Crystal Lake Recreation Area, a camping destination in the San Gabriel Mountains, will be closed April 9-14 while trees are sprayed with an insecticide to protect them from the western pine beetle, forest officials announced Sunday.
Crews plan to spray ponderosa, Jeffrey/ponderosa hybrids and Coulter pine with bifenthrin, officials said. Officials said trees will be sprayed from the base up to 45 feet high.
Pine beetle infestation has increased significantly with climate change. The insects thrive in warm conditions, resulting in greater tree damage. An infestation can kill up to 200 trees at a time.
