As Florida health authorities work to respond to an ever-growing cadre of invasive tropical mosquitoes, a research team has sharpened an environmentally friendly tool increasingly deployed against a dangerous species that invaded the state two centuries ago. The mosquito is Aedes aegypti, vector of yellow fever, dengue fever, chikungunya, and Zika fever. It is one of the mosquitoes increasingly targeted with the sterile insect technique (SIT), in which male insects reared en masse are sterilized by gamma-ray or x-ray ionization and released to mate with wild females, which then produce non-viable eggs. Link to original article