author(s)
TP Thummar, ML Patel, VC Gadhiya and KS Jotangiya

abstract
A field experiment was conducted at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during the Rabi season, 2019-20. The results revealed that seven bio-rational treatments evaluated against A. craccivora on fenugreek, azadirachtin 10000 ppm, azadirachtin 1500 ppm and neem seed kernel extract 5% were found most effective in suppressing aphid population. The highest seed yield was recorded in the treatment of azadirachtin 10000 ppm followed by azadirachtin 1500 ppm and neem seed kernel extract 5%. These three bio-rational treatments found significantly more effective which reflected on yield of fenugreek. The maximum ICBR (Incremental cost benefit ratio) was registered in azadirachtin 10000 ppm followed by custard apple leaf extract 10%, azadirachtin 1500 ppm.