Answer: You can shear off the dead growth anytime between spring and midsummer. This should spur new growth to replace what was lost. You have a lot of trees, but it may be worth your while and some money to treat them with an antitranspirant spray next fall before winter sets in. Also, if fall rains are scarce, water the trees well before the ground freezes. That way they'll be better able to resist windburn. Best of luck to you!
Q&A Library Searching Tips