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Identification and Distribution of Sugarcane Stem Borer in Bangladesh

Md. Ataur Rahman
Bangladesh Sugarcane Research Institute, Ishurdi, Pabna, Bangladesh

Md. Shibly Noman
Crops Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka 1215, Bangladesh

Md. Abdul Maleque
Crops Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka 1215, Bangladesh

Md. Zinnatul Alam
Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University,Gazipur 1706, Bangladesh

Sultana Afroz
Department of Agriculture Extension, Ministry of Agriculture, Dhaka 1000, Bangladesh

M.K.A. Chowdhury
Crops Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka 1215, Bangladesh

Abstract/ Executive Summary:

Field surveys were conducted during the cropping season of 2010-2011 to assess the distribution of Sugarcane stem borer species in 12 AEZs of Bangladesh. These surveys documented abundance and their distribution and results clearly showed the existence of the stem borer at all locations surveyed, but with a higher incidence in the Atwary (36%) and initiation of infestation was observed on 20 May. Stem borer incidence and distribution varied significantly among the different locations. Second highest rate of infestation (32%) was recorded in Bashudebpur followed by Dinajpur (31%), Pabna and Akandabaria farm (30%). The lower infestation was recorded in Kaliganj. The percentage of stems attacked at the Kaliganj has never exceeded 23% followed by Rajshahi (28%), Thakurgaon and Faridpur (29%). The rate of infestation of stem borer (Chilo tumidicostalis) in different locations varied from 23-36%. While morphological characteristics of stem borer species were identified with standard keys and species composition was only predominated by Chilo tumidicostalis Hampson, though previous workers found other borers in addition to this species. The sex ratio of adult moth Chilo tumidicostalis was 1:1.42 after emergence from the reared collected pupae from different locations.

Keywords: Alternate host, Caterpillar growth stage, Moths, Pupae, Lepidopteran pest, Sugarcane.

Location: RSRS, Thakurgaon and BSRI, Ishurdi, Pabna, Bangladesh.

Start Date: 00-00-2011

End Date: 00-00-2011

Program Area: Pest Management

Commodity: Insects

Objectives:

To identify and to assess the distribution of sugarcane stem borers in Bangladesh.

Methodology:

Nine Sugar Mills zones of Bangladesh namely Atwary, Panchagar Sugar Mills (PSM); Patuadangi farm, Thakurgaon Sugar Mills (TSM); Sultanpur farm, Setabganj Sugar Mills (STSM); Puthia, Rajshahi Sugar Mills (RJSM); Bashudebpur, Natore Sugar Mills (NTSM); BSRI farm, Pabna Sugar Mills (PBSM); Akandabaria farm, Carew & Co. Sugar Mills; Modhukhali, Faridpur Sugar Mills (FSM) and Kaliganj, Mobarakganj Sugar Mills (MKSM) were selected for this study. A comprehensive survey was conducted through questionnaire by extensive visit throughout the selected locations during the cropping season of 2010-2011 and stem borer infested sugarcane fields were observed in the morning and afternoon. Adult emergence of Chilo tumidicostalis from pupae was recorded by rearing the collected specimen of 9 locations during the period from August to October 2011 and periods of stem borer infestation were recorded for nine locations of Bangladesh during the period from May to June 2011. A total of 100 infested sugarcanes were checked for recording the incidence of target pest in each field of cane grower. Hundred plants were examined randomly at each sugarcane field to obtain the percent infestation of stem borer. At each location, three sugarcane fields were randomly selected from which specimens were collected at random from 3 different cane growers. The percent of stem borer infested sugarcane per location was calculated based on the number of total plants observed and the number of infested plants. Accordingly fifty (50) plant specimens from each location were cut and tied into bundle. The bundle of cane containing borers was brought to Entomology Laboratory of Regional Sugarcane Research Station (RSRS), Thakurgaon as well as Entomology Laboratory of Bangladesh Sugarcane Research Institute (BSRI), Ishurdi, Pabna for morphometric study. Rearing boxes were kept ready before the specimen were carried to the laboratory. The experiment was laid out in Completely Randomized Design (CRD) with three replications. The treatment means were compared using Duncan’s Multiple Range Test i.e. DMRT (Gomez and Gomez, 1984).

Source of Information: SAARC JOURNAL OF AGRICULTURE, Vol. 11, Issue 2, 2013, pp. 103-116, ISSN 1682-8348, SAARC Agricultural Information Centre.

Article Link (Online Journal): http://www.banglajol.info/index.php/SJA/article/view/18406/12917

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present study indicated that Chilo tumidicostalis Hampson is the only insect pest that bored into sugarcane, though previous workers found other borers in addition to Chilo tumidicostalis. Other borers which attack sugarcane are the rice, maize borer and they choose sugarcane as alternate host. However, it is now essential to undertake more research work to find out other borers which may have been attacking sugarcane as alternate host. Another study could be conducted to identify some of the borers invading Graminae/Poaceae crops of Bangladesh.

Knowledge Management: Journal