Ants and honeybees share nests of hundreds or thousands of individuals in a very small space. Hence the risk is high that infectious diseases may spread rapidly. In order to reduce this risk, the ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

Adult spruce bark beetles in their galleries in the bark of a Norway spruce tree. The beetle in the middle is infected with the fungus Beauveria bassiana. Spruce bark is rich in phenolic compounds ...

Bark beetles can destroy spruce forests by converting the trees' defences into even more toxic substances, scientists recently discovered. But a special fungus can help the trees circumvent this ...

CLAUSTHAL-ZELLERFELD, Germany (AP) — Nestled in the spruce trees in the Harz mountains of northern Germany is a bark-eating pest not much bigger than a sesame seed. Known as “book printers” for the ...

Bark beetles have hard, smooth, stout bodies and range from 1.3 to 2.9 mm in length, depending on gender and species. The majority of bark beetles are female; males are smaller and flightless. Adult ...

Trees, especially pine trees, are in for challenging times. Although pine trees are relatively drought tolerant, ongoing drought, as we’ve experienced in Marin County for several years, has caused ...

For the first time, a research team has mapped out exactly what happens when spruce bark beetles use their sense of smell to find trees and partners to reproduce with. The hope is that the results ...

Pathogens can drive the evolution of social behavior in insects. Ants and honeybees share nests of hundreds or thousands of individuals in a very small space. Hence the risk is high that infectious ...