Agriculture has long been regarded as the backbone of Sri Lanka, contributing to its’ economy for over thousands of years. However, with recent technological advancements many of the indigenous practices with regard to cultivation have been neglected or forgotten. The use of toxic chemicals in agricultural practices has led to a host of deleterious effects on humans as well as the environment. This paper looks into how ancient Sri Lankans utilized a native tree, Madhuca longifolia (Mee), in paddy cultivation for various purposes including the prevention of soil erosion, water conservation, soil enrichment and pest control measures. Although our ancestors lacked the scientific knowledge to justify their practice, the basis for these are now understood in the scientific community. Therefore, a return to these practices may be worthwhile in terms of their beneficial influence on agriculture, environment and human health and wellbeing. Keywords: Agriculture; Pest control; Soil erosion; Conservation of natural resources