Sorry, the document appears to be unavailable. Please contact the AER administrator. Different approaches to the quantitative evaluation of natural enemies. Published online01 Jan 1973Content typeJournal articleJournal titleJournal of Applied Ecology Author(s)Kiritani, K. & Dempster, J. P. Publication languageEnglish Key wordsagricultural entomologybiological controlcontrolnatural enemiespest control