African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6154

Full Length Research Paper

Correlation of climatic elements with phases of the lace bug Vatiga illudens (Hemiptera: Tingidae) in two cassava cultivars (Manihot esculenta Crantz, Euphorbiaceae)

Joice Kessia Barbosa dos Santos
  • Joice Kessia Barbosa dos Santos
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Tamara Taís dos Santos
  • Tamara Taís dos Santos
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Aleyres Bispo Chagas
  • Aleyres Bispo Chagas
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Eliane dos Santos
  • Eliane dos Santos
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Diego Jorge da Silva
  • Diego Jorge da Silva
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Alverlan da Silva Araujo
  • Alverlan da Silva Araujo
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Rodrigo Almeida Pinheiro
  • Rodrigo Almeida Pinheiro
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Joao Pedro Ferreira Barbosa
  • Joao Pedro Ferreira Barbosa
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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Jhonatan David Santos das Neves
  • Jhonatan David Santos das Neves
  • Regional Faculty of Bahia - UNIRB, Brazil.
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Ana Paula Gonçalves da Silva Wengrat3
  • Ana Paula Gonçalves da Silva Wengrat3
  • Department of Entomology, Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ/USP), Brazil.
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Rubens Pessoa de Barros
  • Rubens Pessoa de Barros
  • Department of Biological Sciences, Faculty of Science, State University of Alagoas, Brazil.
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  •  Received: 30 November 2018
  •  Accepted: 07 February 2019
  •  Published: 07 March 2019

Abstract

Cassava (Manihot esculenta Crantz) is subject to various disease problems and insect attacks. The aim of this study was to evaluate the correlations of climatic elements on the phases of the lacebug, Vatiga illudens in two cultivars of cassava. The study was carried out in a greenhouse using the ‘Sergipana’ and ‘Campina’ cultivars. Data were analyzed using the Pearson index for linear correlations. Comparisons between the cultivars and the insect population were performed using boxplot tests, with 95% confidence intervals. Data were subjected to analysis of variance and were compared using the Tukey test at 5% probability. In cassava phenological stages, height and number of branches were different between the cultivars of. The greatest number of individual lace bugs was found in the ‘Campina’ cultivar, with an increase in the population during August. Nymphs and adults of V. illudens populations varied monthly in ‘Sergipana’ cultivar with a peak in June and August. There was a significant correlation between the phenological stages of the cassava cultivars and the climatic elements on lace bug population fluctuations in a greenhouse.

Key words: Abiotic factors, lacebug, Manihot esculenta, plant production.