1Krishi Vigyan Kendra, Assam Agricultural University, Karimganj-788 712, Assam, India
2Central Integrated Pest Management Centre, State Bio Control Lab, Agartala-799 003, Tripura, India
All India Network Project on Soil Arthropod Pests, Department of Entomology, Assam Agricultural University, Jorhat-785 013, Assam, India
*Corresponding author's E-mail: sudhansubhagawati@gmail.com
Online published on 17 August, 2020.
Field studies were conducted to know the relationship between different tillage practices and the existence as well as depth of beetle holes of Lepidiota mansueta in some selected endemic villages. The results revealed that the maximum number of beetle holes (13.91–15.94/sq.m.) were recorded in the areas where no tillage operations were carried out and kept as uncultivated land followed by conventional tillage by bullocks (8.64–9.67/sq.m.) and tillage operation done by power tillers (4.59–5.69/sq.m.). Minimum number of holes (3.16–3.67/sq.m.) was found in areas where tillage operation was performed by the tractors. There was no significant differences observed (P = 0.05) in terms of depth of beetle holes in soil irrespective of the tillage operations conducted.
Beetle holes, Lepidiota mansueta, majuli, tillage, white grub
