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Indian Journal of Entomology
Year : 2018, Volume : 80, Issue : 2
First page : ( 203) Last page : ( 206)
Print ISSN : 0367-8288. Online ISSN : 0974-8172.
Article DOI : 10.5958/0974-8172.2018.00070.6

Effect of silica on yellow stem borer in rice

Tripathy Seema*, Rath L. K.

Department of Entomology, College of Agriculture Orissa University of Agriculture and Technology, Bhubaneswar-751003

*Email: seematripathy2@gmail.com

Online published on 27 July, 2018.

Abstract

The study on influence of Si applied in forms of fertilizer formulations against yellow stem borer, Scirpophaga incertulas Walker infesting rice through field experiment was carried out at Central Research Farm, Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar during kharif, 2014. It was observed that foliar application of orthosilicic acid @4 ml/l applied at 20, 35, 50 and 65 days after transplanting (DAT) was the best treatment in reducing deadheart and white ear head incidence and increased the grain yield. Higher uptake of silica established a negative correlation with stem borer incidence, whereas, the same produced a significant and positive correlation with grain yield.

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Keywords

Yellow stem borer, dead heart, white ear head, grain yield, orthosilicic acid, fertiliser formulation, foliar spray.

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