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Development of a Management Approach Against Pod Borer, Eucrysops Cnejus Attacking Yard Long Bean

N. K. Dutta
Senior Scientific Officer
Entomology Division, BARI, Gazipur

M. Mahmudunnabi
Scientific Officer
Entomology Division, BARI, Gazipur

S. N. Alam
Principal Scientific officer
Entomology Division, BARI, Gazipur

Abstract/ Executive Summary:

Studies for developing a management approach against pod borer attacking yard long bean were conducted during kharif 2011 at BARI, Gazipur. The IPM package comprising of sanitation + weekly release of bio-control agents, Trichogramma evanescens and Bracon hebetor + spraying of bio-pesticide, Spinosad 45 SC appeared to be the best management option offering lowest pod infestation by borer (8.71%). Consequently, the highest yield (15.37 ton /ha) and Benefit cost ratio(5.19) was obtained from this package.

Keywords: Yard long bean, Pod borer, Management

Location: Gazipur

Start Date: 00-00-2011

End Date:

Program Area: Pest Management

Commodity: Yard long bean

Objectives:

To develop an IPM strategy against pod borer infesting Yard long bean.

Methodology:

The experiment was conducted in the research field of BARI, Gazipur during 2011.Yard long bean seed of Toki (Lalteer-Hybrid) variety were transplanted in a plot of 4m x 5.5m. The experiment was laid out in RCBD having three dispersed replications and 3 treatments including control. Standard agronomic practices were followed to raise the crop. The treatments were assigned as follows: T₁= IPM package : Sanitattion i.e. hand picking of infested pod and flowers + Weekly release of bio-control agent Trichogramma evanescens @ 1gm/ha and Bracon hebetor @ 1 jar (800-1200adults)/ha + 2 sprays of Spinosad 45 SC @ 0.4 ml/litre of water at fortnightly interval starting from the initiation of the pest attack); T₂= Non IPM: Farmers practice- spraying of Voliam flexi 300 SC @ 0.5 ml/litre of water; altogether 8 sprays were done starting from the initiation of the pest attack at weekly interval; T₃= Untreated control. At each harvest number and weight of healthy and infested pods were recorded and percent fruit infestation and yield (t/ha) was calculated.

Source of Information: Annual Report 2011-2012, Entomology Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

1.	Budget: 50,000.00

Total Budget (Tk.) : 50,000.00

Achievement/Findings:

IPM package comprising sanitation + weekly release of bio-control agents Trichogramma evanescens and Bracon hebetor + spraying Spinosad 45 SC can effectively manage pod borers of yard long bean.

Knowledge Management: Report/Proceedings