Twig Beetle

The Twig Beetle (Pyrrhalta viburni) is a small insect that belongs to the Chrysomelidae family. It is native to Europe but has been introduced to North America and other parts of the world where it can cause significant damage to various species of Viburnum shrubs and trees. The adult beetles are small, around 4-5mm in length, with a cylindrical body and a distinctive, bright red or orange color. They feed on the leaves of Viburnum plants, causing them to turn yellow and eventually brown. This feeding damage can cause a significant reduction in the plant's overall health and can lead to a decline in the plant's vigor. The larvae of the Twig Beetle are legless and have a pale yellow or white color. They feed on the bark and wood of the Viburnum plant, causing damage that can be more serious than the damage caused by the adult beetles. The larvae can cause significant damage to the branches and stems of the plant, which can lead to dieback and eventually death of the plant. To control Twig Beetle populations, cultural practices such as removing infested plant material and providing adequate water and fertilizer can help improve the health of the plant and reduce the susceptibility to attack. Additionally, insecticides can be used to control populations of both adult beetles and larvae. It is important to use the insecticides when the beetles are most active, typically during the summer months. In conclusion, the Twig Beetle can be a serious pest of Viburnum plants and can cause significant damage to the health of the plant. Proper plant care and the use of insecticides can help control populations and prevent further damage to the plant.