Sharma, D.C., Rawat, U.S., & Pawar, A.D. 1990 Effect of temperature and humidity on the development, longevity and predatory potential of Pharoscymnus flexibilis Muls. on San Jose scale.. Journal of Biological Control 4(1): 11-14.

Notes: Abstract: Optimum temperature and humidity observed to be 28 degrees C and 65% respectively; hibernation occurs at 22 degrees C and they could survive for more than 175 days; while at 37 degrees C they died within 5 to 10 days; average consumption of Quadraspidiotus perniciosus given at various temperatures. Keywords: biological control.