Resumo

RIOS-SUAREZ, Omar; FERNANDEZ-HERRERA, Claudio  e  PEREZ-GARCIA, Karol. Damage characterization and spatial distribution of Ceroplastes cirripediformis in yellow passion fruit in the Colombian Caribbean. rev.udcaactual.divulg.cient. [online]. 2022, vol.25, n.1, e1739.  Epub 17-Fev-2022. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v25.n1.2022.1739.

The passion fruit is the main species of the genus Passiflora. Its main producers are Brazil, Ecuador, Colombia, and Peru with approximately 805,000 t/year. In Colombia, 8,164 ha were cultivated in 2019, with a production of 137,622 t and an average yield of 16.86 t/ha. However, this agroecosystem is affected by Ceroplastes cirripediformis, which causes severe damage and substantial economic losses. To know its potential for damage and importance, the different degrees of infestation and the spatial distribution of C. cirripediformis in the passion fruit agroecosystem was investigated. For this, a damage scale was established, and a spatial grid was drawn up on the crop, selecting 36 points in which monthly samplings were carried out for six months. At each point, the degree of severity of the scale and the meteorological variables were evaluated. With this information, the dispersion indices, variance/mean, Morisita index, and exp. K of the negative binomial. Likewise, a correlation analysis (Pearson's r) was performed between the abiotic factors and the evaluated indices. The results indicate that the degrees of severity of C. cirripediformis established were: grade 1 (<40 individuals), grade 2 (41-80 individuals), grade 3 (> 81 individuals). According to the correlation analysis, the temperature and precipitation factors have a notable impact on the populations of the coccyx and its distribution. The dispersion indices found in the populations in the passion fruit cultivation were achieved in aggregate, so it is essential to focus management strategies towards specific points.

Palavras-chave : Barnacle scale; Coccidae; Damage scale; Passiflora; Severity.

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