The Board shall develop and maintain the capability and technical competence necessary to investigate the occurrence of diseases borne by insects and rodents and shall recommend such measures as may be necessary to prevent the spread of such diseases and to eradicate or control disease-bearing insects and rodents. In this regard the Board shall make provision for assistance to mosquito control commissions when requested, field surveys and investigation of complaints, advice to citizens and local governments, training in vector control, advice and recommendations on proper use of pesticides, and identifying specimens.