Evergreens with at least some shelter from winter winds will usually suffer less winter desiccation damage. A thick layer of bark nuggets, or some other mulch, will conserve moisture and insulate the ...

Q: You seem to be a “fan” of recommending spraying dormant oil as a pesticide. Is this product good to spray on most trees and shrubs that typically grow around here? — M.C., Albuquerque A: I don’t ...

Dormant oil sprays are applied to plants during mid to late winter to control specific insects, usually scales. Now is the time to inspect plants and prepare to apply dormant oils if scale insects are ...