Thakur, J.N., Rawat, U.S., & Pawar, A.D. 1989 Investigations on the occurrence of natural enemies of San Jose scale, Quadraspidiotus perniciosus Comstock (Hemiptera: Coccidae) in Jummu & Kashmir and Himachal Pradesh.. Entomon 14(1/2): 143-146.

Notes: Abstract: Parasitoids & predators from several locations in India are reviewed; A. perspeciosus & T. perversus reported for first time; 4 spp. of exotic predatory beetles which had been previously released in field for biological control were absent, therefore, had not become established. Keywords: biological control.