Add Yahoo as a preferred source to see more of our stories on Google. Bark beetles are dark flying insects about the size of a grain of rice that leave tiny holes in the bark and branches of trees.

Add Yahoo as a preferred source to see more of our stories on Google. Trees produce antibodies against harmful fungi. But bark beetles absorb these antibodies and use them to their own advantage. And ...

Mar. 29—Every year, John Formby spends weeks flying in a plane above New Mexico's forests, looking for trees with signs of insect damage and stress from heat and drought. The state forest health ...

A few years ago, Southeastern Estonia had the highest levels of spruce bark beetle damage, but the pest's spread has now declined, partly due to last summer's cool, rainy weather.

In Finland, forest stands damaged by the European spruce bark beetle (Ips typographus) tend to concentrate in groups and form clusters, especially in mature Norway spruce forests close to previous ...

The city says it will cut down around 250 trees from parks, including 50 in Manito Park, due to significant damage done by bark beetles.