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bark beetle

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bark beetle

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Bark beetle (Dendroctonus valens)
(credit: William E. Ferguson)
Any member of the beetle family Scolytidae, many of which severely damage trees. Bark beetles are cylindrical, brown or black, and usually less than 0.25 in. (6 mm) long. A male and females (as many as 60 females with each male) bore into a tree and form a chamber where each female deposits her eggs. The emerging larvae bore away from the chamber, forming a characteristic series of tunnels. Different species attack particular trees, damaging roots, stems, seeds, or fruits. Some species transmit disease (e.g., elm bark beetles carry spores of the fungal Dutch elm disease).
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Federal forests have suffered from wildfires and bark beetle outbreaks that not only clearly prove that the climate is in fact changing, but also that our forests are surprisingly sensitive to that change," he said.
Trees have potential as offsets, panel told by The Register-Guard (Eugene, OR)
The key to better preparedness for future forest health crises such as the current mountain pine beetle epidemic lies in better understanding of the three main players-the trees, the bark beetles and a fungus-and their complex interactions," said Bohlmann, Distinguished University Scholar and professor at UBC's Michael Smith Laboratories.
Cheaper, Faster Way Developed to Fight Pine Beetle by FARS News Agency
In the Oakland and Berkeley hills regions of California's Bay Area, where the combined effects of drought and a bark beetle infestation have killed thousands of acres of trees, public agencies and residents have enlisted the help of goat herds to suppress weeds and keep down the fire risk in the process for what remains of the area's forest cover.
Dear EarthTalk: I heard that goats are being used to prevent some of ... by B., Ali / EarthTalk: Questions & Answers About Our Environment. A Weekly Column
 
 
 
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