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Effect of Bavistin Against Ufra Disease of Rice

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

Dr. Tahmid Hossain Ansari
Principle Scientific Officer
Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

Dr. MAT Mia
Chief Scientific Officer
Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

Incidence of damaged tiller was 4.71-9.29% when different doses of Bavistin 85 WP were applied but it was 10.24% in diseased control. Ufra-1, Ufra-2 and Ufra-3 incidence ranged from 2.08-25.88%, 10.24-53.15% and 2.69-8.10% respectively in Bavistin treated plots, where the diseased control plots infected with 25.93%, 53.65 and 9.04% respectively. The results indicated that Bavistin 85 WP applied at 1.5 Kg/ha effectively reduced ufra incidence which was close to the standard check. Furadan 5G treated plots produced 87.0% healthy panicles with the yield 4.93 t/ha. In Bavistin treated plots healthy panicles varied from 3.97-79.22% with the yield ranged from 1.04-4.83 t/ha. The yield in Bavistin 5G at 1.5kg/ha was 4.83 t/ha which was similar to the yield found in the standard chek Furadan 5G. Therefore, the application rate of Bavistin 85 WP might be 1.5 Kg/ha which could be effective against ufra disease.

Keywords: Bavistin, 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 find out the appropriate dose of Bavistin against 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. Four doses of Bavistin 85 WP eg., 0.5, 0.75, 1.0 and 1.5 Kg/ha were tested against ufra disease. Previously inoculated BR3 seedlings were transplanted at 2 seedlings per hill in 2m× 2m plots with 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. Bavistin was applied twice, first at 20 days after transplanting (DAT) and the second at 15 days after first spray. A standard check with Furadan 5G (20 kg/ha) and 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:

The results indicated that Bavistin 85 WP applied at 1.5 Kg/ha effectively reduced ufra incidence which was close to the standard check. Furadan 5G treated plots produced 87.0% healthy panicles with the yield 4.93 t/ha. In Bavistin treated plots healthy panicles varied from 3.97-79.22% with the yield ranged from 1.04-4.83 t/ha. The yield in Bavistin 5G at 1.5 kg/ha was 4.83 t/ha which was similar to the yield found in the standard chek Furadan 5G. Therefore, the application rate of Bavistin 85 WP might be 1.5 Kg/ha which could be effective against ufra disease.

Knowledge Management: Report/Proceedings