Abundance of natural enemies of wheat aphids at different distances from the edge of the forest

Authors

  • Orcial Ceolin Bortolotto Universidade Estadual de Londrina, Departamento de Agronomia, Rodovia Celso Garcia Cid, PR 445, Km 380, s/no, CEP 86051‑990 Londrina, PR, Brasil.
  • Ayres de Oliveira Menezes Jr Universidade Estadual de Londrina, Departamento de Agronomia, Rodovia Celso Garcia Cid, PR 445, Km 380, s/no, CEP 86051‑990 Londrina, PR, Brasil.
  • Adriano Thibes Hoshino Universidade Estadual de Londrina, Departamento de Agronomia, Rodovia Celso Garcia Cid, PR 445, Km 380, s/no, CEP 86051‑990 Londrina, PR, Brasil.

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.22306

Keywords:

Lysiphlebus testaceipes, Triticum aestivum, biological control, wheat pests, environmental conservation

Abstract

The objective of this work was to assess the abundance of natural enemies of wheat (Triticum aestivum) aphids at different distances from the edge of the forest (2.0 to 200 m), in the municipalities of Londrina and Ibiporã, in the state of Paraná, Brazil, in the 2008 crop season. A total of 11,316 aphids,682 mummies, 487 parasitoids, and 20,366 predators were quantified. The effect of the distance from the edge of the forest on aphids and parasitoids was not consistent. Among predators, the Dolichopodidae family was the most abundant (87.74 and 98.55% in Ibiporã and Londrina, respectively) and showed a higher population near the edge of the forest, indicating that this refuge area favors that predator.

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Published

2016-03-30

How to Cite

Bortolotto, O. C., Menezes Jr, A. de O., & Hoshino, A. T. (2016). Abundance of natural enemies of wheat aphids at different distances from the edge of the forest. Pesquisa Agropecuaria Brasileira, 51(2), 187–191. https://doi.org/10.1590/S1678-3921.pab2016.v51.22306

Issue

v.51, n.2, fev. 2016

Section

SCIENTIFIC NOTES