2016
DOI: 10.1139/cjm-2016-0022
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A review of techniques for detecting Huanglongbing (greening) in citrus

Abstract: Huanglongbing (HLB) is the most destructive disease of citrus worldwide. Monitoring of health and detection of diseases in trees is critical for sustainable agriculture. HLB symptoms are virtually the same wherever the disease occurs. The disease is caused by Candidatus Liberibacter spp., vectored by the psyllids Diaphorina citri Kuwayama and Trioza erytreae. Electron microscopy was the first technique used for HLB detection. Nowadays, scientists are working on the development of new techniques for a rapid HLB… Show more

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Cited by 43 publications
(23 citation statements)
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“…So far, the research on early warning monitoring of fruit-tree diseases has not shown an increasing trend, though a few studies have suggested the feasibility of UAVs in detecting biotic diseases in orchards. One reason may be that most fruit-tree diseases are not lethal, while HLB disease has attracted more attention because of its globally lethal effect on citrus crops (Arredondo Valdés et al 2016). The complexity of pathological analysis for disease detection is also an important factor restricting related research.…”
Section: Productivity and Disease Monitoringmentioning
confidence: 99%
“…So far, the research on early warning monitoring of fruit-tree diseases has not shown an increasing trend, though a few studies have suggested the feasibility of UAVs in detecting biotic diseases in orchards. One reason may be that most fruit-tree diseases are not lethal, while HLB disease has attracted more attention because of its globally lethal effect on citrus crops (Arredondo Valdés et al 2016). The complexity of pathological analysis for disease detection is also an important factor restricting related research.…”
Section: Productivity and Disease Monitoringmentioning
confidence: 99%
“…Furthermore, the evaluation of HLB disease through C Las detection is negatively affected by its irregular distribution in leaves and by the low concentration of C Las cells during the initial phase of the latent period. In addition, the technique has limitations in differentiating viable and dead bacterial cells from each other, leading to an inaccurate quantification 13 15 . Efforts have been made in order to have a successful disease diagnostic through other analytical platforms, such as nuclear magnetic resonance (NMR) spectroscopy 16 , 17 , infrared spectroscopy (IV) 18 , capillary electrophoresis with diode array detection (CE-DAD) 19 , differential mobility spectrometry (DMS) 20 , and confocal Raman microscopy 21 .…”
Section: Introductionmentioning
confidence: 99%
“…Revisiones adelantadas por otros autores como Iikhar, Rauf, Shahzad y Zahid (2016) han identicado soluciones para el control de la enfermedad como técnicas tosanitarias, control sobre las poblaciones de vectores, prácticas culturales, quimioterapia y la propagación de material libre de la enfermad, dejando a un lado las técnicas de detección rápida. Otras revisiones desarrolladas por Valdés et al (2016) se han enfocado en la rapidez de la detección, debido a que el mecanismo más ampliamente usado es la exploración árbol a árbol, que resulta costosa e intensiva en mano de obra, por lo que se destacan las técnicas de reacción en cadena polimerasa y otras técnicas de tratamiento de imágenes. Cabe destacar que en ninguna de estas revisiones se muestra un modelo de revisión estructurada y tratamiento de resultados de bases de datos cientícas o tecnológicas que sustenten sus hallazgos y permitan evidenciar la evolución de esta temática a través del tiempo.…”
Section: Introductionunclassified