suckers

Hello, I need some advice on killing suckers from a now dead and removed Paper Mulberry tree. The old tree came down in a winter storm last year and was huge - the diameter of the trunk was 12'. According to my landlord it was decades old. It always threw hundreds of fast growing suckers, and...

My arborist recommended that we get our Oak trees trimmed. We have some new growth on the trunks that he says is dangerous to the tree and will prevent water and nutrients from reaching the canopy. Is that something that needs to be done. Can I prune those off myself? Do I only have to worry...