A review of twenty-five years of economic entomology in the Island of Mauritius.
The practical results achieved in the past 25 years' work on the major insect pests of Mauritius are discussed. An historical review is given of the introduction of the cochineal insects of the Prickly Pear, Dactylopius indicus and D. tomentosus, which have completely eradicated Opuntia tuna and O. monacantha. A review of the species of termites found in Mauritius and their control is given; an insecticidal powder containing arsenious oxide has given good results. During the last 25-30 years, 64 species of parasites and predators have been imported for the biological control of 8 species of insects of major economic importance and 2 noxious plants. The results indicate that introduction of parasites and predators into insular countries should be carried out only after a thorough investigation of the various ecological, biotic and climatic factors in the countries of origin and importation. From authors' summary. KEYWORDS: Termite control \ Mauritius economic entomology \ Mauritius