Selected mucilaginous seeds were evaluated in the laboratory to determine their potential for controlling mosquito larvae. Larvae of Aedes aegypti were used as the test organisms. Seeds were placed in test tubes containing larvae and observed for larval attachment to the exuded mucilage. Seventy-three species in 22 genera and 10 families were evaluated with 8 species, Lepidium medium, L. densiflorum, L. thurberi, L. austrinum, Lesquerella argyrea, L. mirandiana, L. fendleri and Alyssum minutum, producing larval ranging from 76 to 89%.