Management of Brown Spot Disease of Rice | Comparison of chemical, botanical and biological management practices for the control of brown spot disease of rice

Publisher

LAP LAMBERT Academic Publishing

Publication Date

2012

Language

English

ISBN 10

3848443503

ISBN 13

9783848443505

Binding

Taschenbuch

Condition

Neu

Dimensions

Weight

155 grams

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About this title

Synopsis

An experiment was conducted to evaluate the efficacy of different chemical, botanical and biological treatments against the brown spot disease (Bipolaris oryzae)of rice in Chitwan, Nepal. Treatments were evaluated by poisoned food technique in-vitro, seed treatment in laboratory and foliar spray in the field. Saaf and Hinosan were the most effective followed by Cattle urine and Nico-neem in inhibition of mycelial growth. However seed treatment with Hinosan reduced 90% seed borne inoculum followed by Saaf. Botanicals also significantly controlled seed borne inoculum by more than 50%. In field trial, AUDPC was significantly reduced by Hinosan followed by Saaf and Nico-neem. All the yield and yield attributing characters were negatively correlated but highly significant with AUDPC. The reduction in seed borne infection by the residual effect of foliar spray was significant. The results revealed that seed treatment and foliar spray with Hinosan or Saaf may be the option for management of brown spot. Neem oil based products Nico-neem and locally available botanicals like Simali are promising for eco-friendly management of brown spot disease of rice.

About the Author

Mr. Lamsal has completed his Master's degree in Agricultural Sciences with major in Plant Pathology from Institute of Agriculture and Animal Sciences, Tribhuvan University, Nepal in 2007. Since 2006, he has been working as an Agricultural Extension Officer under the Ministry of Agriculture and Cooperatives, Government of Nepal.

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