Angela R. PostExtension Weed Science

Oklahoma State University

Source: Crop Life 

>150

151‐250

251‐350

351‐450

451‐550

>551

1 micron = 1/25,000 i h

Application determines optimum droplet sizeDroplet size

Contactinsecticidefungicide

Systemicinsecticidefungicide

Contactherbicide

Systemic herbicide

Soil‐appliedherbicide

Soil‐incorp.herbicide

VFF

M

C

VC

XC

Sensitivity to drift

Depends on crop, variety, growth stage, 

and herbicide

Sensitive growth stagesCrop Growth stageWheat Seedling, jointing, floweringCotton Seedling, squaringCorn Seedling, tasselingSoybean Seedling, floweringCanola Seedling, flowering

How far can a droplet drift?

400 microns

150 microns

100 microns

50 microns

8 ft

22 ft

48 ft

178 ft

3 mph wind from height of 10 feet

Nozzle TypesFlat Spray Tips:• Extended Range Flat‐fan• Drift Reduction Flat‐fan• Turbo Flood Flat‐fan• Turbo Flat‐fan• AI Flat‐fan• TurboDrop

XR, Extended Range FF TT, Turbo Tee AIXR, Air Induction XR

5

110° flat fan 02, 04, 06 nozzlesOperated at 40 psi, 12 mph

FINE MEDIUM

10

15

COARSE

MEDIUM COARSE X COARSE

MEDIUM COARSE X COARSE

GPA

1 inch

XR Flat‐fan compared to Turbo Flat‐fan in 5 MPH wind:

40 psi

XR Flat-fan @20, 40, 80 PSI Turbodrop XL @20, 40, 80 PSI

Under

Boom

Drift @

5 MPH

10 ft

XR Flat-fan @20, 40, 80 PSI Turbodrop XL @20, 40, 80 PSI

Under

Boom

Drift @

5 MPH

10 ft

Extended Range Flat‐fan• Tapered edge pattern• 80 and 110 degree fan• Requires overlap ‐ 50 to 60%• 15‐60 psi range

110°

80°

Turbo Flat‐fan Turbulence chamber as in the Turbo Flood Tapered edge, wide angle flat pattern Designed to work in flat-fan nozzle holder Uniform spray distribution, 50-60% overlap Wide pressure range, 15 – 90 psi Large, drift resistant droplets Plastic with superior wear characteristics

XR

TT

Turbo Flood Nozzle vs. Old Style Flood• Pre‐orifice design • Turbulence chamber• Uniform spray distribution with tapered edge – 50‐60% overlap

• Large, drift resistant droplets

TF

Flood

• Tolerance to the p-Hydroxyphenylpyruvatedioxygenase (HPPD) herbicides and to Glufosinate

Mesotrione Glufosinate IsoxaflutolePending Regulatory Approvals

• Tolerance to the isoxaflutole and glyhosate

Pending Regulatory Approvals

ROUNDUP READY® XTEND CROP SYSTEM

Greater Flexibility, Weed Control and Yield Potential

Innovative Traits

Enhanced Chemistry Options

This information is for educational purposes only and is not an offer to sell Roundup Xtend™, Xtendimax™ , Bollgard II® XtendFlex™ or Roundup Ready 2 Xtend™.  These products are not yet registered or approved for sale or use anywhere in the U.S.

Pending Regulatory Approvals

Pending Regulatory Approvals (2015)

The right nozzles can maximize product performance by managing the interaction between application volume, nozzle flow rate, nozzle type, operating pressure, travel speed, nozzle spacing and droplet size category. 

“Allowable nozzles and operating pressure (PSI)” details nozzles and pressures that are allowed for use when applying Enlist Duo™ herbicide. Do not use any nozzle and pressure combination not specifically listed on the Enlist Duo herbicide label and in “Allowable nozzles and operating pressure (PSI)”; in case of conflict, the label prevails.

Label Language

GreenLeaf Technologies TurboDropAsymmetrical Dual fan

Balance of coverage, canopy penetration, and drift control

GreenLeaf TDXL-D series

Questions?Angela Post

Twitter @OSUWeedScienceangela.post@okstate.edu

www.weedscience.okstate.eduOffice 405‐744‐9588