Operational for more than 30 years, Valent BioSciences provides environmentally friendly products for the agriculture, public health and forestry markets throughout the world. It offers biological insecticides and plant regulators, including DiPel, XenTari, Biobit, Novodor, VectoBac, Accel, ProGibb, ProVide, Berelex, Activol, Regulex and Cylex. In addition, the company operates an online learning center to provide information on products. Valent BioSciences has mosquito and black fly control products. It is located in Libertyville, Ill.