Sinha, P.K., & Sayeed, M.Z. 1983 Sex-ratio in Ferrisia virgata Ckll (Homoptera: Pseudococcidae).. Biological Bulletin of India 5(2): 140-146.

Notes: Sex-ratio studied on hosts Psidium guajava and Codium variegatum under semi-laboratory and field conditions; average ratio of male to female was 1:6. Keywords: males/biological control.