Control of Sugarcane Shoot Borer Chilo infuscatellus Snellen with Granulosis Virus and Cultural Practices
A field experiment was conducted during 1991-92 crop season atÂ Sathiamangalam, Periyar district, Tamil Nadu, on the control of sugarcaneÂ shoot borer, Chilo infuscateiius using granulosis virus (GV) and culturalÂ methods of control. The shoot borer infestation was significantly less in plots treated with GV and plots treated with GV+ cultural practices, than in control. Application of GV at 107 inclusion bodies/ml on 35 and 50 daysÂ after planting significantly reduced the shoot borer infestation compared toÂ other treatments. All the treatments gave increased cane yieldover control.Â The GV treatment alone resulted in a cost benefit ratio of 1:2.54 whereasÂ it was 1:2047 for trash muiching, 1:2.46 for GV application and 1:2.43 forÂ GV+ earthing up.
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