Agelastica alni, the alder leaf beetle, is a species of leaf beetle (Chrysomelidae) in the genus Agelastica. [3] Agelastica alni is distributed in Europe, the Caucasus, Siberia, north-eastern Kazakhstan, and in the 19th century was introduced to the United States. Fortunately, alder leaf beetles don't cause any long-term damage to the health of the trees they target, but they can leave them looking worse for wear.
Try these methods for getting rid of these critters to keep your trees looking their best. How to get rid of alder leaf beetles - Homes and Gardens Discover how to spot alder leaf beetles and protect your trees from damage caused by these metallic blue pests. The Banded Alder Borer, BAB for short, is an exotic looking beetle that may be encountered from March to August in the Pacific Northwest. With their striking white-blue and black coloration, BAB adults are frequently mistaken for the Asian Longhorn beetle.
alder beetle, This longhorned beetle, or roundheaded wood borer (Cerambycidae), feeds during its larval stage in declining or dead branches of broadleaf trees, including alder, ash, California bay, oak, and willow. An aggregation of alder flea beetles, Altica [Macrohaltica] ambiens, found inside a home adjacent to an alder tree. Each beetle is between 5 to 6 mm long in size. It feeds mainly on Alder but is occasionally found on other deciduous trees such as Beech, Hazel and Hornbeam. The black larvae can be found in July and August when they can cause significant leaf damage.
