Journal of Entomological Research

SCOPUSWeb of Science
  • Year: 2019
  • Volume: 43
  • Issue: 1

Evaluation of Beauveria bassiana isolates against South American tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

1Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research, Bengaluru-560 084, Karnataka, India

Department of Entomology, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur-482 004, Madhya Pradesh, India

*Corresponding author's E-mail: padavalaswathi107@gmail.com

Online published on 8 April, 2019.

Abstract

The susceptibility of second instar larvae of Tuta absoluta to seven isolates of Beauveria bassiana were tested under laboratory conditions using the leaf dip method. Significantly highest mortality (80.00%) was recorded in isolate-4 with LC50 value (1.15 × 107 spores ml−1) followed by isolate-1 and isolate-2 with 62.50% mortality each (LC50 value 2.00 × 108 spores ml−1 and 8.01 × 107 spores ml−1, respectively) at 120 hours after treatment, similar trend in mortality was observed at 24, 48, 72 and 96 hours after treatment.

Keywords

Beauveria bassiana, Tuta absoluta, biocontrol, dose-mortality relationship and LC50