Title
Phenology and interspecific association of **Forficula auricularia** and **Forficula pubescens** in apple orchards Phenology and interspecific association of **Forficula auricularia** and **Forficula pubescens** in apple orchards
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Madrid ,
Subject
Biology
Source (journal)
Spanish journal of agricultural research. - Madrid
Volume/pages
13(2015) :1 , 12 p.
ISSN
1695-971X
1695-971X
Article Reference
e1003
Carrier
E-only publicatie
Target language
Dutch (dut)
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The European earwig Forficula auricularia L. (Dermaptera: Forficulidae) has been widely studied as a key predator of pests in temperate regions, but its phenology and behavior may differ in warmer areas such as the Mediterranean. Here we assessed the phenology, aggregation, and interspecific association of F. auricularia and Forficula pubescens Gené, the only two species found consistently in both ground and canopy shelters in Mediterranean apple orchards. In addition to F. auricularia and F. pubescens, three other earwig species, namely Labidura riparia Pallas, Nala lividipes Dufour and Euborellia moesta Gené, were found occasionally. The mature stages of F. auricularia were observed mainly from May to November in tree shelters and immature ones from October to June in ground shelters. Adult individuals of F. pubescens were observed year-round and nymph instars were detected from April to June in ground as well as in tree shelters. The suitability of the current degree-days models for temperate regions was evaluated for the prediction of European earwig phenology in a Mediterranean climate. Regarding interspecific association, F. auricularia and F. pubescens co-occurred in canopies without apparent competition. This study provides useful weekly data about the phenology of the two earwig species throughout the year that can be used to detect the key periods during which to enhance their populations in pip fruit orchards or to control them in stone fruit crops. Furthermore, our results are of relevance for the development of new phenological models of earwigs in Mediterranean areas where nymphs hibernate, a feature that makes current models inaccurate.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/137f0b/470ba4dd.pdf
E-info
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