Parasitisation efficiency of Tetrastichus howardi olliff (Hymenoptera: Eulophidae) on Diaphania pulverulentalis hampson (Lepidoptera: Pyralidae) pupae at different depths of soil Harshitha C.1,*, Sannappa B.1, Helen S. Mahiba2, Kumar J. B. Narendra3 1Department of Sericulture Science, University of Mysore, Manasagangotri, Mysuru-570006 2Central Sericultural Research & Training Institute, Mysore-570008 3Research Extension Centre, Central Silk Board, Madivala, Kurugal Post, Kolar, District-563 157 *E-mail: harshitha.shekar14@gmail.com
Online published on 26 June, 2023. Abstract A laboratory experiment was carried out to determine the parasitization efficiency of Tetrastichus howardi (Hymenoptera: Eulophidae) on the pupae of Diaphania pulverulentalis Hampson (Lepidoptera: Pyralidae) at various soil depths. The results showed that the parasitoid successfully parasitized the host pupa at various depths, but the emergence rate was highest (96%) when the pupae were on the top layer of soil, followed by 2cm (90%), 4cm (84%), and 6cm (86%). Top Keywords Tetrastichus howardi, Diaphania pulverulentalis, Parasitoid, Mulberry. Top |