Pyrethroids such as β-cyfluthrin are synthetic analogues of the natural pyrethrins that are extracted from the flower of Pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). β-cyfluthrin is a commonly used insecticide on brassica leaves to control insects attack such as Lepidoptera, Coleoptera, Hemiptera, and Diptera families for better crop yield and quality. A field study was conducted to investigate the dissipation pattern of β-cyfluthrin on collard and kale leaves following spraying of the commercial formulation Baythroid® XL. The objectives of the study were to determine the dissipation constants and half-life (T½) values of β-cyfluthrin on kale and collard grown under field conditions and to determine the workers' re-entry time following β-cyfluthrin spraying for workers and consumer safety. Following spraying, residues of β-cyfluthrin were extracted from the leaves using ethyl acetate and cleaned up through an open glass chromatographic column packed with Florisil. Quantification and confirmation of the insecticide residues were carried out using a gas chromatograph (GC) equipped with an electron capture detector (GC/ECD) and a GC equipped with a mass selective detector (GC/MSD), respectively. The method successfully separated the 4 isomers of β-cyfluthrin, revealing the molecular ion fragments at m/z of 127, 163, 206, and 226, respectively. Following spraying, the initial residues (sum of isomers) of β-cyfluthrin were lower on collard (9.5 µg g-1) than on kale leaves (28.8 µg g-1 fresh leaves). The study revealed a greater T1/2 value of 8.2 days of β-cyfluthrin on collard than on kale leaves (5.1 days).
| Published in | International Journal of Applied Agricultural Sciences (Volume 12, Issue 1) |
| DOI | 10.11648/j.ijaas.20261201.12 |
| Page(s) | 12-22 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2026. Published by Science Publishing Group |
Baythroid ®XL, Mass Selective Detector, Initial Residues, Dissipation Constant, Half-lives
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APA Style
Antonious, G. F. (2026). Quantification of β-Cyfluthrin Residues on Field-Grown Kale and Collards Greens. International Journal of Applied Agricultural Sciences, 12(1), 12-22. https://doi.org/10.11648/j.ijaas.20261201.12
ACS Style
Antonious, G. F. Quantification of β-Cyfluthrin Residues on Field-Grown Kale and Collards Greens. Int. J. Appl. Agric. Sci. 2026, 12(1), 12-22. doi: 10.11648/j.ijaas.20261201.12
@article{10.11648/j.ijaas.20261201.12,
author = {George Fouad Antonious},
title = {Quantification of β-Cyfluthrin Residues on Field-Grown Kale and Collards Greens},
journal = {International Journal of Applied Agricultural Sciences},
volume = {12},
number = {1},
pages = {12-22},
doi = {10.11648/j.ijaas.20261201.12},
url = {https://doi.org/10.11648/j.ijaas.20261201.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijaas.20261201.12},
abstract = {Pyrethroids such as β-cyfluthrin are synthetic analogues of the natural pyrethrins that are extracted from the flower of Pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). β-cyfluthrin is a commonly used insecticide on brassica leaves to control insects attack such as Lepidoptera, Coleoptera, Hemiptera, and Diptera families for better crop yield and quality. A field study was conducted to investigate the dissipation pattern of β-cyfluthrin on collard and kale leaves following spraying of the commercial formulation Baythroid® XL. The objectives of the study were to determine the dissipation constants and half-life (T½) values of β-cyfluthrin on kale and collard grown under field conditions and to determine the workers' re-entry time following β-cyfluthrin spraying for workers and consumer safety. Following spraying, residues of β-cyfluthrin were extracted from the leaves using ethyl acetate and cleaned up through an open glass chromatographic column packed with Florisil. Quantification and confirmation of the insecticide residues were carried out using a gas chromatograph (GC) equipped with an electron capture detector (GC/ECD) and a GC equipped with a mass selective detector (GC/MSD), respectively. The method successfully separated the 4 isomers of β-cyfluthrin, revealing the molecular ion fragments at m/z of 127, 163, 206, and 226, respectively. Following spraying, the initial residues (sum of isomers) of β-cyfluthrin were lower on collard (9.5 µg g-1) than on kale leaves (28.8 µg g-1 fresh leaves). The study revealed a greater T1/2 value of 8.2 days of β-cyfluthrin on collard than on kale leaves (5.1 days).},
year = {2026}
}
TY - JOUR T1 - Quantification of β-Cyfluthrin Residues on Field-Grown Kale and Collards Greens AU - George Fouad Antonious Y1 - 2026/02/11 PY - 2026 N1 - https://doi.org/10.11648/j.ijaas.20261201.12 DO - 10.11648/j.ijaas.20261201.12 T2 - International Journal of Applied Agricultural Sciences JF - International Journal of Applied Agricultural Sciences JO - International Journal of Applied Agricultural Sciences SP - 12 EP - 22 PB - Science Publishing Group SN - 2469-7885 UR - https://doi.org/10.11648/j.ijaas.20261201.12 AB - Pyrethroids such as β-cyfluthrin are synthetic analogues of the natural pyrethrins that are extracted from the flower of Pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). β-cyfluthrin is a commonly used insecticide on brassica leaves to control insects attack such as Lepidoptera, Coleoptera, Hemiptera, and Diptera families for better crop yield and quality. A field study was conducted to investigate the dissipation pattern of β-cyfluthrin on collard and kale leaves following spraying of the commercial formulation Baythroid® XL. The objectives of the study were to determine the dissipation constants and half-life (T½) values of β-cyfluthrin on kale and collard grown under field conditions and to determine the workers' re-entry time following β-cyfluthrin spraying for workers and consumer safety. Following spraying, residues of β-cyfluthrin were extracted from the leaves using ethyl acetate and cleaned up through an open glass chromatographic column packed with Florisil. Quantification and confirmation of the insecticide residues were carried out using a gas chromatograph (GC) equipped with an electron capture detector (GC/ECD) and a GC equipped with a mass selective detector (GC/MSD), respectively. The method successfully separated the 4 isomers of β-cyfluthrin, revealing the molecular ion fragments at m/z of 127, 163, 206, and 226, respectively. Following spraying, the initial residues (sum of isomers) of β-cyfluthrin were lower on collard (9.5 µg g-1) than on kale leaves (28.8 µg g-1 fresh leaves). The study revealed a greater T1/2 value of 8.2 days of β-cyfluthrin on collard than on kale leaves (5.1 days). VL - 12 IS - 1 ER -