Effect of some plant volatile oils on potato tuber moth, Phthorimaea operculella Khongrymmai L.*, Gupta M. K., Longkumer I. Y., Devi B. Department of Entomology, College of Agriculture Central Agricultural University, Imphal, 795004 *Email: klapynbiang@gmail.com
Online published on 5 February, 2019. Abstract Laboratory study was conducted in the Department of Entomology, College of Agriculture, Central Agricultural University, and Imphal to study the effect of three plant volatile oils (citronella oil, lemongrass oil and patchouli oil) against neonate larvae of Phthorimaea operculella. The larval mortality was observed to be higher in all the treatments and it increased with concentration. The highest mortality was obtained when treated with patchouli oil @1% (79.99%) followed by citronella oil (73.33%), and lemongrass oil (69.99%) at the same concentration. The pupation success and adult emergence were significantly reduced in all the treatments; larvae treated with patchouli oil @0.8% and 1% and citronella oil1% failed to pupate. The adult emergence too varied greatly in all the treatments. Top Keywords Phthorimaea operculella, citronella oil, lemon grass oil, patchouli oil, larval mortality, pupation, adult emergence. Top |