In 2001, USDA researchers released salvinia weevils in Texas and Louisiana; by 2003, weed cover had fallen near release sites while untreated controls stayed choked

Discover how USDA's release of salvinia weevils has dramatically reduced giant salvinia infestations in Texas and Louisiana without chemical intervention. Learn about the effectiveness and longevity of biological control methods in managing this invasive water weed.

Raccontata daeconomictimes.indiatimes.com