The black vine weevil and rose chafer are two insect species that can feed on your shrubs and trees.
The black vine weevil can affect hemlock, rhododendron, azalea, hydrangea and mountain laurel plants. Adult weevils measure 3/8 inches in length and cannot fly. Adult weevils notch leaf margins and cut off the tips of needles. However, the damage done from adult feeding is rarely life-threatening to the plant.
Adult weevils lay their eggs in the soil for the larvae to hatch and feed on young roots and the bark of larger roots. While adult feeding may rarely be fatal, larval feeding on the plant’s root system can cause root loss and girdling. This root damage can lead to die-off of foliage and can result in death of the plant.
The rose chafer finds its host in rose, peony, grape, hydrangea, and many other plants. This beetle is slender with long spiny legs and measures about ½ inch in length. Adult beetles are known to cause damage to shrubs and trees by skeletonizing the leaves. They also damage flowers by feeding upon the petals.
Adult rose chafer beetles prefer to lay their eggs in sandy, grassland soil. Larvae hatch to feed on the roots of grasses and weeds.
Management of threatening shrub and tree pests depends on the time of year and degree of infestation. At Eric’s Tree Service, our licensed arborists have the required knowledge to advise our customers on the best protocol specific to their particular circumstances. If you would like to discuss tree maintenance and pest management, call or text Eric to schedule your free consultation.