Roadways are getting closed in a little in spots, scraping the 4x4 and tractor. Plantation in about 11 yrs. I have a couple of spruce that I'd like to trim up to bonnet level and some alder and ash I'd like to trim up to about 5 feet.
I've done this before to a degree but is there a danger I'd leave the trees more susceptible to disease or damage? Is this the best time of to be doing such tasks or should I wait until the autumn/winter?