... of a deployable product, as well as providing a basis for further investigation into the capabilities of similar systems. UAV spray drift beacon aerial application fieldworker visibility PESTICIDE FORMULATION AND DELIVERY SYSTEMS: 39TH VOLUME 9 STP 1619, 2019 / available online at www.astm.org / doi...

... Spray drift has been a problem for years, and a joint effort to reduce drift has been made by all those involved with agrochemical application, including pesticide and adjuvant industries, regulatory bodies, universities, applicators, equipment and nozzle manufacturers, and farmers. Because...

... The importance of controlling spray droplet size in the minimization of spray drift in the application of agricultural chemicals is widely acknowledged. Self-emulsifying tank-mix additives are an important tool for achieving this control. Understanding how these additives work is key...

... be used in conjunction with oil-emulsion-based DRTs. spray drift DRT wind tunnel droplet size polymer laser diffraction pesticide PESTICIDE FORMULATION AND DELIVERY SYSTEMS: 37TH VOLUME 1 STP 1602, 2018 / available online at www.astm.org / doi: 10.1520/STP160220160155 Logan P. Dempsey,1 J...

... variations in the hydrophilic-lipophilic balance (HLB) of the lecithin component affected the stability of the adjuvant spray solution, as well as the impact on spray drift reduction, droplet adhesion, and herbicide uptake. The lecithins antagonized the spreading and increased the surface tension...

... from the high-speed video experiments. spray drift polyether siloxane drift reduction wind tunnel particle sizing PESTICIDE FORMULATION AND DELIVERY SYSTEMS: 36TH VOLUME 113 STP 1595, 2016 / available online at www.astm.org / doi: 10.1520/STP159520150084 Michael Klostermann,1 Rene Ha¨nsel...

... Drifting of fine droplets during the application of pesticides is an issue of increasing commercial and regulatory importance. Spray drift damages susceptible crops, wastes resources, and results in inconsistent weed control. Several strategies are currently used to mitigate this problem...

.... This methodology is one that can be implemented across a wide variety of plant and pesticide combinations. Collected data from this and future studies will be tested under field conditions and ultimately be included in application decision support systems that integrate spray drift modeling results...

... The determination of spray drift by agrichemicals in field applications is laborious and expensive. Dyes have been used as tracers to reduce workloads and costs, but these methods have technical drawbacks. Metal cations have also been used as tracers and this method is promising, especially...

... glyphosate formulations. The effect of the various treatments on the mass of spray deposited, droplet bounce, and droplet run-off was determined. The polymeric/AMS adjuvant was found to improve the deposition of the commercial glyphosate formulations in that: the loss of active due to spray drift was reduced...

.... fluorescence tracer spray drift deposition wash solution pesticide Journal of ASTM International, June 2005, Vol. 2, No. 6 Paper ID JAI12926 Available online at www.astm.org H. Zhu,1 R. C. Derksen,1 C. R. Krause,2 R. D. Fox,1 R. D. Brazee,1 and H. E. Ozkan3 Fluorescent Intensity of Dye Solutions under...

... Application techniques, spray adjuvants, buffer zones, and windbreaks are all important tools for management of spray drift. However, a wide variety of vegetative types may be used for both buffer zones and windbreaks and therefore it is expected that these might capture the driftable fraction...

..., Cross et al. (2002) in England looked at the efficacy of fungicides and insecticides using three spray drift-reducing methods in orchards, where AI nozzles were one of the treatments. The British researchers found no consistent, statistically significant differences in the biological efficacy...

... nozzles venturi spray drift spray retention adjuvants droplet size Kirsty J. Hall1 Understanding the Performance Characteristics of Air Inclusion Nozzle Technology Reference: Hall, K. J. "Understanding the Performance Characteristics of Air Inclusion Nozzle Technology," Pesticide Formulations...

... and drift research, and provide valuable information for applicators to consider when selecting tank mix-nozzle combinations for the application of agricultural chemicals. Spray drift spray formation application adjuvants spray characterization Paul C. H. Miller, 1A. J. Hewitt, 2 and W. E...

... to the relatively far distance of the first sampling location at 25 ft (7.5 m) from the edge of the application area, and to the fact that most of the wind speeds in the studies were greater than the <10 mph (<16 km/hr) where wind speed effects would be most likely to be most evident. Spray drift...

... for additional resources. Spray drift drift control agent deposition adjuvant polymer droplet size task group Andrew J. Hewitt,xA. J. Stern, 2 W. E. Bagley,3 and R. Dexter4 The Formation of A New ASTM E35.22 Task Group to Address Drift Management Adjuvants* Reference: Hewitt, A. J., Stem, A. J...

... spray drift, canopy penetration, retention, and efficacy. New atomization technologies offer opportunities to change droplet size and carrier volume independently, on-the-go. This is expected to renew interest in the optimization of spray quality in a site- or case-specific fashion. Initial...

.... At high concentrations of surfactant, bubbles of air were observed within captured droplets and the size distribution became bimodal. adjuvants aerial sprays agriculture droplet size distribution dynamic surface tension herbicide spray drift surfactants Robin W. Dexter1 and Ellis W...

... Interactions between some water-soluble polymers used as spray drift control additives in spray tank mixes and a range of anionic, sulfonated surfactants were investigated. Changes in the shear viscosity of the solutions were used as an indicator of interactions. Anionic polymers showed...