Resources

Arbor Week Poster Contest

California ReLeaf announced the release of a statewide Arbor Week poster contest for students in 3rd-5th grades. Students are asked to create original artwork based on the theme “Trees Are Worth It”. Submissions are due to California ReLeaf by February 1, 2011. In...

UC Irvine Earns Tree Campus USA Designation

UC Irvine was built centered on Aldrich Park instead of the traditional college quad. Today, the university boasts more than 24,000 trees on campus - a quarter of them inside Aldrich Park alone. These trees have helped UC Irvine join other California universities UC...

What’s an Urban Tree Worth?

In September, the Pacific Northwest Research Station released its report "Calculating the Green in Green: What's an Urban Tree Worth?".  Research was completed in Sacramento, CA and Portland, OR. Geoffrey Donovan, research forester with the PNW Research Station,...

Palm Tree Killing Bug Found in Laguna Beach

A pest, which the California Department of Food & Agriculture (CDFA) considers to be "the world’s worst pest of palm trees," has been found in the Laguna Beach area, state officials announced on October 18. They said this is the first-ever detection of the red...

Tree Leaves Fight Pollution

The tree planting organizations in the ReLeaf Network keep reminding the public that we need to reduce pollution and greenhouse gases. But plants are already doing their part. Research published online earlier this month in Science shows that deciduous tree leaves,...

English Spanish