Population dynamic of guava psyllid Triozoida limbata (Hemiptera: Psyllidae) in Londrina Parana, Brazil

Authors

  • Fernanda Maura Sassiotti Dalberto Universidade Estadual de Londrina
  • Ayres de O. Menezes Junior Universidade Estadual de Londrina
  • Homero Christoval Simões Universidade Estadual de Londrina
  • Norton Polo Benito Universidade Estadual de Londrina
  • Juliana Pitwak Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0359.2004v25n2p87

Keywords:

Psidium guajava, Pests, Population dynamics, Climate.

Abstract

The Psyllidae are sap-suckers insects, highly host and food specific, found mainly in sprouts, and are considered important guava pests. Large populations of these insects can be hazardous, since they cause plant weakness by the toxic action of the saliva injected during their feeding process. The objective of this work was to verify the population fluctuation of the psyllidae Trizoida limbata in guava trees in Londrina, Paraná, Brazil. The monitoring of an adult T.limbata population was carried out in areas of wild guava trees, using 10 yellow adhesive traps, 30 m far from each other. Collection took place monthly from March 2002 to May 2003. T.limbata populations were found during every month of the year, reaching their peak in October. Average and maximum temperatures showed a significant correlation with the psyllidae population fluctuation, affecting it positively. Heavy rain periods and low temperatures were not restricting, but they caused a reduction in population

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Author Biographies

Fernanda Maura Sassiotti Dalberto, Universidade Estadual de Londrina

Mestranda em Agronomia, Universidade Estadual de Londrina-UEL, PR.

Ayres de O. Menezes Junior, Universidade Estadual de Londrina

Professor Dr. do Departamento de Agronomia, Universidade Estadual de Londrina (UEL), Caixa Postal 6001, CEP 86051-990, Londrina – PR.

Homero Christoval Simões, Universidade Estadual de Londrina

Mestre em Agronomia, Universidade Estadual de Londrina-UEL, PR.

Norton Polo Benito, Universidade Estadual de Londrina

Doutorando em Agronomia, Universidade Estadual de Londrina-UEL, PR.

Juliana Pitwak, Universidade Estadual de Londrina

Mestranda em Agronomia, Universidade Estadual de Londrina-UEL, PR.

Published

2004-05-19

How to Cite

Dalberto, F. M. S., Menezes Junior, A. de O., Simões, H. C., Benito, N. P., & Pitwak, J. (2004). Population dynamic of guava psyllid Triozoida limbata (Hemiptera: Psyllidae) in Londrina Parana, Brazil. Semina: Ciências Agrárias, 25(2), 87–92. https://doi.org/10.5433/1679-0359.2004v25n2p87

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