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Development of a Management Approach Against the Pod Borer Euchrysops Cnejus (f.) Attacking Yard Long Bean

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

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

M.K. Uddin
Scientific Officer
Entomology Division, BARI, Gazipur

K.H. Kabir
Chief Scientific Officer
Entomology Division, BARI, Gazipur

Abstract/ Executive Summary:

An experiment was conducted at BARI Central Farm, Gazipur during Kharif 2008 to evaluate the several management tactics against the pod borer Euchrysops cnejus (F.) attacking Yard long bean. Management package comprising of hand collection and destruction of larvae along with two sprays of Emamectin benzoate appeared to be the best method offering the lowest pest incidence (10.29 %) and the highest MBCR (6.74). Results obtained from the rest of the techniques were not encouraging.

Keywords: Yard long bean, pod borer, Emamectin benzoate,

Location: Gazipur

Start Date: 02-03-2008

End Date: 12-06-2008

Program Area: Pest Management

Commodity: Yard long bean

Objectives:

To provide the farmers with a suitable management package to combat this pest.

Methodology:

The experiment was conducted at BARI Central Farm, Gazipur during Kharif 2008. yard long bean variety ‘Kregornatoki ’ was sown in plot size of 3 x 3 sq-m. The experiment was laid out with 5 treatments replicated 3 times in RCBD. The recommended agronomic practices were followed to raise the crop. The treatments were assigned as follows: T₁ = Hand collection and destruction of larvae T₂ = T₁+ Two sprays of Neem Seed Extract (NSE). (50g of half crushed neem seed was taken in to 1 litre of water and kept for 12 hours. The filtered product was then sprayed as insecticides.) T₃= T₁+ Two sprays of Emamectin benzoate (Proclaim 5 SG). First spray during initiation of pest attack and second spray at 15 days after first spray @) 1g / litre water and T₄ = Blanket sprays of Emamectin benzoate (Proclaim 5 SG) at 7 days interval. @) 1g / litre water .First spray during initiation of pest attack and continued up to the last harvest ofthe crop T₅ = Untreated Control. In each plot five plants were tagged randomly for collecting data. Number and weight of healthy pods were recorded at each harvest. All the data were analyzed systematically and the means were separated using DMRT.

Source of Information: Annual Report 2008-2009, Entomology Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

1.	Budget: 45,000.00

Total Budget (Tk.) : 45,000.00

Achievement/Findings:

Management package comprising of hand collection and destruction of larvae along with two sprays of Emamectin benzoate ( proclaim 5 SG) can successfully control pod borer of yard long bean.

Knowledge Management: Report/Proceedings