FIELD EVALUATION OF SOME SUGARCANE VARIETIES AGAINST MAJOR INSECT PEST

M A Rahman, M S Noman, M A Maleque, S Hossain and Z J Chowdhury
Journal of the Sylhet Agricultural University, Volume 1, Issue 2, 2014, Pages 199-205

Abstract:

An attempt was made to evaluate ten released sugarcane varieties viz., Isd 31, Isd 32, Isd 33, Isd 34, Isd 35, Isd 36, Isd 37, Isd 38, Isd 39 and Isd 40 against their tolerances to major insect pests. The study was conducted at the experimental farm of Bangladesh Sugarcane Research Institute, Ishwardi, Pabna during the cropping season of 2009-2010. The tolerant characteristic was measured by observing their infestation level against four major insect pests such as rootstock borer, stem borer, top shoot borer and white grubs. The lowest infestation of stem borer (21.46% on stock basis; 17.63% on internode basis) was recorded in Isd 36, rootstock borer (17.48%) in Isd 39 and top shoot borer (7.68%) in Isd 37, suggesting their higher tolerance against these major insect pests. The variety Isd 34 had the highest infestation of stem borer (54.66%), followed by rootstock borer (39.58%), top shoot borer (35.62%) and white grub (6.00%). These indicated higher susceptibility of the variety Isd 34 to insect pest attack. The lowest infestation of stem borer was found in the sugarcane variety Isd 36 which indicated its higher resistance to insect pests especially the most devastating stem borer insect pest of sugarcane.

Keywords:

Stem borer, top shoot borer, rootstock borer, white grub, tolerant


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M A Rahman, M S Noman, M A Maleque, S Hossain and Z J Chowdhury. 2014. FIELD EVALUATION OF SOME SUGARCANE VARIETIES AGAINST MAJOR INSECT PEST, Journal of the Sylhet Agricultural University 1(2): 199-205.