climate-controlled transportation methods / unseen valuable services / biological control producer / good-quality products / chemical treatment / transportation / biological pest control products / control products / physical product / chemical pesticides / poor quality products / biological control products / carrier material / biological control product / transportation system / /
MedicalCondition
disease / /
Position
natural enemy producer / THE COMMERCIAL BIOLOGICAL CONTROL INDUSTRY R.J. Valentin Technical Business Manager / biological control producer / producer / /
_______Economics of marketing and technical support in the commercial biological control industry 151 ECONOMICS OF MARKETING AND TECHNICAL SUPPORT IN THE COMMERCIAL BIOLOGICAL CONTROL INDUSTRY R.J. Valentin Technical Bu