Chemical control of Chilo partellus on maize crop in district Mansehra

Considering the economic importance of the maize crop and the losses caused by the maize stem borer. A research was conducted during the Kharif season 2015 to investigate an infestation of insect pest and evaluating certain granular insecticides as a chemical control method against maize stem borer on maize cultivar BS-1, at the Agricultural, Research Station, Baffa, Mansehra. In this trial, some granular insecticides like Fipronil 0.3G, Furadon 3G, Diazinon 5G, Disulfoton 5G, and Padan were evaluated for the control of maize stem borer and effect on crop production. The results were determined based on the number of the larvae per plant, several dead hearts, and damaged plants per plot. It can be inferred from the obtained data that Padan was the most efficient in reducing the number of larvae Chilo partellus (Swinhoe) (Crambidae: Lepidoptera) (0.11), number of dead heart plants (0.11) and plant damage (0.55) followed Furadon 3G (0.17), (0.18), and (0.89), Diazinon 5G (0.21), (0.37) and (1.32), Fipronil 0.3G (0.24), (0.47) and (1.6), Disulfoton 5G (0.30), (0.66) and (1.95) in descending order as compared to check (0.60), (1.11) and (3.15) respectively. A granular form of insecticides should be preferred the liquid form. Moreover, the granules Padan and Furadon may give better results than the other granular insecticides available in the market.