It might be worth getting a licensed arborist in to check the trees.
Apr 15, A fresh cut to a pine tree in cold weather weakens the tree and slows down the healing process. That is why you should prune a pine tree during the spring when the temperatures begin to warm up. The warmer temperatures help the tree heal quicker and by winter, the tree should have enough protection to withstand the winter elements. If a branch breaks and you need to cut the branch off you can do that any time of the year.
Just keep in mind that major pruning should Estimated Reading Time: 3 mins.
Its done naturally in the woods from limbs dying and falling off. Naturally in pastures from cattle eating folliage back. Winter should be a good time to prune.
Amount trimmed off should not exceed 25% of total foliage, % is a better target, but not always attainable. Nov 28, The Best Time of Year to Trim Pine Trees. As coniferous evergreens, pine trees (Pinus spp.) require very little pruning. Many pine trees thrive in Mediterranean climates, such as the stone pine. Jun 01, Unlike other evergreens, pines have a specific time of the year when they should be pruned to improve their shape and make them more compact.
In the northeas.