Tent caterpillar egg masses are gray and varnished looking and form a collar around twigs. Bagworms look somewhat like a pine cone hanging at the end of branches. Remove honeysuckle and other weedy vines from deciduous plants while the plants are still leafless. It's easier then to distinguish between the weeds and desired plants. Water shrubs in your landscape throughout the winter if the soil is dry.
Later winter is the time to prune many deciduous trees.
Look over your plants now and remove dead, dying, unsightly parts of the tree, sprouts growing at or near the base of the tree trunk, crossed branches, and V-shaped crotches. Winter is the time to apply miscible oil sprays to kill overwintering mites, aphids, and scale on deciduous trees and shrubs. Spray miscible oils when temperatures are above 40 F, but not within 24 hours of a freeze. Because the oil kills insects by suffocation, avoid spraying on windy days to ensure that all surfaces of the plant are covered. Remember, trees and shrubs have an economic value.