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Validation Trial for Integrated Management of Bacterial Wilt and Root-knot Nematode of Brinjal

T. K. Dey
Director
PRC, Ishurdi

Dr. M.I. Faruk
Senior Scientific Officer
Plant Pathology Division BARI, Gazipur

M. Islam
Senior Scientific Officer
Plant Pathology Division BARI, Gazipur

Abstract/ Executive Summary:

The field experiments were conducted in the research field of Plant Pathology Division, Bangladesh Agricultural Research Institute, Gazipur, Regional Agricultural Research Station (RARS), Jessore, Hathazari, Chittagong and Jamalpur, OFRD farm at Rangpur and Agricultural Research Station, Burirhat, Rangpur as well as farmers field at Burirhat, Rangpur during 2012-2013 cropping season. The developed technology, poultry refuse+ stable bleaching powder+ Furadan 5G was evaluated against root knot nematode and bacterial wilt diseases of brinjal. The technology was found to be effective in reducing root knot nematode and bacterial wilt disease and increasing yield of brinjal in all the locations.

Keywords: INTEGRATED MANAGEMENT, BACTERIAL WILT, ROOT-KNOT NEMATODE, BRINJAL

Location: Jessore, Hathazari, Chittagong, Jamalpur, Rangpur

Start Date:

End Date:

Program Area: Pest Management

Commodity: Brinjal

Objectives:

To test the developed technology of integrated management of bacterial wilt and root knot nematode of brinjal at different location in the country.

Methodology:

The validation trials were conducted at research field of Plant Pathology Division, BARI, Gazipur and RARS and ARS research farm as well as farmers fields at Rangpur, Jamalpur and Hathazari, Chittagong during 2012-13. The developed technology, poultry refuse @ 5 t ha^-1 + stable bleaching powder @ 20 kg ha^-1 + Furadan 5G 25 kg ha^-1 for integrated management of root knot nematode and bacterial wilt of brinjal was applied in all the location. At Gazipur, Jamalpur and Hathazari control plot without application of any organic amendments or chemicals was also considered for comparison. The unit plot size was around 1 bigha and spacing was 60 cm x 60 cm. The brinjal variety BARI begun-4, 8 and 10 were used in different locations. Poultry refuse was applied @5t/ha before 21 days of seedling transplanting. After application, poultry refuse was mixed properly with soil and frequently added water for completely decomposed in the soil. Stable bleaching powder @ 20 kg ha-1 was applied at the time of final land preparation and Furadan 5G was used at the time of seedling transplanting. Seedlings brinjal was transplanted at the age of 35-40 days. Intercultural operations were done as per standard recommendation. During the growing period bacterial wilt incidence was recorded from seedling to maturity stage of the crop. Data on root knot nematode severity and yield of brinjal were recorded. Root knot disease severity was recorded as a gall index following 0-10 scale (Zeck, 1971) after final harvesting of tomato.

Source of Information: Annual Report ,, Plant Pathology Division 2012-13

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

At BARI, Gazipur higher bacterial wilt and root knot nematode diseases incidence (bacterial wilt 7.50% and gall index value 2.75) were observed in the control plot and lower bacterial wilt and root knot nematode diseases incidence (bacterial wilt 0.88% and gall index value 1.50) were observed in the treated plot. The root knot disease recorded as gall index value 3.50 in the control and it was 1.50 in the treated plot. At Jessore, higher incidence of plant mortality 24% was in the control plot and lower incidence 4.50% was in the treated plot. However at Jessore comparatively higher incidence of plant mortality 22.06% was recorded in the trial field where root knot disease incidence was also higher the gall index value were 3.00. Application of integrated disease management technology gave the higher yield of brinjal range from 43.10 to 44.50 t/ha at BARI, Gazipur, RARS Jamalpur and Hathazari where the yield was lower range from 32.20 to 33.70 t/ha in the control plots. At Gazipur, 25.62% higher yield was observed in the treated plot compared to control plot. While at Hathazari and Jamalpur the yield was 25.98% and 21.81%, respectively higher in the treated plot compared to control plot. In Rangpur region, bacterial wilt disease was not observed at ARS, Burirhat farm as well as farmers field at Gangachara, Rangpur where in the field of OFRD, Alamnagar, Rangpur only 5% bacterial wilt incidence was recorded. On the other hand root knot disease severity was lower in the ARS farm Burirhat where gall index value was 1.8 but in the farmers field of Burirhat, root knot disease severity was higher (gall index value 3.25) and in the OFRD, Alamnagar, Rangpur it was 2.25. The yield was higher in the OFRD, Alamnagar, Rangpur farm at 45.60 t ha^-1.

Knowledge Management: Report/Proceedings