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Antifeedant activity of long-chain alcohols, and fungal and plant metabolites against pea aphid (Acyrthosiphon pisum) as potential biocontrol strategy

AuthorsAznar-Fernández, T.; Cimmino, Alessio ; Masi, Marco; Rubiales, Diego ; Evidente, Antonio
KeywordsPea aphid
Long chain alcohols
Fungal and plant metabolites
Issue Date2019
PublisherTaylor & Francis
CitationNatural Product Research 33(17): 2471-2479 (2019)
AbstractAphids are noxious insect pests of major crops including cereals and legumes. Particularly, pea aphid (Acyrthosiphon pisum) causes significant yield and quality loses in pea. Crop protection is largely based on noxious chemical pesticides which have prompted a renewed interest in the discovery of natural products as alternatives to synthetic insecticides. In this study different classes of natural compounds were tested in dual choice bioassays to evaluate their feeding deterrence and mortality effect on pea aphid. High feeding deterrence was produced by some of the compounds, particularly1-hexadecanol, gliotoxin, cyclopaldic acid and seiridin. On the contrary, aphid mortality was low although significant for 1-heptadecanol, cytochalasin A, 1-nonadecanol and gliotoxin. Phytotoxicity assessment showed low or imperceptible plant damaged for cytochalasin A, seiridin and 1-nonadecanol. The results obtained showed the potential of seiridin to be used as an alternative to synthetic insecticides.
Publisher version (URL)https://doi.org/10.1080/14786419.2018.1452013
Appears in Collections:(IAS) Artículos
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