Abstract
An experiment was carried out during rabi 2011 and summer 2012 in Large Plot Completely Randomized Design with four treatments viz., pheromone traps @ 30, 40, 50 /ha and control withten replications to standardize the requirement of pheromone traps for mass trapping of Helicoverpa armigera (Hubner) Hardwick infesting tomato [Solanum lycopersicum Linnaeus] crop. The results revealed that the highest moth catches were recorded (9630 moths /ha) during first year, while 9405moths /ha were recorded during second year with an average of 9518 /ha during two consecutive years. The treatment of 50 traps /ha recorded significantly lowest population of eggs (0.78 /10 twigs), lowest larval population (1.32 /10 twigs) resulting in lowest fruit damage (3.71%).
Highlights
Tomato (Solanum lycopersicum L.) is one of the highly demanded vegetable crop having worldwide demand and production of fresh fruits.In India, tomato crop is mainly grown in the states of Andhra Pradesh, Orissa, West Bengal, Karnataka, Bihar, Gujarat, Tamil Nadu, Uttar Pradesh and Rajasthan
The data on larval population and per cent damaged fruits are concerned; the treatment of 50 traps /ha recorded lowest larval population (1.32 /10 twigs) and per cent fruit damage (3.71) and it was at par with the treatment of 40 traps /ha which recorded 1.38 larvae /10 twigs and 4.37 per cent fruit damage
The highest moth catches were recorded (9630 moths /ha) during first year, while 9405moths /ha were recorded during second year with an average of 9518 /ha during two consecutive years
Summary
Tomato (Solanum lycopersicum L.) is one of the highly demanded vegetable crop having worldwide demand and production of fresh fruits.In India, tomato crop is mainly grown in the states of Andhra Pradesh, Orissa, West Bengal, Karnataka, Bihar, Gujarat, Tamil Nadu, Uttar Pradesh and Rajasthan. In the present investigations, attempts were made to standardize the numbers of pheromone traps for mass trapping of male moths of H. armigera in tomato.
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