USDA Forest Service

Pacific Southwest Research Station

Pacific Southwest
Research Station

800 Buchanan Street
Albany, CA 94710-0011
(510) 883-8830
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Research Topics: Biological Control

About this Research:
Biological Control of Strawberry Guava in Hawaii

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Over time strawberry guava displaces native Hawaiian rainforest. These photos show a typical sequence from upper elevations that have not yet been overrun by strawberry guava to lower elevations where the native species have been severely impacted and, in the end, replaced completely. The sequence is along a trail in the Hawaii Experimental Tropical Forest, Laupahoehoe unit (Laupahoehoe Natural Area Reserve) on Hawaii Island. Photos by Christian Giardina, US Forest Service