Vertellus Specialties has expanded DEET (diethyl toluamide) production capacity at its Greensboro, NC site. Initiated in January, the completed expansion boosts DEET production capacity by 80%.   DEET is widely recognized and frequently recommended for its efficacy as an active ingredient in consumer mosquito and tick repellents. While DEET has been marketed for many years, recent outbreaks of the Zika virus prompted Vertellus to increase its production resources. The capacity expansion ac...