Abstract

Root-knot nematodes, Meloidogyne species, are strongly destructive and extremely difficult to manage due to their poliphagy and worldwide spread (1). Control of these parasites has been prevalently based on chemical treatments, but environmental concerns are imposing the adoption of safer management strategies. Plant-derived compounds can represent a concrete alternative to chemicals, as nematicidal secundary metabolites are present in many plant families (2). Plant essential oils and their constituents have a great potential for nematode control since they can be developed for the use as nematicides themselves or can be used as model compounds for the development of more active derivatives (3, 4). Soil drench treatments with 50, 100 and 200 ml kg-1 soil solutions of the essential oils from five different species, i.e. Schinus molle, Cinnamomum camphora, Eugenia caryophillata, Cinnamomum zeylanicum and Citrus aurantium were comparatively tested against the root-knot nematode Meloidogyne incognita on tomato in pot. Plant growth parameters, gall infestation and nematode multiplication on tomato roots were evaluated after a two-month permanence of plants in a greenhouse at 25 °C. All the treatments with the five essential oils but the 50 and 100 and 200 ml kg-1 soil rates of C. zeylanicum significantly suppressed the number of eggs and juveniles of M. incognita on tomato roots compared to the non-treated control. Effect of treatments was less evident on gall formation on tomato roots. Essential oils of S. molle and E. caryophillata were overall more suppressive than the other three oils and generally as nematotoxic as fenamiphos chemical control. Tomato top and root biomass was not affected by all the tested treatments. Soil treatments with essential oils formulations were confirmed to be an effective tool for a sustainable management of root-knot nematode infestations.

Autore Pugliese

• Sasanelli Nicola , D'addabbo Trifone

Tutti gli autori

• Laquale S.; Sasanelli N.; D'Addabbo T.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2013

ISSN

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ISBN

978-615-5270-05-5

Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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