BIO-DIVERSITY OF MAIZE STEM BORERS IN KWARA STATE, NIGERIA.

Author(s): OYEWALE, R. O., SALAUDEEN, M. T., BAMAIYI, L.J., BELLO, L.Y
Volume/Issue: Volume 2 , Issue 1 (2022)

ABSTRACT:

A survey of maize stem borers was conducted in selected Local Government Areas (LGAs) of Kwara State (Oyun, Irepodun, Ilorin East and Edu) from June to August, 2019. Five farms were surveyed in each LGAs for stem borer larvae, the larvae obtained were caged differently based on LGAs and reared to adults, then taken to Insect Museum at Department of Crop protection, Ahmadu Bello University, Zaria, Kaduna State for identification. The results showed that species of Sesamia calamistis were found to be prevalent. Also results revealed that Ilorin East Local Government Area had the highest incidence (26.4 %) and severity (49.0 %) of maize borer infestation. The result of this study has shown that all the four LGAs surveyed for maize stem borers were positive but varied in terms of incidence and severity from one LGA to the other during the 2018 cropping season. Conventional identification carried out in the insect museum showed that S. calamistis was the most predominant stem/stalk borer species.

KEYWORDS:

Survey, Stem Borers, Larvae, Species, Maize.