RESISTANCE IN SOME PROMISING VARIETIES OF SUGARCANE TO DIFFERENT BORERS

Eight early promising cultivars of sugarcane viz. MS.91.CP.1157, MS.91.CP.1154, MS.91.CP. 582, CP.87/1628, CP.87/1248, CP.85/1491, CP.80/1827 and Mardan-93 were tested against shoot borer (Chilo infuscatellus), gurdaspur borer (Bissetia steniellus) and root borer (Emmalocera depressella) at Sugar Crops Research Institute Mardan during 2001 and 2002. Randomized Complete Block design was followed. Experimental results showed that, significantly lowest infestation of shoot and root borers were recorded in plant crop varieties MS.91-CP. 1154, while gurdaspur borer was lowest in variety MS.91-CP. 582. In ratoon crop infestation of shoot borer was recorded as lowest in verities MS.91-CP. 1157 and MS.91-CP. 1154. Gurdaspur borer was lowest in variety CP. 87. 1248 while root borer was recorded minimum in variety MS. 91. CP. 582. Significantly highest infestation of all borers was recorded in variety Mardan-93 in both plant and ratoon crops