Spray deposition on plant surfaces: a modelling approach

• DOI: 10.1071/fp08056
• Publication Date: 2008-11-11T02:35:40Z
• Authors: Gary Dorr; Jim Hanan; Steve Adkins; Andrew Hewitt; Chris O'Donnell; Barry Noller
• Keywords: Deposition; Avena

For pesticides to effectively manage pests, they must first be deposited on the target (typically a plant surface) in manner which active ingredient(s) can readily taken up by organism. A architectural model that enables location of various components 3-D space combined with particle trajectory has been used study interception spray droplets vegetative elements. Results from simulation are compared wind tunnel studies glyphosate deposition cotton (Gossypium hirsutum L. var. Sicala), sow thistle (Sonchus oleraceus L.) and wild oats (Avena ludoviciana Durieu). An air induction flat fan nozzle (AI110015 at 500 kPa pressure) an extended range (XR11002 280 were predicted have similar plants, whereas resulted higher deposit oats. Spray (µg cm−2) oat plants 5-leaf stage was more than double amount or 2-leaf stage. The good agreement experimental data except it tended over predict plants.