Arizona Conservation Corps members cut tamarisk at Dead Horse Ranch State Park in Cottonwood, Ariz. Tamarisk roots can reach 25 feet deep.

Invasive tamarisk tough to eradicate

PHOENIX – The tiny seedling was brought over from Eastern Europe and parts of Asia nearly 200 years ago and planted along riverbanks across...

Earth Briefs

Mountain Studies to test plant spray

The Mountain Studies Institute of Durango and Silverton has joined with Terra Environmental to study the effects of Terra’s EnviroNow, an organic spray designed to restore the health and vigor of soil and trees as well as vegetation in residential lawns, parks, farms, ranches and forests.

Marty Millar of Terra Environmental presented Marcie Demming-Bidwell, executive director of the institute, with funding for the long-term study of the effects of EnviroNow on trees and vegetation...

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