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Field Evaluation of Some Sugarcane Varieties Against Major Insect Pest

M A Rahman
Bangladesh Sugarcane Research Institute, Ishwardi, Pabna-6620, Bangladesh

M S Noman
Hill Agricultural Research Station, Bangladesh Agricultural Research Institute, Khagrachari-4400, Bangladesh

M A Maleque*
Department of Entomology, Faculty of Agriculture, Sylhet Agricultural University, Sylhet-3100, Bangladesh

S Hossain
Hill Agricultural Research Station, Bangladesh Agricultural Research Institute, Khagrachari-4400, Bangladesh

Z J Chowdhury
Department of Entomology, Faculty of Agriculture, Sylhet Agricultural University, Sylhet-3100, Bangladesh

Abstract/ Executive Summary:

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 infestation. 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

Location: Bangladesh Sugarcane Research Institute (BSRI), Ishwardi, Pabna

Start Date: 00-00-2009

End Date: 00-00-2010

Program Area: Pest Management

Commodity: Sugarcane, Insects

Objectives:

The study was undertaken to explore the insect pest resistant suitable variety/varieties through field screening of ten sugarcane varieties against major insect pests.

Methodology:

The study was conducted at the experimental farm of Bangladesh Sugarcane Research Institute (BSRI), Ishwardi, Pabna during the cropping season of 2009-2010. The study site was located between 24.8⁰ North latitude and 89.4⁰ East longitudes with an elevation of 15.5 m above sea level. The site represents high Ganges flood plain soils under the AEZ 11. The climate of the experimental site is subtropical characterized by heavy rainfall from May to October and scanty in other months. Ten sugarcane varieties viz., Isd 31, Isd 32, Isd 33, Isd 34, Isd 35, Isd 36, Isd 37, Isd 38, Isd 39 and Isd 40 were collected from Plant Breeding Division, BSRI, Ishwardi, Pabna and considered treatment variables. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The unit plot was 5 m × 5 m. Plot to plot distance was 1m and block to block distance was 2m. Every unit plot had 5 rows and 35 setts were placed in each row. The total number of setts placed per plot was 175. As conventional planting method, setts containing at least two buds were cut from the upper two-third portion of cane stalk to get healthy setts. The setts were soaked thirty minutes with Bavistin solution (1:1000) for controlling soil borne fungal diseases (Talukder et al. 2005). The setts were allowed to pre-germinate and then planted in the main field. Planting was done through conventional method of placing setts in the trenches. Cowdung and other chemical fertilizers were applied as per recommendation made in FRG (2005). Intercultural operations such as irrigation, weeding, mulching, thinning, earthing-up and tying were done throughout the cropping season for achieving proper growth and development of the sugarcane plants. All the newly released sugarcane varieties were subjected to natural infestation. No insecticide was applied in the experimental plots during the study. Besides, other pest control measures were not adopted.

Source of Information: J. Sylhet Agril. Univ. 1(2):199-205, 2014 ISSN: 2308-1597

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

On the basis of both stalk and internode, the variety Isd 36 had minimal stem borer infestation. The variety Isd 36 could be recommended for less borer infestation as commercial cultivation in mill zone areas. The variety Isd 34 was found susceptible to infestation of major insect pests such as stem borer, top shoot borer, rootstock borer and white grub.

Knowledge Management: Journal