Efficacy of Maize Varieties and Lambdacot 500EC Concentrations on the Control of Maize Stem Borer (Busseola fusca Fuller) (Lepidoptera: Noctuidae)
NJE Vol. 34: 1-8, 2018
DOI: 10.36108/NJE/8102/43(0110)
Degri, M. M., Samaila, A. E., Mailafiya, D. M. and Mshelia, J. S.
Abstract: The efficacy of maize varieties and Lambdacot 500EC concentrations were assessed on the damage caused by maize stem borer (Busseola fusca Fuller) (Lepidoptera: Noctuidae) on maize during 2015 and 2016 cropping seasons. The experiment was a split-plot design with Lambdacot 500EC concentrations (0.5 , 1.0 and 1.5 l/ha) as the main plots and three maize varieties (SAMMAZ 14, DMR-LSR-Y and BR9943-DMR-SR-W) as the sub-plots on a plot size of 3.0 m x 4.0 m replicated three times. Maize plants were sprayed with the different Lambdacot 500 EC concentrations at 4 and 6 weeks after planting (WAP) The results obtained showed that lowest number of maize plants with leaf sheath pin-holes, dead hearts, and stem tunnels and cobs damage by larvae were recorded on SAMMAZ 14 and DMR-LSR-Y while BR9943-DMR-SR-W had the highest. Maize plants treated with Lambdacot 500EC at 1.0 l/ha and 1.5 l/ha had lowest leaf sheath pin-holes, dead hearts, stem tunnels and cob damage while untreated maize plants had the highest damage. The highest maize grain yields was recorded on SAMMAZ 14 and DMR-LSR-Y on 1.0 l/ha and 1.5 l/ha concentrations. This study recommended SAMMAZ 14 and DMR-LSR-Y obtained from IAR treated with Lambdacot 500 EC at 1.0 l/ha and 1.5 l/ha concentrations to maize farmers in the study area.
Keywords: Maize, Lambdacot 500EC, Concentrations, Stem borer, Busseola fusca.