Efficacy of Moringa oleifera against Odontotermes obesus (Ramb.) (Termitidae: Isoptera)
Muhammad Shahid Nisar, Naeem Iqbal and Sohail Ahmed
The present study was undertaken to test the efficacy of leaf and seed extracts of Moringa oleifera Linn. In various polar and non-polar solvents on the mortality of workers and soldiers of subterranean termites, Odontotermes obesus (Ramb.). The sterilized soil was mixed with extracted materials of Moringa oleifera at 1, 5 and 10% concentrations along with a control which had solvents alone. The results revealed decrease in LT50 (hours) values with the increase in concentrations. Minimum LT50 values (108.87 ± 3.05 to 143.93 ± 3.70 hours) were recorded in N-hexane leaf extracts at all concentrations. While in seed extract at 1% concentration, minimum LT50 value was recorded in chloroform (181.87 ± 9.13). The LT50 values at 5% and 10% concentrations were minimum in ether (165.98 ± 11.3) and n-hexane (151.10 ± 3.50) solvents.