UC Master Gardener Program of Alameda County

Invasive species

Invasive insects, plants and animals threaten the health of our gardens and environment. Learn to how to spot invasives and how to report them.

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Adult female black fig fly depositing eggs into the fig ostiole

Black Fig Fly Threatens California Figs

July 14, 2026
By Judy Quan
Black fig fly, now in the Bay Area.  A new invasive pest, the black fig fly, Silba adipata, has been found in Alameda County.  This pest exclusively feeds and reproduces on figs, and California produces almost 100% of the U.S. fig crop. The black fig fly (BFF) causes major fruit drop, a…
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