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Determination of famoxadone, fenamidone, fenhexamid and iprodione residues in greenhouse tomatoes

Angioni, Alberto and Porcu, Luciano and Dedola, Fabrizio (2012) Determination of famoxadone, fenamidone, fenhexamid and iprodione residues in greenhouse tomatoes. Pest Management Science, Vol. 68 (4), p. 543-547. eISSN 1526-4998. Article.

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DOI: 10.1002/ps.2287


BACKGROUND: Greenhouse tomato production is intended exclusively for fresh consumption. Typical greenhouse conditions provide a conducive environment for the development of different fungi,principally lateblightandgreymould, that can destroy plants and fruits. For this reason, different fungicides with different sites of action are used in integrated pest management strategies. Famoxadone, fenamidone, fenhexamid and iprodione are fungicides of difference classes with different actions that could be used to control tomato pests.
RESULTS: TheQuEChERS method showed good recoveries, and the analyticalmethod allowed good separation of the fungicides selected. Good results were obtained in terms of repeatability and intermediate precision, with a coefficient of variation of <9.8%. The limits of determination and quantification of themethodwere far below the maximum residual levels (MRLs) set by the EU for these fungicides in tomatoes. The analysis of fungicide residues showed that cv. Shiren accounted for higher residuelevels than cv. Caramba. The dissipation curves were similar in the two cultivars, indicating that the decrease in pesticides was not related to the tomato type.
CONCLUSIONS: Care should be taken when using pesticides in greenhouse conditions, because degradation mainly affects fruit growth. The size of the tomato, in particular its surface/weight ratio, is very important for defining pesticide residues. All fungicides used showed residue levels below the MRLs at the preharvest interval.

Item Type:Article
ID Code:6915
Uncontrolled Keywords:QuEChERS, tomato, fungicide residues, greenhouse
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/03 Arboricoltura generale e coltivazioni arboree
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > AGRIS Sardegna, Olmedo
Publisher:Blackwell / Wiley
Copyright Holders:© 2011 Society of Chemical Industry
Deposited On:02 Jan 2012 13:00

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