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Effect of Plant Extracts, Insecticides and Cultural Practices on Growth Characters and Disease Severity of Mungbean Yellow Mosaic

A. S. M. A. Hossain
MS student
Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

S. M. A. S. Islam
Additional Agricultural Officer
Department of Agricultural Extension (DAE), Sadar, Rangpur

K. Akhter
Assistant Professor
Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka

N. Akhter
Professor
Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka

A. Muqit
Scientific Senior Officer
Bangladesh Agricultural Research Institute, Gazipur-1701

Abstract/ Executive Summary:

A field experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from March to July, 2007 to evaluate the potentiality of some selected plant extracts, insecticides and cultural practices in reducing severity of mungbean yellow mosaic virus. The lowest (15.85%) disease symptoms expressed in true leaves was recorded from Admire treated plot compare to the control at fifty days after sowing. The insecticide, Admire 200 SL treated plot gave the lowest disease severity (3.95) and the tallest (46.52 cm) plant compare to control. The higher number of pods per plant was recorded where Admire was sprayed (23.50) and lower in Reflective tape treated plot. The maximum pod length also increased by Admire treated plot while Reflective tape treated pod length was minimum.

Keywords: Yellow mosaic, Severity, Plant extracts, Insecticides, Cultural practices, Mungbean

Location: Experimental farm of Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-03-2007

End Date: 00-07-2007

Program Area: Pest Management

Commodity: Diseases

Objectives:

To evaluate the potentiality of some selected plant extracts, insecticides and cultural practices in reducing severity of mungbean yellow mosaic virus.

Methodology:

The experiment was carried out in the farm of Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, during the period from March to July, 2007. The seeds of BARI Mung-5 were used. Neem, Allamanda, and Garlic extracts were prepared after crushing the plant parts in a blender with water in 1:4 (w/ v) ratio (eg. 1000 ml of distilled water was added with 250 g plant parts). Some oily substances were kept on yellow plastic container for catching whitefly. Two traps were used per plot (3m²). Traps were set at 20 days after sowing (DAS) and they stayed upto50 DAS. Traps were changed in every week. Reflective tape of cassette was used for avoiding whitefly. The selected experimental plot was harrowed, ploughed and cross-ploughed several times followed by laddering to obtain a good tilth. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications with the following treatments T₁= Admire 200 SL (Imidacloprid) @ 1 ml/1 litre of water for four times at 7 days interval , T₂ =Actara 25 WG (Thiamethoxam) @ 0.4 gm/1 litre of water for four times at 7 days interval, T₃ = Marshal (Carbosulfan) @ 3 ml/1 litre of water for four times at 7 days interval, T₄ = Ripcord (Cypermethrin) @ 1.7 ml/1 litre of water four times at 7 days interval, T₅ = Neem leaf extract (1:4 w/v), T₆ = Garlic clove extract (1:4 w/v) , T₇ = Allamanda leaf extract (1:4 w/v), T₈ = Yellow trap, T₉ = Reflective tape, T₁₀ = Untreated (control). Fertilizers were applied as per recommendation of Bangladesh Agricultural Research Institute. Intercultural operations mainly Irrigation and weeding were properly done in time. Percent mosaic expressing leaves were calculated by using the formula. Disease severity was recorded at 0-9 scale. Percent Disease Index (PDI) was calculated using the fomulae. Disease severity was determined by calculating the PDI. The data were analyzed by using MSTAT-C package Program and the difference among the treatment means was estimated by DMRT at 5% level.

Source of Information: Int. J. Sustain. Crop Prod. 5(2):16-20, 2010

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The insecticide, Admire 200 SL showed significant performance in reducing disease severity, higher plant height, higher number of pods per plant and maximum pod length than any other treatments used in this experiment. Reflective tape was not found to be effective in reducing Yellow Mosaic Virus of Mungbean (MYMV). Plant Extracts used here showed moderate disease suppression of MYMV and nothing remarkable influence on growth characters of mungbean var. BARI-5.

Knowledge Management: Journal