Insects Control., JSC is a unit specializing in providing services to prevent termites, mosquitoes, insects and environmental hygiene products. Long Quan is one of the leading enterprises in technology application in the field of insect control such as Termites, Mosquitoes, Cockroaches, etc.Insects Control., JSC is a unit specializing in providing services to prevent termites, mosquitoes, insects and environmental hygiene products. Long Quan is one of the leading enterprises in technology application in the field of insect control such as Termites, Mosquitoes, Cockroaches, etc.