Red weaver ants, in this article feeding over a snail, are already used to control pests in China, Southeast Asia, and Africa For most centuries. Chemical pesticides have been first utilized about 2500 BC, once the Sumerians employed sulphur compounds as insecticides.[nine] Modern day pest control was stimulated with the https://www.4shared.com/u/fvUrp998/OPCpestservice.html