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A study of factors regulating populations of Pieris rapae Linnaeus in Canterbury, New Zealand
(Lincoln College, University of Canterbury, 1971)
The small white butterfly, Pieris rapae Linnaeus, was accidentally introduced to New Zealand in 1930. In the absence of its specific natural, enemies, P. rapae multiplied rapidly and-by 1936 posed a serious economic problem ...
A rearing method and some biological studies of the weevil Sitona humeralis Stephens (Coleoptera: Curculionidae) in Canterbury
(Lincoln College, University of Canterbury, 1978)
A rearing method was developed to facilitate the study of the soil inhabiting stages of Sitona weevils, with particular reference to s. humeralis in Canterbury. Consideration is given to the physical requirements of both ...