Dissolvable Billboard Turns Standing Water Into Larvae Danger Zone

Safe for people and animals, except mosquitoes

Habitat for Humanity Brazil launched an outdoor campaign that turned posters into dissolvable, mosquito larvae killing machines. Just add water, or rain, which Brazil has plenty of. The country also has significant outbreaks of the mosquito-transmitted Chikungunya virus, Zika virus and Dengue fever.

Created by BETC Sao Paulo, the posters are placed throughout highly-populated areas and appear to be simple PSA posters at first glance. Messaging offers ways to prevent the contraction of mosquito-born viruses. The posters are printed on soluble rice paper sheets that contain a larvicide affixed with organic glue. Local artists added personalized flare to posters, which were distributed throughout heavily-affected regions.


When it rains, the posters dissolve and release the larvicide, turning standing water from a breeding ground to a death trap. The larvicide is safe for people, animals and Mother Nature.

Staggering fact: one poster can treat 200ml of standing water and remain effective for 60 days. Making a difference with one disappearing billboard at a time.


Amy Corr is a contributor to Adweek.