Hi Tui, how can I treat leaf curl safely on my fruit trees without harming bees?
Use a copper based spray that is non toxic to bees as a preventative over winter, before bud burst in spring and then two weeks after bud burst. Leaf curl is prevalent in cool wet weather. Once temperatures warm up it will disappear, but it does overwinter in buds so a winter spray programme is important.
Collect up fallen, infected leaves and burn or put in the rubbish to stop it spreading, some stone fruit varieties are more susceptible to leaf curl than others, plant resistant varieties.
Thanks, Tui Team.