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Integrated Management of Ufra Disease of Rice.

Ahsanul Haque
Scientific Officer
Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

Dr. Md. Abdul Latif
Principle Scientific Officer
Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

The incidence of damaged tiller ranged from 2.95-9.59% in all the treatments while it was 20.37% in diseased control. Statistically identical incidence of damage tiller was recorded with single sprayed 10% neem seed extract + Furadan 5G at 10kg/ha, single sprayed 10% neem seed kernel extract 10% + Bavistin 85 WP at 1.5 kg/ha and Furadan 5G at 20kg/ha. Ufra-1 incidence was very low (1.91-6.7%) in all the treatments except for the diseased control where the highest incidence (39.52%) was recorded. Ufra-2 incidence was 4.00, 4.88 and 5.42% with single sprayed 10% neem seed kernel extract + Furadan 5G at 10kg/ha, single sprayed 10% neem seed kernel extract + Bavistin85 WP at 1.5 kg/ha and Furadan 5G at 20 kg/ha, respectively which were statistically similar to each other. The highest incidence was recorded in diseased control (20.77%) followed by double sprayed 10% neem seed kernel extract (14.17%). Ufra-3 incidence was 8.14, 7.88 and 8.05% with Bavistin 85 WP at 1.5 kg/ha, double sprayed 10% neem seed kernel extract and one sprayed 10% neem seed kernel extract + Furadan 5G at 10kg/ha, respectively which were statistically similar with the standard check Furadan 5G applied at 20 kg/ha. Application of double sprayed Bavistin 85 WP at 1.5 kg/ha, double sprayed neem seed kernel extract at 10%, single sprayed neem seed kernel extract at 10% + Furadan 5G at 10kg/ha and single sprayed neem seed kernel extract at 10% + Bavistin 85 WP at 1.5 kg/ha performed equally and satisfactorily against the total ufra incidence. Total ufra incidence recorded in these treatments was comparatively lower and statistically similar to that found with the standard check Furadan 5G applied at 20 kg/ha. Healthy panicles varied from 61.65-82.33% with the yield 3.50-4.56 t/ha. Single sprayed neem seed kernel extract at 10% + Furadan 5G at 10kg/ha and Single sprayed neem seed kernel extract at 10% + Bavistin 85WP at 1.5 kg/ha respectively produced 4.28 and 4.20 t/ha yield which were similar to Furadan 5G applied at 20 kg/ha (4.56 t/ha).

Keywords: Integrated management, Ufra disease, Rice.

Location: Plant Pathology Division, BRRI HQ

Start Date: 01-07-2009

End Date: 30-06-2010

Program Area: Pest Management

Commodity: Diseases

Objectives:

To formulate an integrated approach to control ufra disease of rice.

Methodology:

The experiment was conducted in the experimental field of Bangladesh Rice Research Institute (BRRI), Gazipur, during Boro 2009-10 following Randomized Complete Block Design with three replications. Previously inoculated BR3 seedlings were transplanted at 2 seedlings per hill in 2m×2m plots maintaining 20 cm×20 cm spacing. Each plot was bounded with 15-20 cm high mud plastered levee to avoid nematode spread from one plot to another. Neem seed kernel extract, Furadan 5G and Bavistin 85 WP were applied singly and in combination. Two control treatments (healthy and diseased) were also maintained.

Source of Information: Proceedings of BRRI Annual Internal Review for 2009-10

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of double sprayed Bavistin 85 WP at 1.5 kg/ha, double sprayed neem seed kernel extract at 10%, single sprayed neem seed kernel extract at 10% + Furadan 5G at 10kg/ha and single sprayed neem seed kernel extract at 10% + Bavistin 85 WP at 1.5 kg/ha performed equally and satisfactorily against the total ufra incidence. Total ufra incidence recorded in these treatments was comparatively lower and statistically similar to that found with the standard check Furadan 5G applied at 20 kg/ha. Healthy panicles varied from 61.65-82.33% with the yield 3.50-4.56 t/ha. Single sprayed neem seed kernel extract at 10% + Furadan 5G at 10 kg/ha and Single sprayed neem seed kernel extract at 10% + Bavistin 85 WP at 1.5 kg/ha respectively produced 4.28 and 4.20 t/ha yield which were similar to Furadan 5G applied at 20 kg/ha (4.56 t/ha).

Knowledge Management: Report/Proceedings