What is hydrogen cyanamide (HiCane) good practice?
- Put up spray signs at least 24 hours before spraying starts.
- Notify neighbours of your intention to spray at least 12 hours before spraying.
- Notify contractors and visitors who may be on your orchard for various other work activities.
- Check wind conditions before spraying. Do not spray if wind conditions are more than a light breeze towards neighbours (wind felt on exposed skin, leaves rustle).
- If there is no shelter, or the shelter is incomplete, use a no-spray buffer of 30 metres to minimise drift onto neighbouring properties, including roads.
- Take special care before spraying in areas where school children may be walking by or waiting for the bus, where dogs are being exercised, or where your rural postie may be driving up the road.
- Set up sprayers correctly, as poor coverage on canes can lead to poor budbreak. Make sure sprayers are accurately calibrated before the spraying season starts.
- AI (air inclusion) nozzles must be used along with adjuvants or spray additives to reduce spray drift. AI nozzles reduce drift and recent research which compared HiCane application with AI nozzles to standard hollow cone nozzles found no significant difference in their biological efficacy including budbreak, flower numbers and fruit.
Growers with any spray-related queries such as spray drift can contact Melanie Walker, Crop Protection Advisor here