Studies—Deposition, Application Equipment, Spray Adjuvants, and Validation Test Methods



Regulatory authorities as well as many other public and private entities have conducted numerous studies for a variety of purposes related to spray drift.  These studies may focus on or characterize spray drift deposition, spray drift potential from different application equipment or spray adjuvants.  Additionally, there are test protocols (methods) for measuring spray drift potential.  The following links are to such studies posted by regulatory authorities on their websites.


 Belgium I  Germany I Netherlands I  UK





Belgian research consortium: 


This Belgian research consortium has many years of experience with spray drift measurements (field, wind tunnel & PDPA laser) and drift models for field crop sprayers. The effect of spray application technique, crop characteristics, meteorological conditions, spray liquid properties and border structures on spray drift were studied using an integrated approach. Research results are disseminated through numerous scientific publications and presentations.







Federal Office of Consumer Protection and Food Safety (BVL


Information (in German) on JKI website 

  • Measuring direct Drift when applying liquid Plant Protection Products outdoors
  • Procedure for the registration of plant protection equipment in the chapter "drift" of the register "loss reducing equipment"







Health and Safety Executive, Chemicals Regulation Directorate (Pesticides)

Department for Environment, Food and Rural Affairs (DEFRA)



  • PS2001 Assessing the validity of current approaches for calculating off-crop exposure to pesticides;

  • PS2011 Aquatic buffer zones in the UK - the potential to extend the existing LERAP scheme for boom sprayers;

  • PS2015 Additional field spray drift data for the buffer zone review;

  • PS2017 Field spray drift studies to mature winter cereal crops with modern application practices to inform policy on setting of buffer zones in the UK;

  • PS2019 Low drift rating of broadcast air-assisted sprayers for UK horticulture: a review to establish LERAP reduced drift status;

  • PS2020 Identifying methods of controlling spray drift when using increased boom heights;

  • PS2022 Additional field spray drift studies with modern application practices to inform policy on setting of buffer zones in the UK.




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