While alder trees are a target, alder leaf beetle can also occasionally be found on other trees like beech and hazel. To stop damage to your tree leaves, we recommend a few things to try that ...

The researchers found that colonization with the fungal endophyte boosted the poplars' natural defenses and those induced by insect damage ... such as the poplar leaf beetle Chrysomela tremulae.

Battle the beetle: Idaho Agriculture Department seeks residents' permission for Japanese beetle treatments ...