The field study on population estimation and foraging activity of Coptotermes gestroi (Isoptera: Rhinotermitidae) in Mengkuang, Seberang Prai and Globitermes sulphureus (Isoptera: Termitidae) in Sungai Pinang, Balik Pulau were monitored using pine wood consumption. The treatment of Premise® 200SC (18% w/w imidacloprid) was carried out to see the efficiency of this product in a Malaysian climate. Two sites of different species of termite infestation (C. gestroi and G. sulphureus) were choosen for the efficiency study. The estimate population of C. gestroi was 7.22 x 105 with the feeding territory was 40m2. The population of G. sulphureus which was estimated 3.38 x 105 with the feeding territory of 96m2. Both sites were treated with Premise 200SC at the dilution rate of 25ml Premise 200SC into 10L water. From the study, Premise® 200SC was proven to cause termite activity to cease within 6 weeks after treatment and no sign of active termite was detected either indoor or outdoor after this report was written.