AUTHOR(S)
K. Karthikeyan M. M. Christy and M. K. Sreeshma

ABSTRACT

 Experimentswere conducted during the three cropping periods involving twenty farmers inKongad, a major rice growing area in Palakkad district of Kerala, India during2008-2011 using a rice variety Ponmani under two System of Rice Intensificationmethod of cultivation (SRI) and normal system of rice cultivation. Theincidence of yellow stem borer, Scirpophaga incertulas Walker wassignificantly lower in vegetative phase (Dead heart) and reproductive phase(white ear) by 57.85 % and 53.73 % under SRI system in comparison to normalcultivation method. The incidence of other foliage pests like whorl maggot (Hydrelliaphilippina Ferino) and blue beetle (Leptispa pygmaea Baly) were alsolower in SRI system (31.76 and 3.45 % compared to normal system). The incidenceof leaf folder (Cnaphlocrocis medinalis Guenee) another foliage pest inrice was high in SRI system (38.29 % higher over the conventional land system).The grain yield and straw yield was higher in SRI system with 18.52 and 13.35 %respectively over the conventional system. The Cost benefit ratio between theSRI and normal system was 1:2.89 and 1:2.12.

DOI
https://doi.org/10.57182/jbiopestic.7.0.122-127

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