* Prabhu S T Balikai R A"> * Prabhu S T Balikai R A"> Incidence of Rice Blue Beetle (Leptispa pygmaea Baly) and their Natural Enemies Under Rainfed Ecosystem of Uttara Kannada District

Incidence of Rice Blue Beetle (Leptispa pygmaea Baly) and their Natural Enemies Under Rainfed Ecosystem of Uttara Kannada District

Japur Krishna*, Prabhu S T, Balikai R A

Research Articles | Published:

E-ISSN: 2229-4473.
Website: www.vegetosindia.org
Pub Email: contact@vegetosindia.org
DOI: 10.5958/2229-4473.2014.00090.1
First Page: 202
Last Page: 205
Views: 2948

Keywords: Rice blue beetle, survey, <I>Leptispa pygmaea</I>, <I>Oryza sativa</I>.


Abstract

Among the five taluks of different agro ecosystem surveyed viz., Sirsi, Siddapura, Kumta, Honnavara and Mundgod, the highest blue beetle incidence was noticed in Mundgod taluk and the least in Honnavara taluk. During kharif season the incidence of L. pygmaea ranged from 1.05 to 1.08, 0.56 to 0.66, 0.57 to 0.62, 0.41 to 0.44 and 1.15 to 1.26 blue beetle population per hill with per cent leaf damage of 3.92 to 7.59, 4.66 to 6.19, 3.38 to 5.27, 4.67 to 4.99 and 5.38 to 6.66 in Sirsi, Siddapura, Kumta, Honnavara and Mundgod, respectively. The mean population of natural enemies viz., spider, coleoptera, odonata and unidentified predator was 0.43, 0.20, 0.28 and 0.07 adults/hill in Uttara Kannada district.



References


Author Information

Department of Agricultural Entomology, University of Agricultural Sciences, Dharwad-580 005, Karnataka, India

*Corresponding author E-mail: krishna3944@gmail.com

Online published on 19 January, 2015.