Drift control polymers and formulation type affect volumetric droplet size spectra of propanil sprays

Apodaca, M. A.; Sanderson, Robert; Huddleston, Ellis W.; Clason, Dennis L.; Hewitt, Andrew; Ledson, T. M.; Ross, J. B.; Ortiz, M. I.

doi:10.1080/03601239609373041

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…Other researchers have observed differences between spray droplet movement with various drift control agents (Apodaca et al 1996;Hanks 1995;Ozkan et al 1994;Sanderson et al 1994). These studies examined parameters such as volume median diameters and tests were conducted in wind tunnels and did not examine the biological activity of the resulting spray drift.…”

Section: Resultsmentioning

confidence: 99%

“…Previous research has focused on reducing spray drift by altering sprayer variables to create larger droplet size, such as spray nozzles, spray pressure, or spray adjuvants (McMullen 2000;Mueller and Womac 1997;Ramsdale and Messersmith 2001a). Other variables include herbicide formulations (Apodaca et al 1996;McMullen 1995;Mueller and Womac 1997).…”

Section: Introductionmentioning

confidence: 99%

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Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

VanGessel¹,

Johnson²

2005

Weed Technology

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Spray drift to unintended areas is more of a concern as applications of nonselective herbicides associated with herbicide-resistant crops and the proximity of residential land to agricultural land increase. This research evaluated the benefit of three commercial drift control agents for effectiveness in reducing drift in 19 to 24 km/h wind and their potential effect on weed control. The drift control agents were added to a spray mixture of glyphosate at 0.8 kg ae/ha applied in 140 L/ ha and applied with either flat-fan or flood nozzles. None of the drift control agents reduced drift compared with the spray mixture without drift control agent over a distance of 6 m, as measured by water-sensitive cards or grain sorghum bioassay, regardless of nozzle type used. In a separate study, drift control agents did not reduce the weed control of glyphosate or acifluorfen.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

VanGessel¹,

Johnson²

2005

Weed Technology

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“…Emulsion formulations produce a more coarse droplet spectra than other formulations (Miller and Ellis 2000). Surfactants and other adjuvants are commonly added to spray mixtures to increase efficacy (Sharma and Singh 2001;Woznica et al 2003), and researchers have found that the type and quantity of these adjuvants influence droplet size (Akesson et al 1994;Apodaca et al 1996;Mueller and Womac 1997).…”

Section: Introductionmentioning

confidence: 99%

Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition¹

Sciumbato

Senseman²,

Ross³

et al. 2005

Weed Technology

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Studies were conducted on the campuses of Texas A&M University in College Station, TX, and New Mexico State in Las Cruces, NM, to determine the spray droplet size spectra produced by quinclorac and 2,4-D as the liquid, dry, and emulsion formulations during application with various nozzle sizes using a laser spectrometer. Quinclorac and 2,4-D formulations were also sprayed through three different nozzle sizes in a drift chamber and allowed to settle on glass slides placed downwind. The amounts of each herbicide deposited on the slides were quantified using high-performance liquid chromatography/photodiode array (HPLC/PDA) analysis to assess spray deposition of each formulation at different wind velocities. Data from the laser spectrometer suggested that formulations of 2,4-D affected droplet size, particularly when the 380 ml/min flat-fan nozzle was used. Quinclorac droplet sizes were similar to water regardless of nozzle size. Liquid and dry-formulated 2,4-D tended to be deposited downwind in greater quantities than the emulsion formulation when using the 380 and 760 ml/min spray nozzles with wind velocity of 15 km/h.

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Acrylic Polymers as Rheology Modifiers for Water‐based Systems

Hawe¹

2007

Handbook of Industrial Water Soluble Polymers

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Drift control polymers and formulation type affect volumetric droplet size spectra of propanil sprays

Cited by 4 publications

References 1 publication

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition¹

Acrylic Polymers as Rheology Modifiers for Water‐based Systems

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Drift control polymers and formulation type affect volumetric droplet size spectra of propanil sprays

Cited by 4 publications

References 1 publication

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance1

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance1

Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition1

Acrylic Polymers as Rheology Modifiers for Water‐based Systems

Contact Info

Product

Resources

About

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

Evaluating Drift Control Agents to Reduce Short Distance Movement and Effect on Herbicide Performance¹

Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition¹