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Evaluation of Some Ipm Packages for Combating Brinjal Shoot and Fruit Borer

A Akter
Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M M Rahman
Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

The study was carried out at the experimental farm of the Sher-e-Bangla Agricul tural University, Dhaka. during April lo July, 2005. Six IPM packages comprising mechanical and cultural control with combinations of three promising insecticides e.g.; Sumialpha SEC, Suntap 50W I' and Furdan SG were tested on a local brinjal variety ·'Khat khatia". Treatment 6 consisting of mechanical and cultural control 1 Sunlap SOWP @ I g/I & Sum ialpha SEC @ I m l/I of water at 5% infestation level or brinjal gave the best performance resulting significantly lowest shoot (6%) & fruit (25%) infestation ensured the highest yield (20.96 ton/ha). Treatment 3 comprising single application of furadan SG @ 1.5 kg ai/ha t- Sum ialpha SEC @ I m l/I of water at 7 days intervals also gave statistically similar results.

Keywords: Evaluation, Insecticides, Brinjal shoot and Fruit borer

Location: Department of Entomology, Sher-e-Bangla Agricultural University

Start Date: 00-04-2005

End Date: 00-07-2005

Program Area: Pest Management

Non-commodity: Performance

Objectives:

Tto develop a suitable combination of tactics for the management of the pest.

Methodology:

The experiment was undertaken to evaluate some mechanical, cultural; selective insecticides and their combinations for suppressing brinjal shoot and fruit borer (BSFB) Leucinodes orbonalis Guenee during kharif season (April to July, 2005) at Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh . This study was cond cted in the field with a Randomized Complete Block Design (RCBD) hav ing 3 replications. The soil of the experimental field was well prepared by ploughing, harrowin g & followed by cross ploughing and leveling. The whole field was divided into 3 blocks of equal size and each block was sub-divided into 7 plots (2m x I .5m). Nine brinjal seedlings were planted in each plot at a distance of 75 cm between lines and SO cm between plant s. Cowdung and other chemical fertilizers were applied as recommended.The experiment was comprised with seven treatments.They were as follows: T 1= Mechanical control (com prising removal and destruction of infested shoots and fru its) + Cultural control (clean cultivation to keep the plot free from weeds, dry leaves and debris to discourage pupation); T2 = Mechanical and Cultural control + Sumi-alpha 5EC@ I m l/I of water at 7days interval; T3 = Furadan 50 @ 1.5 kg a.i./ha single application at vegetative stage + Sum i-alpha 5EC @ I m I/I of water al 7 days interval; T4 = Suntap 50 WP @ 2g/I of water at 7 days interval; T5 = Mechanical & Cu ltural control + Suntap 50WP @ 2 g/I of water at 7 days interval; T6 = Mechanical & Cu ltural control + Suntap 50 WP @ I g/I & Su mi-al pha 5EC @ I m l/I of water at 5% infestation level of brinjal and Tr Untreated control.

Source of Information: Ann. Bangladesh Agric. (2009) 13 ( 1 & 1) : 95-104

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study revealed that the increased yield per hectare of eggplant with decreased rate of fruit or shoot infestation might be ensured if T6 com prising application of Mechanical and cultural control + Sunlap 50W P @ I g/I & Sumi-alpha SEC @ I m l/I of water is utilized. On the other hand T3 consisting of Furadan 5U @ I .S kg a.i ./ha single application + Su mi-alpha SEC @ I m l/I of' water might be chosen as the next line of defense. These two treatments (T6 & TJ ) ensured judicious use of selective chemicals supplemented with non-chemical approaches for combating this obnoxious pest. However, T2 & Ts also have significant effect in suppressing this pest and it might be tested with other chemical and non-chemicaI components (i .c., pheromones, botanicaIs, etc.) to manage this pest. However, further on-stat ion and /or on-farm trials may be undertaken in order to confirm the validity of these results.

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