Q: I have a lilac that is covered with some kind of white fungus ... spot should help both with flowering and disease-fighting. If a nearby tree is growing and creating more shade each year ...

on a bark beetle species affecting trees from Mexico to Canada.The fungus releases white powdery spores, Hofstetter said. When bark beetles crawl over them the fungus gets into their bodies and ...

Within the past two years it has started to show a greenish-blue scaly covering around its bark ... the eponymous lilac, white or various reddish- or bluish-purple tints. Tree lilac (S.

Bark beetles may use receptors in their antennae to detect and feast on fungus-infected trees. The Eurasian spruce bark beetle (Ips typographus) – found in Europe, Asia and some parts of Africa ...

The list of diseases attacking trees in the Pacific Northwest grows every year. A pathogen new to Pierce County brings an added concern: It can injure people. A research project using citizen ...