Dissipation kinetics of novaluron in tomato, an arid ecosystem pilot study

Novaluron, a newly introduced insecticide, is used for control of a number of field pests. However, information regarding novaluron residues and dissipation profile is limited. In this study, dissipation and residual levels of novaluron in tomato under open field conditions were investigated using h...

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Bibliographic Details
Published in:Toxicological and environmental chemistry 2014-01, Vol.96 (1), p.41-47
Main Authors: Malhat, Farag M., Loutfy, Naglaa M., Ahmed, Mohamed Tawfic
Format: Article
Language:English
Subjects:
arid ecosystem
Arrays
Chromatography
Detectors
Dissipation
Ecosystem studies
Environmental chemistry
Half life
Health hazards
High performance liquid chromatography
Insecticides
Kinetics
Lycopersicon esculentum
novaluron
Pest control
Pests
Residues
Tomatoes
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Summary:Novaluron, a newly introduced insecticide, is used for control of a number of field pests. However, information regarding novaluron residues and dissipation profile is limited. In this study, dissipation and residual levels of novaluron in tomato under open field conditions were investigated using high performance liquid chromatography equipped with diode array detector (HPLC-DAD) with quick, easy, cheape, effective, rugged (QuEChERS) method. The method was validated using blank samples spiked at three levels and results showed that recoveries ranged from 93% to 99%. Novaluron residues tend to dissipate following first-order rate kinetics with half-life of 2.08 days. Data demonstrated that the use of novaluron at recommended doses would not pose any hazards to consumers. The present results aid to establish the safe use of this pesticide on tomatoes, and possibly on other crops in Egypt.
ISSN:0277-2248
1029-0486
DOI:10.1080/02772248.2014.911538