Clark, A.F. 1937 Biological control of forest insect pests.. New Zealand Journal of Science and Technology 18: 585-588.

Notes: [Part II of Biological Control of Noxious Insects and Weeds in New Zealand. Symposium of the Fifth Science Congress of the Royal Society of New Zealand, Dunedin, 1935.] Asterolecanium variolosum and Eriococcus coriaceus are among the pests discussed.