Unfortunately many insects contain glycols which act as a type of anti-freeze and protects them from excess cold. Thus they will be alive and well when spring arrives. Gardeners can help prevent insect invasions by fertilizing properly, pruning, watering, and using proper spacing in the garden. Scouting for insects 1-2 times a week will enable a gardener to detect the presence of insects early and act to prevent an invasion. Once an invasion is detected, quick action is required.
Several treatments are available, depending on the type of pest.
The pests usually found in the garden include mites, worms and insects. Mites Mites usually appear early in the Spring and are not particular about their host. Symptoms appear as dull green to bronze colored leaves that can appear anywhere on the plant. When the affected leaves are shaken vigorously over a piece of white paper, the mites can be seen on the paper. Dormant oil will help control mites on trees and shrubs while lacewings may be effective in a greenhouse or hothouse.