Archives

Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2021, Volume : 9, Issue : 1
First page : (24) Last page : (35)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8532

Effectiveness of Garlic and Onion Aqueous Extracts on Tomato Root-Knot Nematodes (Meloidogyne sp.) in the Autonomous District of Yamoussoukro in Central Côte d’Ivoire

Assiri Patrice Kouamé, Yadom Yao François Regis Kouakou* , Kafondja Estelle Coulibaly, Koutoua Séka, Fatoumatou Fofana and Hortense Atta Diallo
Plant Health Unit, Nangui Abrogoua University, 02 BP 801 Abidjan 02, Côte d’Ivoire
*Corresponding Author E-mail: yadomregis@yahoo.fr
Received: 9.12.2020 | Revised: 14.01.2021 | Accepted: 20.01.2021 

 ABSTRACT

Cultivated for its fruit, tomato is subject to attack by root-knot nematodes which cause huge production losses. This study helps improve tomato production by controlling root-knot nematodes using Alliaceae extracts. To this end, phytosanitary surveys carried out in tomato fields in the Autonomous District of Yamoussoukro made it possible to establish the symptomatology caused by root-knot nematodes on tomatoes and to collect samples. Nematodes were extracted from soil and tomato root samples respectively by the Whitehead tray and Baermann maceration methods, then identified and quantified. The in vitro and in vivo effectiveness of garlic and onion aqueous extracts was assessed on root-knot nematodes. Root galls, chlorosis and reduction of the root system were observed on tomato plants of varieties PADMA and COBRA 26 with prevalence and severity higher than 50%. Meloidogyne sp. was the main nematode extracted from tomato soils and roots. Garlic extract developed greater nematicidal activity, that is, 55.52% mortality than that of onion extract (29.04%). However, treatments carried out in vivo, with both garlic and onion extracts reduced root gall development and improved tomato plant development. There is therefore an agronomic advantage in combining garlic and onion extracts in the control of Meloidogyne sp. infections in tomato.

Keywords: Garlic extract, Nematicidal activity, Onion extract, Root-knot nematodes, Tomato.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Kouamé, A. P., Kouakou, Y. Y. F. R., Coulibaly, K. E., Séka, K., Fofana, F., & Diallo, H. A. (2021). Effectiveness of Garlic and Onion Aqueous Extracts on Tomato Root-Knot Nematodes (Meloidogyne sp.) in the Autonomous District of Yamoussoukro in Central Côte d’Ivoire, Ind. J. Pure App. Biosci. 9(1), 24-35. doi: http://dx.doi.org/10.18782/2582-2845.8532