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)

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

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

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