Western Tussock Moth Caterpillars Invade Menlo Park Neighborhoods
In Menlo Park, California, an unusual surge of Western Tussock Moth caterpillars has been observed, particularly around the M-A campus and nearby neighborhoods. These caterpillars, which primarily feed on willow and oak leaves, are thriving due to the warmer spring temperatures. While they are not harmful to humans, they can cause skin irritation in some individuals. The caterpillars have been seen in large numbers, with reports of them falling from trees and landing on people and property. This phenomenon is part of a natural boom and bust cycle, where caterpillar populations increase significantly under favorable conditions before declining due to disease.