International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (846) Last page : (852)
Article doi: http://dx.doi.org/10.18782/2320-7051.5559

Bio-Efficacy of Different Insecticides against Fruit Borer (Helicoverpa armigera) in Tomato (Lycopersicon esculentum Mill.)

K. Ravi Kumar*, Ch. Sreenivasa Rao, V. Shashi Bushan and K. Narasimha Reddy
AINP on Pesticide Residues, EEI Premises, Rajendranagar, Hyd-30
*Corresponding Author E-mail: ravy.varam@gmail.com
Received: 15.07.2017  |  Revised: 23.07.2017   |  Accepted: 24.07.2017  

 ABSTRACT

Field experiment carried out during kharif, 2012 at Student’s Farm, College of Agriculture, Rajendranagar, Hyderabad to evaluate the efficacy of insecticides viz., emamectin benzoate 5 SG @11 g a.i. ha-1, emamectin benzoate 5 SG @ 22 g a.i. ha-1, profenophos 50 EC @ 500 g a.i. ha-1, profenophos 50 EC @1000 g a.i. ha-1, spinosad 45 SC @ 100 g a.i. ha-1, bifenthrin 10 EC @ 100 g a.i. ha-1 and Bacillus thuringiensis @  25 g a.i. ha-1against tomato fruit borer (Helicoverpa armigera). Among all the insecticides, profenophos (1000 g a.i. ha-1) was found to be the most effective one with a maximum reduction in fruit borer  population (65.20%), minimum per cent of fruit damage (28.80%) and maximum yield (26.43 kg/20 m2) followed by bifenthrin @ 100 g a.i.ha-1 with reduced larval  population of  64.51% and damaged fruits 32.60%.

Key words: Insecticides, Bio-efficacy, Fruit borer.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Kumar, K.R., Rao, C.S., Bushan, V.S. and Reddy, K.N., Bio-Efficacy of Different Insecticides against Fruit Borer (Helicoverpa armigera) in Tomato (Lycopersicon esculentum Mill.), Int. J. Pure App. Biosci.5(4): 846-852 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5559