Indian Journal of Entomology
Open Access
SCOPUSWeb of Science
  • Year: 2023
  • Volume: 85
  • Issue: 1

Efficacy of some insecticides aganist invasive pin worm Tuta absoluta (Meyrick) and red spider mite Tetranychus urticae (Koch) on tomato

  • Author:
  • C M Karthik*, A P Biradar1, H T Prakash1
  • Total Page Count: 4
  • Published Online: May 17, 2023
  • Page Number: 249 to 252

1Department of Entomology, College of Agriculture, Vijayapur, University of Agricultural Sciences, Dharwad, 580005, Karnataka, India

Department of Entomology, College of Agriculture, KSNUAHS, Shivamogga, 577204, Karnataka, India

*Email: karthikcmag62@gmail.com (corresponding author)

Online Published on 17 May, 2023.

Abstract

The pin worm Tuta absoluta (Meyrick) and red spider mite Tetranychus urticae (Koch) are major pests of tomato. A field experiment was carried out to evaluate the effectiveness of some insecticides against these at the College of Agriculture, Vijayapura, UAS, Dharwad. The results revealed that chlorantraniliprole 18.5%SC led to least number of larvae (1.60/plant), live mines (1.26 live mines/plant) and less fruit damage (2.06%) at fifth day of spray. Spiromesifen 22.9%SC led to significantly less number of mites (1.01/ square inch of leaf area) at third day of spray. The combination treatment of chlorantraniliprole 18.5%SC @ 0.15 ml/l followed by spiromesifen 22.9%SC @ 0.5 ml/l was found to be the best to manage both the pests.

Keywords

Tomato, Tuta absoluta, Tetranychus urticae, Chlorantraniliprole, Spiromesifen, Insecticides, Live mines, Fruit damage, Combination