Manuka Oil, A Natural Herbicide with Preemergence Activity
| Autor: | Daneel Ferreira, Franck E. Dayan, Marja Koivunen, Jannie P.J. Marais, J'Lynn Howell |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
0106 biological sciences
Active ingredient biology Lemongrass Oil Multiple applications Leptospermone 04 agricultural and veterinary sciences Plant Science biology.organism_classification 01 natural sciences law.invention Leptospermum scoparium 010602 entomology chemistry.chemical_compound chemistry Agronomy law 040103 agronomy & agriculture Organic farming 0401 agriculture forestry and fisheries Manuka Oil Agronomy and Crop Science Essential oil |
| Zdroj: | Weed Science. 59:464-469 |
| ISSN: | 1550-2759 0043-1745 |
| DOI: | 10.1614/ws-d-11-00043.1 |
| Popis: | Natural herbicides approved in organic agriculture are primarily nonselective burn-down essential oils applied POST. Multiple applications are often required due to their low efficacy. To address this problem, the in vivo herbicidal activity of manuka oil, the essential oil distilled from manuka tree (Leptospermum scopariumJ.R. and G. Forst), was tested on selected broadleaf and grass weeds. While manuka oil exhibited good POST activity when applied in combination with a commercial lemongrass oil–based herbicide, it ultimately demonstrated interesting PRE activity, providing control of large crabgrass seedlings at a rate of 3 L ha−1. Manuka oil and its main active ingredient, leptospermone, were stable in soil for up to 7 d and had half-lives of 18 and 15 d, respectively. The systemic activity of manuka oil addresses many of the current limitations associated with natural herbicides. Additionally, its soil persistence opens up a multitude of new possibilities for the use of manuka oil as a tool for weed management and may be a potential bridge between traditional and organic agriculture. |
| Databáze: | OpenAIRE |
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