Landscapes, orchards, pesticides–Abundance of beetles (Coleoptera) in apple orchards along pesticide toxicity and landscape complexity gradients

Viktor Markó, Z. Elek, Anikó Kovács-Hostyánszki, Ádám Kőrösi, László Somay, Rita Földesi, Ákos Varga, Ágnes Iván, A. Báldi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Landscape composition may influence biodiversity and ecosystem services in agricultural fields. Hitherto, most studies have focused on annual crops and the available information on the impacts of landscape structure in orchards is sparse. In this study, we evaluated the effects of pesticide use as cumulative toxicity on pest and predatory beetle (Coleoptera) assemblages in the canopy of apple orchards surrounded by different proportion of semi-natural vegetation, crop fields and settlements in Hungary. Laboratory data suggest that increasing pesticide toxicity negatively affects predators (coccinellids), but we did not find such a pattern. Supposedly, the effect of pesticides was masked by the continuous recolonisation of orchards from the surrounding landscape. On the contrary, for the less mobile pest species [Anthonomus pomorum, Phyllobius oblongus (Curculionidae)] we did find a decline in abundance along the gradient of increasing pesticide toxicity. Landscape composition around the orchards significantly influenced the abundance of predatory, fungivorous and tourist species, but had no effect on pests. Contrary to expectations, however, semi-natural habitats had a minor effect compared to arable fields, orchards and settlements which habitat types had various effects on the abundance of different coleopteran groups and species. For example, Harmonia axyridis (Coccinellidae) abundance was positively affected by its overwintering sites, i.e. human settlements in spring, semi-natural forests in summer, and arable fields in autumn. The mass immigration of other predatory, fungivorous and tourist species from the surrounding arable fields into the orchards started from July with senescence and harvesting of arable crops. These results suggest that arable fields, other orchards and settlements might be more important sources of colonisation for natural enemies in orchards than certain semi-natural habitats.

Original languageEnglish
Pages (from-to)246-254
Number of pages9
JournalAgriculture, Ecosystems and Environment
Volume247
DOIs
Publication statusPublished - Sep 1 2017

Fingerprint

orchard
beetle
orchards
pesticides
apples
pesticide
Coleoptera
toxicity
tourists
pests
crop
Phyllobius
Anthonomus pomorum
habitats
Harmonia axyridis
pest species
human settlements
landscape structure
human settlement
overwintering

Keywords

  • Coleoptera
  • Dispersal
  • Ecosystem service
  • Land-use systems
  • Perennial crops
  • Pest control

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology
  • Agronomy and Crop Science

Cite this

Landscapes, orchards, pesticides–Abundance of beetles (Coleoptera) in apple orchards along pesticide toxicity and landscape complexity gradients. / Markó, Viktor; Elek, Z.; Kovács-Hostyánszki, Anikó; Kőrösi, Ádám; Somay, László; Földesi, Rita; Varga, Ákos; Iván, Ágnes; Báldi, A.

In: Agriculture, Ecosystems and Environment, Vol. 247, 01.09.2017, p. 246-254.

Research output: Contribution to journalArticle

Markó, Viktor ; Elek, Z. ; Kovács-Hostyánszki, Anikó ; Kőrösi, Ádám ; Somay, László ; Földesi, Rita ; Varga, Ákos ; Iván, Ágnes ; Báldi, A. / Landscapes, orchards, pesticides–Abundance of beetles (Coleoptera) in apple orchards along pesticide toxicity and landscape complexity gradients. In: Agriculture, Ecosystems and Environment. 2017 ; Vol. 247. pp. 246-254.
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