Incidence of Major Insect Pests to Some Promising Sugarcane Clones in Bangladesh

A field experiment was conducted to evaluate some insect pest resistant promising sugarcane clones viz, I 137-96, I 131-97, I 202-97 and standard varieties like Isd 20, Isd 28 and Isd 29. The tests were done at two locations viz. Ishurdi and Thakurgaon during the cropping seasons of 2001-2002 to 2003-2004. Results revealed that (pooled data) those clones encountered very low infestation by early shoot borer, Chilo infuscatellus Snellen which ranged from 0.00 to 0.53 per cent at Ishurdi and 0.52 to 1.87 per cent at Thakurgaon. Infestation due to black beetle, Alisonotum impressicole ranged from 3.05 to 4.63 per cent and 0.96 to 1.33 per cent at Ishurdi and Thakurgaon respectively. Top shoot borer, Scirpophaga excerptalis Walker infestation ranged…