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Biocontrol for Orthezia insignis. (Key, R., Fowler, L., Pryce, D., Wilkins, V., Key, R. (2021). Terrestrial & Freshwater Invertebrates of St Helena. Pisces Publications, Newbury); The ladybird (Hyperaspis pantherina) was introduced from Kenya as a biological control agent and brought the infestation under control. It is reported in 1995 to have improved the health of the Peak Dale Gumwoods. (Environmental Conservation Section of the Agriculture and Forestry Department (1995-1998) Bulletin.);
Key, R., Fowler, L., Pryce, D., Wilkins, V., Key, R. (2021). Terrestrial & Freshwater Invertebrates of St Helena. Pisces Publications, Newbury; Environmental Conservation Section of the Agriculture and Forestry Department (1995-1998) Bulletin.;