1Department of Agriculture, Government of Andhra Pradesh, India
2Department of Entomology, Agricultural College, Acharya N.G. Ranga Agricultural University, Bapatla-522 101, Andhra Pradesh, India
3Department of Plant Pathology, Agricultural College, Acharya N.G. Ranga Agricultural University, Bapatla-522 101, Andhra Pradesh, India
4Department of Biotechnology, Regional Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Lam, Guntur-522 034, Andhra Pradesh, India
*Corresponding Author: Rajasekhar Lella, Department of Agriculture, Government of Andhra Pradesh, India, Email: rajagrico724@gmail.com
Online Published on 10 February, 2026.
Identification and characterization of T. palmi a potential vector of GBNV in blackgram.
Pictorial taxonomic key-based morphological identification of T. palmi and molecular characterization through DNA sequencing using species specific marker ITS2 for accurate confirmation of the species.
The present paper reports the host record of T. palmi on blackgram and its identification, molecular characterization through DNA barcodes from Andhra Pradesh. This study contributed 07 (seven) novel gene sequences to NCBI database and also revealed the existence of low genetic polymorphism among the ITS2 sequences of T. palmi. Species specific ITS2 primer was found promising. Six more genera of thrips were also identified viz. Megalurothrips usitatus (Bagnall), Scirtothrips dorsalis (Hood), M. typicus (Bagnall), Ayyaria chaetophora (Karny), Phibalothrips peringueyi (Faure) and some Tubuliferan thrips. T. palmi found in all GBNV hotspots of blackgram across Andhra Pradesh.
DNA barcodes, Genetic polymorphism, ITS2, T. palmi
