. For example a 3 inch diameter stem will receive 1 cut while a 6 inch diameter stem will receive 2 cuts.

Picloram + 2,4-D
(Pathway, Tordon 101R)

Tree injection

Apply 1 ml of undiluted Pathway through the bark completely around stem at 2-3 inch intervals. Treatment can be made any season. Do not treat maple during spring sap flow. Dogwood and hickory may require application to continuous overlapping cuts around the stem.

Stump treatment

Treat the cambium layer just inside of the bark of freshly cut stumps with undiluted Pathway.

Picloram + 2,4-D
(Tordon 101M)*

Tree injection

Inject 1/2 ml of undiluted Tordon 101M or 1 ml of diluted (1:1 ratio in water) through the bark of undesirable trees at 3 inch intervals around the stem.

Stump treatment

Spray the cambium area inside the bark of freshly cut stump with undiluted or diluted (1:1) Tordon 101M.

Triclopyr
(Forestry Garlon 4)
+
Oil

Thinline or streamline

Tank mix 20 - 30% Garlon 4 + 70 - 80% oil. Apply with a small orifice solid-stream nozzle. Make two streaks across the lower stem of smooth bark hardwoods smaller than 3 inches in diameter. Application can be made in any season. Generally most effective 6 weeks prior to leaf expansion, until 2 months after.

Triclopyr
(Garlon 3A)

Tree injection
Hack & squirt

Inject or spray 1/2 ml of undiluted or 1 ml of diluted (1:1 in water) through bark at 3 - 4 inch intervals around the stem.

Stump treatment

Spray the cambium area inside the bark of freshly cut stumps with undiluted Garlon 3A.

Triclopyr
(Pathfinder II)
0.75 lbs. a.i./gal.

Basal Bark Treatment

Apply undiluted product in low pressure spray to stems less than 6 inches in basal diameter, wetting the lower 12 to 15 inches of stems including root collar. Do not spray to the point of runoff. Applications may be made year-round.

Stump Treatment

Apply undiluted product to the cambium area of freshly cut stumps. Also wet sides of stump to root collar, but not to point of runoff. Apply year-round.

HERBICIDE FORMULATION

APPLICATION RATE

REMARKS & PRECAUTIONS

HERBICIDES FOR PINE RELEASE FROM HARDWOODS

Hexazinone
(Velpar ULW)

Broadcast/A
1 - 4 lbs.

Soluble granular material. Applied using DuPont ULW applicator aerial equipment. Apply in spring when weeds and brush are actively growing. Do not apply to Loblolly pine less than 4 years old since transplanting on coarse textured soils, or less than 3 years from transplanting on fine textured soils. Some conifer mortality may occur if applied when saplings are under stress.

Triclopyr
(Garlon 4)

Directed spray

To release conifers from red maple, sweetgum, oaks and hickory, mix 1-5 gal. Garlon 4 in + water to make 100 gal. of mix. Direct spray to foliage of hardwoods using a backpack sprayer with flat fan nozzle. Hardwoods less than 6 feet tall are most effectively treated. Treatment can occur any time after hardwoods reach full leaf and before onset of fall color. Direct spray away from desirable conifer foliage.

2 - 4 qts/A

Broadcast application for mid-rotation understory brush control in flatwoods pine stands. For control of gallberry & wax myrtle apply 2 - 4 qts of Forestry Garlon 4 to to cover the foliage of understory competition, but DO NOT spray onto pines.  Make applications from late summer (August) to fall (before leaf fall). Apply 30 gallons of water per acre.  Forestry Garlon 4 may be tank mixed with Arsenal or Escort to increase control of palmetto, titi, fetterbush etc.

Hexazinone
(Velpar L)

Broadcast/A
Spot Grid Treatment
2 - 8 qts.

Apply undiluted Velpar L on a grid pattern (3' x 3' to 6' x 7') to transplants 1 year old or 4 years and older. Injury may occur if pines are 2-3 years old. Use an application of 2 - 2.33 ml per spot depending on soil texture.

Broadcast/A
2 - 8 qts.

Apply when Loblolly pine is between flushes or growth spurts and from early spring to early summer when hardwoods are in 1/2 leaf to point of full leaf growth. Do not use a surfactant. Some pine mortality may occur, and some pines may show discolored foliage. 1 - 2 inches of rain are needed for soil activation.

Metsulfuron methyl
(Escort XP)

Broadcast/A
1 - 4 oz.

Release of loblolly & slash pine from hardwoods and brush. Apply over-the-top of established trees.

Metsulfuron methyl
(Escort XP)
+
Imazapyr
(Arsenal)

Broadcast/A
1 - 2 oz.

+
8 - 16 ozs.

