Author(s)

Flavie W. Tapsoba^1*, Issoufou Ouedraogo¹, Omer Sacamba Aimé Hema¹, Antoine Sanon²

¹Entomology Laboratory, Farako-Bâ Station, Institute of the Environment and Agricultural Research (INERA), Bobo-Dioulasso, Burkina Faso.
²Laboratory of Fundamental and Applied Entomology (LEFA), Science and Technology Doctoral School, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso.

Maize production in Burkina Faso faces a number of constraints, the main one being attacks by insect pests. One of these insects is the fall armyworm (Spodoptera frugiperda J.E. Smith). Control of this insect began with the application of chemical insecticides, which are ineffective in the long term and give resistance problems. This study aims to evaluate the efficacy of five insecticides in order to determine the level of resistance of Spodoptera frugiperda to these insecticides. The effectiveness of insecticides was evaluated in the field using a Fisher block experimental design with five repetitions and six treatments. The parameters evaluated concerned the number of larvae at all stages and the damage observed on maize plants and cobs. The work was carried out at the Farako-Bâ station during the rainy season of 2023-2024 and at the Bama station during the dry season of 2023-2024. The results obtained in the rainy season showed that Chlorantraniliprole and Indoxacarb were more effective than the untreated control and the other insecticides tested. The rate of plants and cobs attacked was 0.59% and 32.34% respectively in plots treated with Chlorantraniliprole. However, the rate of plants and cobs attacked was 1.52% and 44% respectively for the plots treated with Indoxacarb. In the dry season, Chlorantraniliprole, Indoxacarb and Emamectin benzoate were the most effective. The rate of plant attack in plots treated with Chlorantraniliprole was 0.52%, while the rate of cob attack was 1.35%. The plots treated with Indoxacarb had 1.92% and 5.96% of plants and cobs attacked respectively. The plots treated with Emamectin benzoate had 0.63% and 7.95% of plants and cobs attacked respectively. These results show that these insecticides can be used to manage this pest.Subject AreasAgricultural Sciences, Entomology

Spodoptera frugiperda, Chemical Insecticides, Maize, Resistance, Burkina Faso

Tapsoba, F. , Ouedraogo, I. , Hema, O. and Sanon, A. (2025) Evaluation of the Efficacy of Five Chemical Insecticides in the Protection of Maize against the Moth Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Burkina Faso. Open Access Library Journal, 12, 1-18. doi: 10.4236/oalib.1112966.