As spring begins, eggs laid in trees by adult defoliating insects will hatch and the larvae will begin feeding on leaves and tender parts of the plant. In our area, this includes pests like California oakworm, leaf tiers and leaf roller caterpillars.
Defoliation, or loss of leaves, is unsightly and can greatly reduce photosynthesis, thereby reducing the energy a tree has to grow and thrive.
Early signs of an infestation, like egg masses, can already be seen, but are often difficult to spot. However, once damage becomes readily apparent, it is often too late to provide treatments for optimal protection. With this in mind, now is the time to have a certified arborist review your trees for any issues.