In 2 year old Loblolly pine plantations controls blackberry, blackgum, elm, cherry and broadleaf weeds. Apply with 1 qt. surfactant in 100 gal. in late summer, early fall.

Metsulfuron methyl
(Escort XP)
+
Sulfometuron methyl
(Oust XP)

Broadcast/A
to 1- oz.

+

2 to 3 oz.

Release of loblolly and slash pine from hardwoods and brush. Treat when pines are at least 3 years old on fine textured soils, 4 years and older on coarse textured soils. Apply from full leaf to just before leaf tissue hardens in the fall.

Metsulfuron methyl
(Escort XP)
+
Hexazinone
(Velpar L)

Broadcast/A
1 - 2 oz.
 
+

1 1/2 - 6 qts.

Brush and herbaceous weed control in loblolly and slash pine plantations. Do not use a surfactant. Treat when pines are at least 3 years old on fine textured soils, 4 years and older on coarse textured soils.

Glyphosate
(Accord Concentrate)
+
 Imazapyr
(Arsenal)


Broadcast/A
3/4 - 1 1/2 qts.
+

2 - 16 oz.

Apply after final resting buds have formed on conifers in the fall. Actively growing conifers will be damaged. Follow Accord label recommendation for surfactant use. Will control wood brush, trees, and herbaceous weeds.

Glyphosate
(Accord Concentrate)

Broadcast/A
1 1/8 -1 7/8 qt.

For release from herbaceous weeds and woody sprouts in Loblolly and slash pine plantations which have been established for more than one year. Mix up to 20 fluid oz. /A of Entry II or comparable nonionic surfactant. Apply in late summer to early fall after pines have hardened off. For applications at end of first growing season, use 3/4 qt. of Accord concentrate.

Imazapyr
(Arsenal)

Broadcast/A
12-20 oz.

Release loblolly pine in first growing season following planting or for one-year old natural loblolly pine regeneration. Apply after July 15.

Directed spray
1/2 - 5% solution

Apply to foliage and buds of undesirable hardwoods competing with pines by a low-volume directed spray. Avoid application to foliage of desirable pines. Use a nonionic surfactant at 1/4% by volume.

Broadcast/A
12 to 16 ozs.

For slash and longleaf pine, broadcast release treatments over the top of pines to control hardwoods must be made after August 15 and ONLY in stands 2 through 5 years old. DO NOT use a surfactant and use the lower rate on sandy soils.

Triclopyr
(Garlon 3A)

Directed spray

Release conifers from red maple, sweetgum, oaks, ash and hickory, mix 1-5 gal. of Garlon 3A in 100 gal. water + a nonionic surfactant. Apply as a directed spray to the foliage of weed trees with a backpack sprayer. Treat after hardwoods have leafed out and before fall coloration. Hardwoods less than 6 feet tall are most economically and safely treated. Direct spray away from foliage of desired pines.

Triclopyr
(Pathfinder II)
0.75 lbs. a.i./gal.

Streamline Basal Bark Treatment

Apply undiluted product in a directed straight-stream spray to one side of stems less than 3 inches in basal diameter to treat a 6 inch wide zone on the stem 1 to 2 feet above ground. On stems 3 to 4 inches in basal diameter, treat both sides of the stems. Apply in spring 6 weeks prior to hardwood leaf expansion until 2 months after leaf expansion is completed.

HERBICIDE FORMULATION

APPLICATION RATE

REMARKS & PRECAUTIONS

HERBICIDES FOR HERBACEOUS WEED CONTROL IN PINE PLANTATIONS

Atrazine
(AAtrex Nine-0 & other trade names)*
or
(AAtrex 4L & other trade names)*

Broadcast/A
2.2 - 4.4 lbs. Nine-0

or
4 - 8 pts. 4L

For annual broadleaf and grass weed control in Loblolly and slash pine plantations. Apply to established trees between fall and early spring. For new transplants apply during or soon after transplanting.

Fluazifop-P-butyl
2.0 lb. a.i./gal.
(Fusilade DX)

Broadcast/A
16 - 24 oz.

Grass control: Apply to actively growing nonstressed grasses 2-8 inches tall. Perennial grasses such as bermudagrass may require second application to regrowth. Add 1% crop oil concentrate (2 pt./25 gal.) or 0.25% ( pt. per 25 gal.) nonionic surfactant to all applications. Avoid contact with conifer foliage by directing spray.

Imazapyr
(Arsenal)

Broadcast/A
4-10 oz.

For herbaceous weed control in Loblolly and Virginia pine plantations use 6-10 oz./A Arsenal. In slash pine use 4-8 oz./A and in longleaf pine use 4-6 oz./A without adding a surfactant. Apply as a broadcast or directed spray. For loblolly pine, a nonionic surfactant may be added at a 1/4% by volume rate. Some pine growth inhibition may occur if treatment is made during active periods of pine growth. Best control is achieved by application to newly emerged weeds.

