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Assessment of Damage Severity of Shoot Miner, Leaf Roller and Common Cutworm in Groundnut

M. A. Monim
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute,Jamalpur

A. S. M. A. Monim
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute,Jamalpur

M. M. Rahaman
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute,Jamalpur

M. A. Baset
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute,Jamalpur

R. Begum
Department of Agronomy, Ser-e-Bangla Agricultural University, Dhaka

Abstract/ Executive Summary:

The experiment was carried out at the Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Jamalpur, to know the incidence and assessment of damage severity of groundnut crop by shoot miner, leaf roller and cut worm in rabi season of 2008-2009 and 2009-2010. Seeds of groundnut variety BARI chinabadam-8 were sown on December 30, 2008 and 2009 in 10m X 5m size plots in randomized complete block design (RCBD) with three replications. Incidence and infestation of shoot minor; leaf roller and common cutworm were observed in groundnut crop during 3rd week of March at the vegetative and flowering stages and continue their infestation up to 3rd week of May at the pre-maturity stages of the crop. The highest population of these insects was observed (29.1, 30.5, 25.8) in 1st and 2nd week of May 2009, 2010. Infestation of larval population of shoot minor, leaf roller and common cutworm were observed in groundnut crop during 3rd week of March at the vegetative and flowering stages and continue their infestation up to 3rd week of May at the pre-maturity stages of the crop. The highest population density of these insects was 0.42, 0.49 and 0.47 per plant observed in 1st and 2nd week of May 2009, 2010. The damage severity by these pests in groundnut crop was assessed in 27.5 percent, 31.7 percent and 36.25 percent, respectively.

Keywords: Insect pest, Damage, Severit, Ggroundnut

Location: Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Jamalpur

Start Date: 00-11-2008

End Date: 00-04-2009

Program Area: Pest Management

Commodity: Ground nut

Objectives:

1. To know the incidence and assessment of damage severity of groundnut crop by these pests.

Methodology:

The experiment was conducted in the field of the Regional Agricultural Research station, Bangladesh Agricultural Research Institute (BARI), Jamalpur during rabi season of 2008-2009 and 2009-2010. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The unit plot size was 6m X 5m. The spacing maintained for groundnut was 30 cm row to row and 10 cm seed to seed distances. Fertilizers were applied at 25-160- 85-300-5-10 kg/ha of urea, triple supper phosphate, muriate of potash, gypsum, zinc sulphate and borax respectively, as recommended for Bangladesh. One half amount of urea and full dose of all other fertilizers were incorporated into the soil at the time final land preparation. The remaining urea was top dressed in two equal installments at 35 and 65 days after sowing. During land preparation, cowdung was applied at 10 ton/ha. Intercultural operations, such as irrigation was given twice, weeding, mulching and earthing up were done as and when necessary. Seeds of groundnut variety BARI chinabadam-8 were sown on December 30, 2008 and 2009. The incidence of shoot minor, leaf roller and common cutworm in groundnut were carefully observed and recorded. Larval population of unit area and plant infestation were recorded on March 09, 10 at vegetative and flowering stages of the crop. Percent plant damage was recorded by counting plant population in each treatment. Data were recorded on standing crop on visual observation during 9.00-12.00 am from 100 pre-selected plants per plot. Immature larvae were reared in the laboratory for emerging adults of these pests and preserved them in the insect boxes. The crop was harvested on 4th week of May 2009 and 2010. Yield data of different treatments were recorded and analyzed in the computer for Randomized Complete Block Design (RCBD) and analysis of variance (ANOVA) with Duncan’s Multiple Range Test (DMRT).

Source of Information: J. Environ. Sci. & Natural Resources, 3(2): 35-37, 2010; ISSN 1999-7361

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Infestation of larval population of shoot minor, leaf roller and common cutworm were observed in groundnut crop during 3rd week of March at the vegetative and flowering stages and continue their infestation up to 3rd week of May at the pre-maturity stages of the crop.

Knowledge Management: Journal