Vines and Trees Flashcards
Multi-head air blast sprayers
Can spray multiple rows
Ducted air blast sprayer
Each tube has nozzle and air
Tangential sprayer
Centrifugal force creates droplets
Air shear sprayer
Low volume, high velocity
fine droplet
Controlled droplet applicator
Droplet formed by rotary atomisor
Uniform droplet size
Recycle sprayers
Excess is captured and recycled
Increase spray volume how?
More fine nozzles, not bigger
drive slower
Increase pressure
Concentration factor
Dilution volume per Ha / concentration volume per Ha
used to determine how much to use when concentrate spraying
Best operating practices
Air needed for penetration
Converging air is best
Adjust fan and speed to give best result
Spray - fine to med
Dilute spraying
Spaying to point of run off
Vine sprayers
Multihead air blast sprayer Ducted Air blast sprayer Tangential Sprayer Air Shear sprayer Controlled droplet applicator Recycle sprayer
Steps in setting up mist blower
Complete a rick assessment Check if operating Direct to canopy Adjust air quality Select coreect droplet size Adjust spray volume
Aspects of aerial spraying
Loading and filling Swath width and design Wind direction (fly across wind) Turn spray on and off Vortices and drift from prop and wing tips
Delta T
Diff between wet and dry temps
COncentrate spraying
Less water but same chem as dilute spaying
