Sulaiman, S.F.M. 2000a Effect of pesticidal pre-treatments of pineapple plants on the incidence of mealybug wilt disease.. Acta Horticulturae No. 529: 273-288.

Notes: [Proceedings of the Third International Pineapple Symposium, Pattaya, Thailand, 17-20 November 1998, Subhadrabandhu, S. & Chairidchai, P., (Eds.)] The effect of insecticide pretreatments on pineapple cv. Mauritius on the incidence of mealybugs (Dysmicoccus brevipes) and attendant ant colonies in pineapple fields located at an intermediate low country (Hunuwila) and at a wet low country (Walpita) in Sri Lanka was investigated. The soil in Hunuwila was red-yellow podzolic of a sandy alluvial nature, while that in Walpita was lateritic. Data were collected weekly for 2 years. Mealybug incidence and population build-up were observed only in Walpita. The dominant ant species attending on mealybugs was Technomyrmex albipes. Mean mealybug numbers per week per treatment were high in T1 and T2 (256 and 228), and low in T3 and T4 (52 and 22, respectively).