International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 1
First page : (521) Last page : (525)
Article doi: http://dx.doi.org/10.18782/2320-7051.2576
Seasonal Incidence of South American Tomato Moth, Tuta absoluta (Meyrick) (Gelechiidae: Lepidoptera) on Tomato Ecosystem
K.S. Nitin1, 2*, V. Sridhar2, K.P. Kumar3 and A.K. Chakravarthy2
1Jain University, Jayanagar, Bengaluru-560011, Karnataka, India
2Division of Entomology and Nematology, ICAR- Indian Institute of Horticultural Research, Bengaluru-89, Karnataka, India
3Department of Agricultural Entomology, University of Agricultural Sciences, GKVK, Benagaluru-560065, Karnataka, India
*Corresponding Author E-mail: catchnitinks@gmail.com
Received: 10.02.2017 | Revised: 18.02.2017 | Accepted: 21.02.2017
ABSTRACT
Tomato leaf miner, Tuta absoluta is one of the serious pest of tomato crop, has the capacity of causing yield loss upto 100%. So studies were initiated using pheromone traps to monitor the seasonal incidence of this pest. Pheromone traps were placed in the tomato fields during summer, kharif and rabi seasons. Examination of the traps was carried out at weekly intervals. The pheromone lure was replaced every 15 days. There was a linear increment in the number of captured moths on tomato crop. The number of moths captured ranged from 03-352 in the field conditions. The larvae of the tomato leaf miner inflicted a heavy damage on young tomato plants. As a result, young plants died before flowering. The pest is likely to cause heavy losses to tomato crop on an unprecedented scale in India. The highest numbers of moths caught in traps were recorded between March and April. Similarly, the highest levels of tomato borer infestation were observed during January to May and, to a lesser extent, during October to November @ 6 moths/trap. In fact, while during March - April T. absoluta frequency reached maximum densities of 30-100 larvae/plant, during October to November infestation did not exceed 25 larvae/plant. Therefore, monitoring the pest in all tomato producing regions of the country is a vital step towards early detection and decision making for integrated management.
Key words: Monitoring, Pheromone trap, Seasonal incidence, Tuta absoluta, Tomato
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Nitin, K.S., Sridhar, V., Kumar, K.P. and Chakravarthy, A.K., Seasonal Incidence of South American Tomato Moth, Tuta absoluta (Meyrick) (Gelechiidae: Lepidoptera) on Tomato Ecosystem, Int. J. Pure App. Biosci.5(1): 521-525 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2576
