Annals of Plant Protection Sciences
  • Year: 2010
  • Volume: 18
  • Issue: 2

Field efficacy of HaNPY against Helicoverpa armigera on Tomato

  • Author:
  • Mehraj Ud Din Mir, S.S. Gaurav1, C.S. Prasad2, Ashish Tyagi
  • Total Page Count: 3
  • Page Number: 301 to 303

1Department of Agril. Botany, CCS. University, Meerut, 250004

2Biocontrol Laboratory, S.V. Patel Univ. of Agri. & Tech., Modipuram, Meerut, 250110, India. mehraj74@gmail.com

Department of Plant Protection, CCS. University, Meerut, 250004

Abstract

Field efficacy of HaHPV was carried out against Helicoverpa armigera in tomato field. Different dosaes of HaNPV (100, 150, 200 & 250 LE/ha) and endosulfan (0.07 & 0.035%) were applied as spray. The spraying was done three times at an interval of 15 days starting from pest occurrence. The results clearly revealed that endosulfan 0.07% and HaNPV 250 LE proved most effective treatments in terms of fruit yield. After 4 days of third spray, HaNPV 250 LE/ha. caused maximum mortality (98%) followed by endosulfan 0.07% and HaNPV 200 LE having 96 and 95% mortality, respectively. However, 7 days of spray, three dosages of HaNPW (i.e. 150, 200 & 250 LE/ha) and endosulfan 0.07% gave 98, 99, 99 and 98% mortality, respectively being on par with each other.

Keywords

Helicoverpa armigera, Ha NPV, Solanum lycopersicum