Post, SLRoten, RL2020-10-05201820182151-0032GR8VJ (isidoc)https://hdl.handle.net/10182/12930The chargeability of liquid sprays is an important factor in determining the deposition efficiency of electrostatic pesticide sprays. The Rayleigh limit provides information on the maximum amount of charge a spray droplet can carry as a function of droplet size and liquid properties. This article reviews the literature to determine what fraction of the Rayleigh limit is achievable. Typically, less than 10% of the Rayleigh limit charge is obtained. The droplet charge per unit mass decreases with increasing droplet size and liquid flow rate. A correlation equation is derived from published data to predict spray droplet charge per unit mass from droplet size, flow rate, and charging voltage.pp.1243-1248en© 2018 American Society of Agricultural and Biological Engineers.droplet sizeelectrostatic chargingspray driftsprayersultra-low volume sprayingJournal Article10.13031/trans.12516ANZSRC::079902 Fertilisers and Agrochemicals (incl. Application)2151-0040ANZSRC::30 Agricultural, veterinary and food sciencesANZSRC::40 Engineeringhttps://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives