One spray application may do the trick.
Also be diligent about a follow-up spray application of fungicide after rain.
These aircraft were equipped with pumps, booms, and nozzles for spray application.
The spray application kills off the beneficial insects.
Icynene uses water for its spray application instead of ozone depleting chemicals.
Walls can be finished off by spray application of strong (8%) hypochlorite then left to dry.
As with any spray application, it is essential to follow the label's directions.
Controls often employed against the disease include spray applications of fermate or phygon.
An essential reminder: one spray application is sufficient for the season.
If it has, this spray application can be delayed for a time, until the lighter summer-weight oil can be applied.