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Integration of Spray Quality Information. by Tim Stuenkel Applications Engineer,. Why Measure Drop Size?. Drift vs. Efficacy Pesticide labeling regulations Provide basic spray quality information to the end user . Drop Size Measurements. Reference tips are acquired and tested
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Integration of Spray Quality Information by Tim Stuenkel Applications Engineer,
Why Measure Drop Size? • Drift vs. Efficacy • Pesticide labeling regulations • Provide basic spray quality information to the end user
Drop Size Measurements • Reference tips are acquired and tested periodically • In house laser equipment is used for measurements (Malvern, PMS, PDPA) • Tips are analyzed at various pressures and locations in the spray pattern
Droplet Size Calculations • Raw droplet size data is curve fitted • Curve fit data is used to create graphs for each individual tip • Graphs are overlaid on reference template to assign droplet size categories
XC VC C M F VF
TT11002-VP @ 30 psi XC VC C M F VF TT11002-VP @ 60 psi
How is Data Published? • Tabular Drop Size Charts DS37043-19.PDF • Graphical Drop Size Charts DS11825-81.pdf • Droplet Size Category Charts BG201-1-15.pdf
Where is Data Published? • Hard copies available • Catalogs and Buyer’s Guides • Websites
Conclusion • Data is necessary to educate the end user • Droplet size charts are becoming the accepted standard • Drop size data is available in various formats