04 Haz 2025 Çarşamba
Seasonal abundance and population dynamics of panicle insect pests of sorghum (Sorghum bicolor (L.) Moench) in Northeastern Nigeria
Abstract : Study on panicle insect pests of sorghum (Sorghum bicolor (L.) Moench) was conducted at Yola, Adamawa State and Kaltungo, Gombe State in 2021 cropping season. The field experiment was laid using Complete Randomized Block Design (CRBD) which was replicated 3 times in 12m2 plots consisting of eight sorghum varieties (SAMSORG-41, SAMSORG-14, SAMSORG-17, SAMSORG-37, SAMSORG-39, Tiksha-Mamza; Ex-Garkida, Ex-Tula Red cultivar and Ex-Tula Farafara cultivar). The experiment was to determine the seasonal abundance and population dynamics of panicle insect pests of sorghum (Sorghum bicolor L. Moench) in North-eastern Nigeria. The stage that supported the highest population of panicle insect pests was soft dough stage (SDS) in both locations with the least towards the middle and the end of November hard dough stage (HDS). The time of the year (planting season) that haboured the highest population was 17 and 18 October for the early maturing varieties and 31 October to 1 November for the late maturing varieties. Planting of sorghum should be synchronized to escape the highest population density during planting periods for a sustainable production.