My nectarine has peach leaf curl. Is it too late in the season to spray with bordeaux mixture?
The next time to spray it is just before leaf fall. In the meantime, clear up the infected leaves to limit spread next year. In spring, spray in late January and a fortnight later.
Thanks for that. Means I will have a pretty bald tree all summer as it really seems to have taken hold but if that's what I need to do so be it.
I have a peach tree close by which (fingers crossed) is not yet infected so that is what I wanted to prevent.