Imazapyr
(Arsenal)
+
Sulfometuron methyl
(Oust XP)
Broadcast/A
4-6 oz.
+
2 ozs.
To control bermudagrass and Johnsongrass in loblolly pine. Apply later winter through early spring when weeds first emerge.
Imazapyr
(Arsenal)
+
Metsulfuron methyl
(Escort XP)
Broadcast/A
4 ozs.
+
1/2-2 ozs.
To control many broadleaf weeds, blackberry and supression of hardwood sprouts in loblolly pine. Apply later winter through early spring when weeds first emerge.

Metsulfuron methyl
(Escort XP)

Broadcast/A
0.5 - 1 1/2 oz.

For blackberry and annual broadleaf weed control in Loblolly & slash pine plantations. Do not use a surfactant on trees 1 year old or less. In older trees add 1 qt. surfactant per 100 gal. water. Treat when weeds have reached point of full leaf and before tissue hardens off.

Clethodim
(Envoy)
0.94 lbs. a.i./gal.

Broadcast/A
13 to 17 ozs. Annual grasses
17 to 34 ozs. Perennial grasses

Apply over the top control of pine seedlings for postemergence control of annual and perennial grasses. This product will not control broadleaves or sedges. Use a crop oil concentrate containing at least 15% emulsifier at 1% v/v (not less than 1 pt. acre).

Sethoxydim
(Vantage)

Broadcast/A
2 1/4 - 3 3/4 pts.

For post emergence control of actively growing grasses. Vantage can be broadcast or band sprayed over conifer seedlings. A surfactant or crop oil is not needed.

Pendimethalin
(Pendulum)

Broadcast/A
2.4 to 4.8 qts

Use low rates for short-term weed control (2-4 months) and higher rates for long term weed control (6-8 months). Apply over-the-top of loblolly & slash pine after plant slits have sufficiently closed to prevent contact of Pendulum with roots. Pendulum must be applied to weed-free soil to provide pre-emergent weed control & will not control weeds already germinated.

Sulfometuron methyl
(Oust XP)

Broadcast/A
2 - 8 oz.

Controls herbaceous weeds in Loblolly, slash, longleaf and Virginia pine. Do not use a surfactant. Use broadcast or band application before or just after weed emergence. Check soil pH before application. Reduce rate or do not apply if pH is 6.5 or above.

Sulfometuron methyl
(Oust XP)
+
Atrazine
(Various trade names)
(Nine-0)*
or
(4L)*
Broadcast/A
2 - 4 oz.

+


2.2-4.4 lbs.
Nine-0
or
4-8 pts. 4L
Controls annual broadleaf weeds and grasses in Loblolly and slash pine plantations. Use higher rate on medium to fine textured soils when organic matter exceeds 2%. Use a minimum of 20 gal. of spray mix per acre by ground application only as preemergence or early post emergence spray. Check soil pH and soil organic matter before application. Reduce rate or do not apply Oust if pH is 6.5 or above.

Sulfometuron methyl
(Oust XP)
+
Hexazinone
(Velpar L)

Broadcast/A
2 - 4 oz.

+

2 - 3 pts.

For use in Loblolly, slash, and longleaf pine plantations. Controls grasses and broadleaf weeds. Do not use a surfactant with this tank mix. Make broadcast, band or spot application from late winter to late spring. Do not apply when pines are under stress. Check soil pH and soil organic matter before application. Reduce rate or do not apply Oust if pH is 6.5 or above. If soil organic matter is less than 2% apply only 21 oz. of Velpar.

Sulfometuron methyl
+
Hexazinone (Oustar)
Broadcast/A Rates vary by soil texture & seedling age Check soil pH and soil organic matter before application. If pH is 6.5 or above, or soil organic mtter is less than 2% apply only 10 oz. of Oustar.
Soil Texture 1st Year Weed Control 2nd Year Weed Control
Coarse Textured
Loamy sand
Sandy loam
Sand

10 - 12 oz. per acre 12 - 16 oz. per acre
Medium Texture
Loam
Sandy clay loam
Silt loam
12 - 16 oz. per acre 16 - 19 oz. per acre
Fine Texture
Clay loam
Sandy loam
Silty clay loam
Silty clay
16 - 19 oz. per acre 18 - 24 oz. per acre
Fine Textured
Clay
Not recommended Not recommended

Sulfometuron methyl
(Oust XP)
+
 Metsulfuron methyl
(Escort XP)

Broadcast/A
2-3 oz.
+
0.5 - 1.5 oz.

For control of blackberry and herbaceous weeds in loblolly and slash pine plantations. Apply from late winter through spring after soil has settled after planting. Do not use a surfactant.

* Restricted use pesticide