Forest - You can be a part of one of the biggest, most effective environmental
movements in the United States and around the world. Planting trees in our
Global ReLeaf Projects helps the environment for generations to come.
Tree Foundation - California
communities and non-profit organizations currently engaged in tree planting
activities are highly encouraged to visit the following website of the
Urban Tree Foundation:
Urban Forest Council - California Urban Forest Council is to be a leader in developing and promoting
the proper planning, care, and management, as well as the perpetuation of
substainable urban and community forest that maximize the quality of life
for every Californian.
Forest Guidelines - A Document to specify Street Tree Species, Planting
Locations, and Future Maintenance for the City of Brentwood.
Forest Ecosystems Institute - The trees listed in this resource are meant to create an
awareness of the great variety of trees
that will grow in California, and to encourage people to think about planting
a greater variety of trees. Users should be aware that some trees listed
are not readily available and may actually be difficult to find. Information
may be available by contacting your local nurseries, arboretums, universities,
or city tree group or garden club.
Why Does My Tree Drip Sap?
This year you may have noticed “sticky stuff” raining down from your tree in the late summer months. This nuisance is caused by aphids and makes your tree’s leaves very shiny and sticky. Certain species of trees, such as Chinese Hackberry, Red Oak, Tulip, and Crape Myrtle, are just some of the offenders and are more susceptible to aphids than others. You can hire a tree or landscape professional to inject the tree’s root system with a systemic insecticide or you can buy a ground soak-type application of it from your local hardware store. These applications are best performed in late winter/early spring. Systemic pesticide application is a preferred method over spraying because it doesn’t affect any of your beneficial insects; it only eliminates the aphids that feed on your tree.
For more information: Roger Stromgren (925) 516-5444