SPRAY DRIFT MANAGEMENT
SPOT TREATMENT
WITH HAND OPERATED SPRAYERS (INCLUDING
BACKPACK SPRAYERS, COMPRESSION SPRAYERS,
AND KNAPSACK SPRAYERS)
• Apply any time the emerged broadleaf weeds are actively growing.
• Calibration and proper application are essential when using this product.
• Uniform applications are essential when using this product. Over applica- tion or rates above those specified on this label including excessive over- laps of this product can cause turf injury.
Hand-held techniques: Wands fitted with flat fan nozzle tips may be used with the appropriate technique. Flat fan nozzles should not be waved in a back-and-forth motion, or in a side-to-side motion, or in a swinging arm motion. Instead, the nozzle should be held stationary at the proper height. Side-to-side motions result in uneven coverage.
Follow-up applications as spot treatments at a 2-6 week interval are recommended for more mature weeds, for dense infestations, and for adverse environmental conditions.
For cool-season turfgrass: Mix 1.2-1.5 fl. oz. of this product per one (1.0) gallon of water for treatment of approximately 1,000 sq.ft of turfgrass. Apply any time the emerged broadleaf weeds are susceptible.

Do not apply to agricultural irrigation water or on agricultural irrigation ditchbanks and canals.

Do not apply to agricultural drainage water or on agricultural ditchbanks.

Turfgrass tolerance:

The turfgrass tolerance to this product may vary and temporary turfgrass yellowing may occur on certain varieties of hybrid bermudagrass. Adverse environmental conditions may reduce the selectivity on the turfgrass. Do not apply this product to stressed turf.

Certain spray tank additives (adjuvants, wetting agents, surfactants), liquid fertilizers, and tank mixtures containing emulsifiable concentrates may reduce the selectivity on the turfgrass. Do not use adjuvants and spray additive tank-mix combinations, unless your experience indicates that the tank mixture will not result in turf injury.

Prohibitions:

Do not apply this product to bentgrass greens or tees, carpetgrass, dichondra, legumes, and lawns where desirable clovers are present.

Do not broadcast apply this product when temperatures are above 90°F, some injury may be expected with spot treatments when air temperatures exceed 90°F.

To avoid turf injury, use only on turfgrass that is reasonably free of stress from diseases, insects, excess heat or cold, drought or excess rainfall/ irrigation, shaded areas, low soil pH, nematodes, improper mowing or improper applications of fertilizer and pesticides. Injury can occur if this product is applied under any of these or other stress conditions. Under any of these stress conditions, any turf damage caused by the use of this product is beyond the control of PBI/Gordon Corporation and all risk is assumed by the buyer and/or user.

Not for sale or use in the States of California or New York unless accompanied by supplemental labeling.

For newly seeded areas:

Delay application of this product to grass seedlings until after the second mowing.

For newly sodded, sprigged, or plugged areas:

The application of this product to newly sodded, sprigged, or plugged grasses should be delayed until 3 to 4 weeks after the sodding, sprigging, or plugging operations.

Reseeding interval:

Treated areas may be reseeded 3 weeks after application.

HOW MUCH TO USE

USE RATES AND SPRAY VOLUMES

Generally, the lower application rates within the specified range will provide satisfactory control of sensitive weed species. The higher application rates within the specified range will be required for dense infestations of perennial weeds, for adverse/extreme environmental conditions, or for weeds hardened off or more mature.

The maximum application rate to turf is 0.9 pounds 2,4-D acid equivalent per acre per application per site. The maximum number of broadcast applications per treatment site is 2 per year.

The maximum seasonal rate of sulfentrazone contained in this product with two (2) broadcast applications to turfgrass is 0.074 pounds of sulfentrazone per acre per season. The retreatment interval for sequential broadcast applications of this product on turfgrass is two (2) to six (6) weeks depending upon the growth stages of the target weeds.

TABLE 1. USE RATES FOR SOD FARMS, ORNAMENTAL LAWNS AND TURFGRASS.

SPRAY DRIFT MANAGEMENT

 

 

 

 

RATE

SPRAY VOLUME

Do not apply under circumstances where possible drift to unprotected per-

 

COOL-SEASON TURF

 

 

sons or to food, forage or other plantings that might be damaged or crops

 

 

 

 

 

 

 

 

thereof rendered unfit for sale, use or consumption can occur.

