Evaluation of different modules for the management of tomato fruit borer, Helicoverpa armigera pest of tomato

Abstract

Among, six modules tested against Helicoverpa armigera on tomato, the IPM module I consisting interspersing of 1 row of african marigold after every 8 rows of tomato as well as on the periphery of the plot and spray of neem based formulation gromin 1 % EC @ 0.5 ml /l on appearance of the first instar larvae.IPM module II was interspersing of 1 row of african marigold after every 8 rows of tomato as well as on the periphery of the plot spray of neem based formulation gromin 1 % EC @ 0.5 ml /l on appearance of the first instar larvae and two spray of HaNPV @ 350 LE/ha alternated with neem oil @ 0.5 % + 0.1 % soap solution.IPM module III consisting interspersing of 1 row of african marigold after every 8 rows of tomato as well as on the periphery of the plot and two spray of Beauvaria basiana @ 40g/10 l at appearance of first instar larvae alternated with Nikuchhi @ 1.0 %. and IPM module IV are growing of african marigold after every 8 rows of tomato as well as on the periphery of the plot and two spray of HaNPV @ 350 LE/ha on appearance of first instar larvae followed by spray of Decidan 32.8% EC @ 15ml/10 litre. The IPM module V was alternate spray of Polytrin c 44 % EC @ 10ml/10 litre on appearance of first instar larvae and subsequent spray at 15 days intervals and Module VI was Control. IPM-IV module was found highly effective and economical for management of tomato fruit borer, Helicoverpa armigera and it exhibited least tomato fruit borer damage (3.44%) and maximum tomato yield (257.25q/ha). This research gave the best result to farmers for the control of H. armigera in tomato crops.

Status of insecticide resistance in field populations of tomato fruit borer (Helicoverpa armigera) (Lepidoptera: Noctuidae) in Punjab, India

“…64, 13.94, 34.20 and 111.8-fold resistance to fenvalerate, deltamethrin, cypermethrin and alphamethrin, respectively. Many other workers reported the high level of resistance to fenvalerate acquired by this pest from India as well as from other parts of the world (Gunning and Easton 1994, Armes et al 1992, Kranthi 1997, 2001, Chaturvedi 2013. Kranthi et al (2001) also observed in field populations of H. armigera high level of resistance to deltamethrin (24.21 to 69 fold) from Amravathi and Akola region of Maharashtra.…”

“…These pests cause damage to the aerial parts of the tomato plant from the very early growth till to the fruit maturation stage (Tripathy and Singh 1999) and results in yield loss ranged from 12.9 to 54.82% (Kaur et al 2011). The loss incurred to growing tomato crop is insurmountable and may extend up to 63.20% in Punjab (Kaur 2001). Apart from tomato, the pest is reported to infest cotton, maize, chickpea, pigeon pea, sorghum, sunflower, soybean, and groundnut and hence has attained the national importance as key pest (Yaqoob and Arora 2005).…”