Pix by Saman Kariyawasam The branches of the Araliya trees that line the pathways of the BMICH gardens in Colombo are strangely bare. The few remaining leaves are twisted and discoloured with disease.

The mealybugs that have been feasting on our Araliya trees might just have met their nemesis. A neem spray being developed by Sebrin Lanka Ltd combines neem (S. Kohomba) extracts with citronella oil ...