'Beneficial Wasps' Released Across Southern California To Prey On Pest Spreading Disease To Citrus Trees
'Beneficial Wasps' Released Across Southern California To Prey On Pest Spreading Disease To Citrus Trees

Thousands of tiny, parasitic wasps were released across Southern California this week – but officials say they are beneficial bugs that will reduce a pest spreading a disease that’s killing the region’s citrus trees.

Katie Johnston reports.