Magana: Giant salvinia (Salvinia molesta) wani ciyawa ne da aka gabatar da shi a wurare masu zafi. Yana girma da sauri kuma yana samar da mats mats a kan ruwa mai tsabta. Yana da asali a Kudancin Amirka. An yi amfani da wani karamin tsutsa, Cyrtobagous salviniae, don samun nasarar sarrafa giant salvinia. Tambaya: A ina ne ake samun babban salvina?
yanayin zafi