 

 

Kentucky bluegrass, annual

 

 

 

Use the largest droplet size consistent with acceptable efficacy. Formation

 

bluegrass, annual ryegrass

 

 

 

 

perennial ryegrass, tall fescue,

 

 

 

of very small droplets may be minimized by appropriate nozzle selection, by

 

 

 

 

 

red or fine leaf fescues,

 

 

 

orienting nozzles away from the air stream as much as possible and by

 

 

 

 

 

creeping bentgrass and

 

 

 

avoiding excessive spray boom pressure. For ground boom and aerial

 

 

 

 

 

N

 

 

20-220

applications, use medium or coarser spray nozzles according to ASAE 572

 

colonial bentgrass (excluding

 

314-4 Pints/Acre

 

golf greens and tees).

 

Gallons/Acre

 

 

 

 

 

 

(1.2 to 1.5 fl. oz./

definition for standard nozzles or a volume mean diameter (VMD) of

 

E

 

(0.5 to 5.0 Gallons/

 

 

1,000 sq. ft.)

 

 

 

 

 

 

 

300 microns or greater for spinning atomizer nozzles.

 

 

Mixtures of cool-season species

 

1,000 sq. ft.)

 

 

in non-cropland areas

 

 

Make aerial or ground applications when the wind velocity favors

 

 

 

 

 

established for roadside

 

 

 

on-target product deposition. Apply only when the wind speed is less than

 

vegetation management or for

 

 

 

 

 

 

M

 

 

 

or equal to 10 mph. For all non-aerial applications, wind speed must be

 

low maintenance. (Kentucky

 

 

 

 

 

 

I

 

bluegrass, tall fescue, smooth

 

 

 

measured adjacent to the application site on the upwind side, immediately

 

 

 

 

prior to application.

 

 

 

 

bromegrass and orchardgrass)

 

 

 

 

 

 

 

L

 

 

 

Do not make aerial or ground applications into areasCof temperature

 

 

 

 

 

 

WARM-SEASON TURF

 

 

inversions. Inversions are characterized by stable air and increasing temper-

 

 

 

 

 

atures with increasing distance above the ground.EMist or fog may indicate

E

 

 

20-220

 

Hybrid bermudagrass, common

 

234-314Pints/Acre

the presence of an inversion in humid areas. Where permissible by local

 

bermudagrass, zoysiagrass,

 

(1.0 to 1.2 fl. oz./

Gallons/Acre

regulations, the applicator may detect the presence of an inversionBby bahiagrass and buffalograss

 

(0.5 to 5.0 Gallons/

 

1,000 sq. ft.)

producing smoke and observing a smoke layer near the ground surface.

 

 

 

1,000 sq. ft.)

 

 

 

 

P

evaporation rate of spray

 

 

 

 

 

Low humidity and high temperatures increase the

 

 

 

 

 

 

 

A

 

 

 

 

 

droplets and therefore the likelihood of increased spray drift. Avoid spraying

 

Do not apply this product to warm-season turfgrass during spring green-up or in

S

 

 

 

 

 

 

 

 

the fall during the transition period between active growth and dormancy.

during conditions of low humidity and/or high temperatures.

 

 

 

L

 

 

Dormant turf: This product may be applied to fully dormant bermudagrass, fully

All aerial and ground application equipment must be properly maintained

 

and calibrated using appropriate carriers.

 

 

 

 

dormant zoysiagrass, and fully dormant bahiagrass.

 

 

 

 

 

 

 

 

 

 

For ground boom applications, apply with nozzle height no more than 4 feet above the ground or crop canopy.

APPLICATION SCHEDULES

Apply this product to broadleaf weeds that are young and actively growing for the best results. Spring and fall treatments under adequate soil moisture conditions are preferred to the summer treatments. Generally, summer broadcast applications to older, drought stressed weeds are less effective. Fall applications provide improved control for emerged winter annuals and perennials such as henbit, chickweed, clover and ground ivy.

Sequential broadcast applications or follow-up applications as spot treat- ments at a 2-6 week interval are recommended for more mature weeds, for dense infestations, and for adverse environmental conditions.

Spot treatments during the summer may be appropriate for sparse infesta- tions, or as a follow-up treatment, or any time broadleaf weeds are actively growing.

Extremes in environmental conditions e.g. temperature and moisture, soil conditions, and cultural practices may affect the activity of this product. Under warm moist conditions, herbicide symptoms may be accelerated. While under very dry conditions, the expression of herbicide symptoms is delayed, and weeds hardened off by drought are less susceptible to this product.

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Surge Water Broadleaf Herbicide For Turf Spray Drift Management, Application Schedules, Cool-Seasonturf, Warm-Seasonturf