Content tagged "pine"

Is ponderosa pine climate change resistant?

Climate, Forests and Woodlands Updated: April 22, 2015

Ponderosa pine has a lot of genetic variability and built-in developmental flexibility and thus, if seed sources can move in time, it can be considered...

Does harvesting pine straw deplete the soil of nutrients over time?

Forest Farming Updated: November 08, 2013

Nutrient losses from a single removal of pine straw are small and not likely to affect stand productivity. Research indicates, however, that frequent raking...

The Benefits of Evergreen Conifers for Energy Conservation

Trees for Energy Conservation Updated: March 22, 2013

More than 100 species of native and introduced evergreen conifers are found in the forests and cities of North America. These conifer species have evergreen...

What is wrong with a mature ponderosa pine with globs of sap on the bark on the main trunk and an overall gray-green color that is starting to turn brown?

Gardens & Landscapes Updated: October 17, 2011

A ponderosa pine with symptoms such as globs of sap on the trunk and a pale green color may be the result of invasion by mountain pine beetles, which...

What is causing the small brick-red leaf spots on my aster plants?

Gardens & Landscapes Updated: October 10, 2011

In late summer and fall, garden asters are often infected with rust disease. Severe leaf rust usually leads to death of aster leaves and reduced plant vigor....

My ponderosa pine tree is dying. How can I save it?

Gardens & Landscapes Updated: June 30, 2010

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.