[ Impact de la fréquence des traitements phytosanitaires sur les dégâts de Spodoptera frugiperda J.E Smith (Lepidoptera: Noctuidae) sur le maïs à l’Ouest du Burkina Faso ]
Volume 42, Issue 1, March 2024, Pages 94–101
Aboul Gani Diao1, Issoufou Ouedraogo2, Omer Aimé Sacamba Hema3, and Antoine Sanon4
1 Institut de l’Environnement et de Recherches Agricoles (INERA), Station de Farako-Bâ, Laboratoire d’Entomologie, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso
2 Université Joseph Ki-Zerbo, Laboratoire d’Entomologie Fondamentale et Appliquée, 06 BP 9499 Ouagadougou 06, Burkina Faso
3 Institut de l’Environnement et de Recherches Agricoles (INERA), Station de Farako-Bâ, Laboratoire d’Entomologie, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso
4 Laboratoire d'Entomologie Fondamentale et Appliquée, UFR, SVT, Université Joseph KI-ZERBO, Burkina Faso
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
With the aim of contributing to the protection of corn against the larvae of Spodoptera frugiperda JE Smith in Burkina Faso, we evaluated the effectiveness of four phytosanitary treatments based on chemical insecticides for the protection of corn plants. The experimental setup is a Fisher block comprising 04 repetitions and 7 treatments. Our study showed a significant effect of the number of insecticide treatments on the infestation rate, larval density but also the severity of damage caused to plants. However, the number of insecticide treatments evaluated in this study did not have a significant effect on yield (Pr( F = 0.531). The average yield of the plants was statistically identical when the plants were protected seven, three and two times with synthetic insecticides based on Emamectin benzoate and Flubendiamide + Thiacloprid. Furthermore, the yield analysis also does not show any difference between untreated plots and plots having received synthetic insecticide applications. It appears from this study that high numbers of insecticide treatments do not necessarily lead to an increase in yield. In areas heavily affected by the pest, three insecticide applications based on approved synthetic insecticides can be used against S. frugiperda damage.
Author Keywords: Number of treatments, insecticides, yield, Fall Armyworm, Spodoptera frugiperda, maize, Burkina Faso.
Volume 42, Issue 1, March 2024, Pages 94–101
Aboul Gani Diao1, Issoufou Ouedraogo2, Omer Aimé Sacamba Hema3, and Antoine Sanon4
1 Institut de l’Environnement et de Recherches Agricoles (INERA), Station de Farako-Bâ, Laboratoire d’Entomologie, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso
2 Université Joseph Ki-Zerbo, Laboratoire d’Entomologie Fondamentale et Appliquée, 06 BP 9499 Ouagadougou 06, Burkina Faso
3 Institut de l’Environnement et de Recherches Agricoles (INERA), Station de Farako-Bâ, Laboratoire d’Entomologie, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso
4 Laboratoire d'Entomologie Fondamentale et Appliquée, UFR, SVT, Université Joseph KI-ZERBO, Burkina Faso
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
With the aim of contributing to the protection of corn against the larvae of Spodoptera frugiperda JE Smith in Burkina Faso, we evaluated the effectiveness of four phytosanitary treatments based on chemical insecticides for the protection of corn plants. The experimental setup is a Fisher block comprising 04 repetitions and 7 treatments. Our study showed a significant effect of the number of insecticide treatments on the infestation rate, larval density but also the severity of damage caused to plants. However, the number of insecticide treatments evaluated in this study did not have a significant effect on yield (Pr( F = 0.531). The average yield of the plants was statistically identical when the plants were protected seven, three and two times with synthetic insecticides based on Emamectin benzoate and Flubendiamide + Thiacloprid. Furthermore, the yield analysis also does not show any difference between untreated plots and plots having received synthetic insecticide applications. It appears from this study that high numbers of insecticide treatments do not necessarily lead to an increase in yield. In areas heavily affected by the pest, three insecticide applications based on approved synthetic insecticides can be used against S. frugiperda damage.
Author Keywords: Number of treatments, insecticides, yield, Fall Armyworm, Spodoptera frugiperda, maize, Burkina Faso.
Abstract: (french)
Dans l’objectif de contribuer à la protection du maïs contre les larves de Spodoptera frugiperda JE Smith au Burkina Faso, nous avons évalué l’efficacité de quatre traitements phytosanitaires à base d’insecticides chimiques pour la protection des plantes de maïs. Le dispositif d’expérimentation est un bloc de Fisher comportant 04 répétitions et 7 traitements. Notre étude a permis de montrer un effet significatif du nombre de traitements insecticides sur le taux d’infestation, la densité larvaire mais aussi la sévérité des dégâts causée aux plantes. Cependant, le nombre de traitements insecticides évalué dans cette étude n’a pas eu d’effet significatif sur le rendement (Pr(F = 0,531). Le rendement moyen des plantes ont été statistiques identique lorsque les plantes étaient protégées à sept, trois et deux fois avec des insecticides synthétiques à base d’Emamectine benzoate et de Flubendiamide + Thiaclopride. De plus l’analyse du rendement ne montre pas également de différence entre les parcelles non traitée et les parcelles ayant reçu des applications insecticides synthétiques. Il ressort de cette étude que les nombres de traitements insecticides élevé n’entraine pas forcément une augmentation du rendement. Dans les zones fortement touchées par le ravageur, trois applications insecticides à base d’insecticides synthétiques homologués peuvent être utilisé contre les dégâts de S. frugiperda.
Author Keywords: nombre de traitement, insecticides, rendement, Chenille légionnaire d’automne, Spodoptera frugiperda, maïs, Burkina Faso.
How to Cite this Article
Aboul Gani Diao, Issoufou Ouedraogo, Omer Aimé Sacamba Hema, and Antoine Sanon, “Impact of the frequency of phytosanitary treatments on the damage of Spodoptera frugiperda J.E Smith (Lepidoptera: Noctuidae) on corn in western Burkina Faso,” International Journal of Innovation and Applied Studies, vol. 42, no. 1, pp. 94–101, March 2024.
