Due to the dismal commodity prices constantly squeezing margins, it is vital we get the best possible performance from our fungicides this spring and two key areas to focus on are timing and application.
I’m also a big fan of the theory that angling nozzles and bringing lateral movement to spray droplets can further improve coverage. Angling nozzles does, however, increase the risk of spray drift by increasing the distance the droplets have to travel from the nozzle to the target. It has been suggested alternating the nozzles forward and backward along the boom could reduce this potential problem by providing a break in the spray sheet for air to pass through, however, we found at traditional forward speeds, the backward angled nozzle actually increased drift.
These findings led Agrovista to develop the configuration of angling every other nozzle forward 30 degrees while keeping every other nozzle straight down.
Not only does this reduce the drift potential from angling nozzles, but further increases coverage by bringing in two angles of attack. I am consistently seeing significant improvements in disease control and yield from growers adopting this nozzle configuration.