资讯

The AFC release also said brown spot needle blight can stunt tree growth and increase the risk of pests like bark beetles. “Just in the last few days, the agency started receiving calls ...
MONTGOMERY, Ala. (WBMA) — The Alabama Forestry Commission (AFC) is alerting forest landowners to a new threat to loblolly pine trees: brown spot needle blight. This fungal disease, which causes ...
The lone pine tree stands sentinel over Los Angeles from its 1,690-foot perch on Burbank Peak, right at the western edge of the city’s largest green space. The mythology around the tree grew ...
A decade later, there’s good news and bad news, according to the annual aerial survey of state trees from Colorado State University’s forestry departmen t. The notorious spring rains and floods of ...
the mountain pine beetle, according to CSU. And a relatively wet 2023 for much of the state bolstered many trees against the spread of that beetle, the separate spruce beetle and the spruce budworm.
The 2013 floods gave state trees the water they needed to fight off the mountain pine beetle and other forest pests, but a dry 2024 restarted some pesky threats “The Bug That’s Eating the ...
After that first encounter, Professor Safford began looking more closely. Over the course of his hike, he identified 14 Jeffrey pine trees thriving above 11,800 feet. Some were over 20 years old. The ...
then a lodgepole pine—trees he expected to see at such high elevations. "Then I thought, 'What's that?'" said Safford, a forest ecologist in the UC Davis Department of Environmental Science and ...
Sandwiched between a lodgepole pine on the left and a foxtail pine on the right is the first Jeffrey pine tree UC Davis Professor Hugh Safford observed in Sept. 2024 on a hike along Mount Kaweah in ...
A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.