Essential oils as alternatives of synthetic herbicides for horticultural crops

[en] As the controversy behind synthetic herbicides grow, the search for efficient, sustainable and environmentally-friendly herbicides becomes more and more pressing. This need is all the more present for horticultural crop where the number of herbicides is limited and their efficiency limited. In this context, our study aimed to evaluate the post-emergence phytotoxicity of the formulated EO1 in greenhouse and field trials. The two trials were realised at different dose against the weeds Lolium perenne and Trifolium incarnatum for the greenhouse trials and against several monocotyledonous and dicotyledonous weeds for two consecutive years for field trials. The herbicidal activity of EO1 was first confirmed in controlled conditions were the EO1 sprayed twice at highest concentration 2N showed a phytotoxicity of 100% against dicotyledons and 89% against monocotyledons. The high efficiency against dicotyledons was supported by the field trials where at concentration 2N sprayed twice, the phytotoxicity was comparable to the positive control with 98% and 100% phytotoxicity in 2019 and 2020 respectively. The efficiency against monocotyledons in the field trials was more dependent on the dose and the year. Overall, EO1 can be suggested as a potential environmentally-friendly alternative to synthetic post-emergence herbicides.

Disciplines :

Agriculture & agronomy

Author, co-author :

Foncoux, Bérénice ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs

Dal Maso, Simon ; APEO

Ben Kaab, Sofiène ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs

Jijakli, Haissam ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs

Language :

English

Title :

Essential oils as alternatives of synthetic herbicides for horticultural crops

Alternative titles :

[fr] Les huiles essentielles comme alternatives aux herbicides synthétiques dans les cultures horticoles

Original title :

[en] Essential oils as alternatives of synthetic herbicides for horticultural crops

Publication date :

2023

Event name :

International Horticultural Congress

Event organizer :

International Society for Horticultural Science

Event date :

15/8/2022-19/8/2022

Audience :

International

Main work title :

Acta Horticulturae

Publisher :

International Society for Horticultural Science

Peer reviewed :

Peer reviewed

Available on ORBi :

since 23 August 2022

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