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VOL. 10, ISSUE 1 (2025)
Agronomic performance and pest susceptibility of four maize cultivars (Zea mays L.) in Lower Casamance (South-West Senegal)
Authors
Baboucar Bamba, Etienne Tendeng, Mame fatoumata Goudiaby, Anne Marie Mendy
Abstract
In Senegal, maize is the third most widely
produced cereal. However, maize productivity is low due to a number of
constraints, including the problem of adaptability of varieties to
environmental conditions. The aim of this study is to show the agro
morphological performance and pest susceptibility of four maize varieties (V1:
Obatmapa, V2: Suwan, V3: Eraly Thai and V4: DMR ESR White) in Lower Casamance.
A randomised complete block design with four replications was adopted.
Production data (number of ears and yield) and entomological data (insect
diversity, abundance of pests and natural enemies, incidence and severity of
pests). Pests and natural enemies were sampled on 25 plants taken at random
every 15 days. The larvae found were incubated in the laboratory until the
emergence of adult pests or parasitoids. The Early Thaï (4.46 t/ha) and DMR ESR
White (4.54 t/ha) varieties gave the best yields. The specie Rhopalosiphum
maidis has the higher abundance (1255 individuals) followed by the specie Spodoptera
frugiperda (596 individuals) and the specie Busseola fusca (77
individuals). The varieties Suwan (incidence 29,5%; severity 15,7%) and Early
Thaï (incidence 31%, severity 6,2%) were more susceptible to the pests Spodoptera
frugiperda and Busseola fusca respectively. DMR ESR White is a
promising variety because it has given a good yield and was less susceptible to
pests. Its use in food self-sufficiency programmes could reduce malnutrition in
Africa.
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Pages:21-27
How to cite this article:
Baboucar Bamba, Etienne Tendeng, Mame fatoumata Goudiaby, Anne Marie Mendy "Agronomic performance and pest susceptibility of four maize cultivars (<i>Zea mays</i> L.) in Lower Casamance (South-West Senegal)". International Journal of Entomology Research, Vol 10, Issue 1, 2025, Pages 21-27
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