Congdon, N.B., & Morrison, L.G. 1959 Mealy bug resurgence in Hawke's Bay orchards.. New Zealand Journal of Agriculture 99: 481-487.

Notes: Pseudococcus adonidum, P. comstocki, P. gahani and P. maritimus are identified as pests of pears, apples, peaches, plums and grapes. Distribution, hosts, damage, descriptions, life histories, overwintering ability, natural enemies, and control methods are discussed.