Persian Gulf Crop Protection, 2(1): 52-56 52 Persian Gulf Crop Protection Volume 2 Issue 1, March 2013 Pages 52-56 Efficacy of Different Insecticides and Neem Leaf Aqueous Extract in Controlling Sugarcane Termite, Odontotermes Lokanandi Chatterjee & Thakur Saleh Mohammad Adnan 1 , Mohammad Mahir Uddin 1* , Khandakar Shariful Islam 1 1-Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh. (*Corresponding author e-mail: mahirbau@yahoo.com). Abstract: A field Experiment was carried out to evaluate the efficacy of three insecticides and Neem leaf aqueous extract against the Sugarcane termite Odontotermes lokanandi Chatterjee and Thakur. Sugarcane variety Isd 32 was planted at the experimental farm of Setabgonj Sugar Mills Ltd., Bochagonj, Dinajpur following Randomized Complete Block Design (RCBD) having five treatments namely Dursban 20EC @ 750ml/hectare (T 1 ), Admire 200SL @ 1.2Litre/hectare (T 2 ), Spike 25WG @ 400g/hectare (T 3 ), Neem leaf aqueous extract @ 1:10 in water (T 4 ) and control (T 5 ) with 4 replications. Bud damage (%), germination (%), Shoot damage (%), mean termites count per sett, no. of tiller/ha were analyzed to describe the effect of treatments. The application of the insecticides and Neem leaf aqueous extract showed that control having the highest bud damage (83.33%) and Dursban 20EC having the lowest bud damage (38.54%) were statistically different from Admire 200SL(46.88%), Spike 25WG (47.29%) and Neem leaf aqueous extract (67.29%). Regarding bud germination (%), the highest germination was in Dursban (61.45%) and the lowest was in control (16.67%) statistically different from Admire 200SL (53.13%), Spike 25WG (52.71%) and Neem leaf aqueous extract (32.71%). In case of Shoot damage (%), and mean termites count per sett, control having the highest value (30.51 % &37.25) and Dursban 20EC having the lowest (7.76% &9.75) respectively were statistically different from Admire 200SL(13.09% &15.50), Spike 25WG (14.97% &14.25) and Neem leaf aqueous extract (19.19% & 26.50). In addition, no. of tillers was the highest (67.25×10 3 ) in Dursban 20EC and the lowest tillering (14.00×10 3 ) in control. The effect of Admire 200SL and Spike 25WG did not differ significantly in case of bud damage (%), germination (%), shoot damage (%) and tillering /ha. But neem leaf aqueous extract was statistically different from all other treatments in all cases. Key Words: Efficacy, Sugarcane termite, Odontotermes lokanandi, Insecticides, Neem leaf aqueous extract.