Economic Impact of Insecticide Resistance Management (IRM) Strategies in Cotton in Muktsar District (Punjab)

摘要

To disseminate Insecticide Resistance Management (IRM) strategies, 10 villages were adopted in Muktsar district of Punjab during 2008 and 2009. Two villages were kept as check (Non-IRM) for comparing the impact of IRM strategies on the major insect pests and natural enemies in Btcotton arthropod fauna. The impact of adoption of IRM strategies leads to reduction in the population of jassid and whitefly in IRM villages as compared to non-IRM villages. The mean population of nymphs jassid, Amrasca biguttula biguttula (Ishida), and whitefly, Bemisia tabaci (Gennadius), adults per three leaves was 0.41, 0.45 and 0.61, 0.69 in IRM villages, while in non-IRM villages, it was 0.50, 2.00 and 0.80, 2.40 during 2008 and 2009 crop season, respectively. No incidence of bollworms was observed in IRM as well as Non-IRM villages. Cotton IRM villages were sprayed 3.73 and 3.40 as compared to 6.30 and 6.05 in non-IRM villages for both the years. The per cent reduction in number of sprays, cost of sprays and increasein seed-cotton yield was 40.79 and 43.80, 64.96 and 51.16, 22.70 and 30.45 over non-IRM villages in 2008 and 2009, respectively. The additional net profit per hectare in IRM villages was Rs 11422 and Rs 18441 during both the years.