From 1966 up to 1990 the Forest Department has raised a massive plantation of 125,000 hectares with Sonneratia apetala and Avicennia officinalis. However, due to rapid rise in ground level some areas in the coastal belt are now unsuitable for mangrove plantations. The Forest Department, therefore, tried some mcsophytic species in such areas. Seven non­ mangrove namely, Acacia nilotica, Albizia procera, Albizia lebbek, Pongatnia pinnata, Casuarina equisetifolia, Samanea saman and Hibiscus populanaeous were observed to exist in the mangrove areas.

The bark-eating caterpillar, Indarbela quadrinotata Walker (Metarbelidac : Lepidoptera) is an important pest of moluccana koroi (Paraserianthes falcataria) in Bangladesh. Various methods to control the pest were tested in a 4-ycar old moluccana plantation at Satgaon Tea Estate, Moulvibazar. Though all the methods proved effective in controlling the pest over the untreated control, spraying the bark with 0.1% dieldrin or malathion, injection of 5 ml of 0.1% dichlorvos into each larval hole or plugging the larval hole with cotton soaked with kerosene were found superior. The possibility of applying various methods to prevent, control or minimize the pest attack in large scale plantations was discussed.