Abstract

OLVERA-VARGAS, Luis Alberto; QUIROZ GASPAR, Ángel de Jesús; CONTRERAS-MEDINA, David Israel  and  AGUILAR-RIVERA, Noé. Potential risk analysis of Huanglongbing through geospatial technology in Colombia. Cienc. Tecnol. Agropecuaria [online]. 2020, vol.21, n.3, e1552.  Epub Aug 31, 2020. ISSN 0122-8706.  https://doi.org/10.21930/rcta.vol21_num3_art:1552.

Huanglongbing (HLB) is the most destructive disease that currently impacts citrus in the world. HLB was first detected in the Americas in Brazil and then in Florida (the United States). The citrus growing areas of Colombia were free of the disease, but in April 2016, Instituto Colombiano Agropecuario (ICA) declared phytosanitary quarantine in the department of La Guajira due to the presence of HLB. At that time, the control and eradication actions were intensified; nonetheless, the report of the first half of 2018 prepared by ICA reported the presence of the HLB in six departments in northern Colombia. This study proposes a methodology to analyze the potential risk of HLB and its vector Diaphorina citri, through the use of geospatial technology, considering the location of plant hosts, the development time of the insect host in degree-days and bioclimatic variables. The results indicate that about 15% of the citrus areas are at high risk of the presence of HLB. This method is presented as an option for monitoring the disease on a regional scale, which is also characterized by being automated, with high spatio-temporal dynamics, and can be used for early detection of the disease.

Keywords : geographical information systems; HLB; plant disease control; surveillance systems; technology (geospatial).

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