I'm an arborist in maine and have a customer that wants a mature black locust pruned. Mostly I'll be taking off deadwood, but there will be some live material that I will have to thin. It's been a long time since I've pruned a black locust, and that was when I lived in Idaho. I've no idea what time of the year it was. I've two seperate sorces: an out-dated book called "How to Prune Anything" that says prune summer/winter; a sorce on the internet that says best time to prune is september/october. It's the beginning of march and has been very cold this winter. The temperature is just starting to warm up. Does anyone know it I can prune it now? My bat sense says no.
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