Klein, H.Z. 1935 On the biology of the red scale (Chrysomphalus aurantii Mask.) in the Jordan Valley.. Hadar 8(3): 71-73; 8(4): 115-116.

Notes: Development of the red scale during the year, preoviposition period, development and longevity of the female, fluctuations of population, mortality and observations in two regions of the Jordan Valley are discussed.