Research Article Published: September 22, 2025 Volume 1, Issue 7

Comparative Efficacy of Two Bionematicides (Neem/Chili-Based and Trichoderma harzianum-Based) Against Tomato Parasitic Nematodes and Their Impact on Yield in Bobo-Dioulasso, Burkina Faso

Authors

Issa Traoré1

Affiliation: Institute of Environment and Agricultural Research (INERA), Nematology Laboratory Bobo-Dioulasso, Burkina Faso.

Souleymane Ouédraogo2

Affiliation: Yembila Abdoulaye TOGUYENI University (University of Fada N’Gourma), High Institute for Sustainable Development, Fada N’Gourma, Burkina Faso.

Aminata Sawadogo2

Affiliation: Yembila Abdoulaye TOGUYENI University (University of Fada N’Gourma), High Institute for Sustainable Development, Fada N’Gourma, Burkina Faso.

Abstract

This study assessed the biological efficacy of two bionematicides—NEMATISAIN (a blend of 6% neem oil, 2% chili pepper extract, 1% citrus terpene extract, and trace elements) and FERTISAIN (containing 3% Gamma lactone from Trichoderma harzianum extracts, 1% citrus terpene oil, 0.5% clove oil, and essential minerals)—in comparison to the chemical nematicide VELUM (Fluopyram 400 g/L). The trials were conducted at the Léguéma market gardening site in Bobo-Dioulasso, western Burkina Faso, known for its high nematode infestation. All evaluated products demonstrated significant effectiveness in controlling parasitic nematodes by markedly reducing the population densities of major species, including Meloidogyne javanica, Pratylenchus brachyurus, Scutellonema cavenessi, and Helicotylenchus dihystera. Crucially, the nematicide treatments led to substantial increases in tomato yield compared to the untreated control. The bionematicides, particularly FERTISAIN (52.76%), surpassed the yield gains of the chemical standard VELUM (37.79%), with NEMATISAIN also showing strong performance (35.48%). These results confirm that both plant-extract-based and microbial-based bionematicides offer viable, effective, and environmentally preferable alternatives to chemical control for managing tomato parasitic nematodes and boosting productivity in the region.

Keywords

bionematicide parasitic nematodes tomato yield gain Meloidogyne javanica Trichoderma harzianum Burkina Faso

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APA Style:

Traoré, I., Ouédraogo, S., & Sawadogo, A. (2025). Comparative Efficacy of Two Bionematicides (Neem/Chili-Based and Trichoderma harzianum-Based) Against Tomato Parasitic Nematodes and Their Impact on Yield in Bobo-Dioulasso, Burkina Faso. International Journal of Advanced Research in Engineering and Related Sciences, 1(7), 23-32.

IEEE Style:

I. Traoré, S. Ouédraogo, and A. Sawadogo, "Comparative Efficacy of Two Bionematicides (Neem/Chili-Based and Trichoderma harzianum-Based) Against Tomato Parasitic Nematodes and Their Impact on Yield in Bobo-Dioulasso, Burkina Faso," International Journal of Advanced Research in Engineering and Related Sciences, vol. 1, no. 7, pp. 23-32, 2025.

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