Spatial patterns of Aphis gossypii (Sternorrhyncha: Aphididae) populations feeding on milkweed ( Asclepias syriaca )

Nóra Molnár; Anikó Harkai; Regina Setényi

doi:10.1556/aphyt.45.2010.1.4

Acta Phytopathologica et Entomologica Hungarica

Volume/Issue:: Volume 45: Issue 1

Spatial patterns of Aphis gossypii (Sternorrhyncha: Aphididae) populations feeding on milkweed ( Asclepias syriaca )

Authors:

Nóra Molnár

Nóra Molnár University of Szeged Department of Ecology H-6726 Szeged Középfasor 52 Hungary

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Anikó Harkai

Anikó Harkai Acheuron Hungary Ltd. H-6726 Szeged Tiszavirág u. 11 Hungary

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, and

Regina Setényi

Regina Setényi University of Szeged Department of Ecology H-6726 Szeged Középfasor 52 Hungary

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Pages:: 71–80

Online Publication Date:: 10 Jun 2010

Publication Date:: 01 Jun 2010

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/aphyt.45.2010.1.4

Keywords:: aphid population ecology; habitat preference; aphid-ant mutualism

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Aphid populations feeding on common milkweed ( Asclepias syriaca L.) were investigated in seven different sand associations in Hungary during the spring of three years: 2005, 2007 and 2008. In each year the populations of Aphis gossypii colonized on the host plant. The experimental fields were selected on the following habitats: an orchard, a locust forest, a semi-natural grassland, an open sand grassland, a plough-land, poplar- and pine-grove clearings. In each year we surveyed the parameters of plant individuals and infestation of plants by aphids. The number of plants did not differ significantly, but the number of aphids showed a considerable difference. The colonies preferred the peak of shoots, the upper levels of plants and adaxial leaf surfaces. The host plant preference of aphids was tested by Spearman’s rank correlation and a Mann-Whitney test. In 2008 there was a heavy infestation on the apical parts of milkweed shoots on the plough-land, therefore many aphids moved to the abaxial leaf surfaces. The apterous forms usually dominated the aphid colonies except two areas of the 2008 year, where the high density of aphids generated alate production. Aphid colonies were attended by different ant species, therefore the aphid-ant mutualism was investigated in each sites.

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Acta Phytopathologica et Entomologica Hungarica

Print ISSN:: 0238-1249

Online ISSN:: 1588-2691

Editor-in-Chief

Jenő KONTSCHÁN Centre for Agricultural Research, Hungary

Technical Editor

Ágnes TURÓCI Centre for Agricultural Research, Hungary

Section Editor

K SALÁNKI Centre for Agricultural Research, Hungary

Editorial Board

Z BOZSÓ Centre for Agricultural Research, Hungary

PE CHETVERIKOV Saint-Petersburg State University, Russia

JX CUI Henan Institute of Science and Technology, China

J FODOR Centre for Agricultural Research, Hungary

Z IMREI Centre for Agricultural Research, Hungary

BM KAYDAN Çukurova University, Turkey

L KISS University of Southern Queensland, Australia

V MARKÓ Hungarian University of Agriculture and Life Sciences, Hungary

MW NEGM Ibaraki University, Japan

L PALKOVICS Széchenyi István University, Hungary

M POGÁNY Centre for Agricultural Research, Hungary

D RÉDEI National Chung Hsing University, Taiwan

A TOLSTIKOV University of Tyumen, Russia

J VUTS Rothamsted Research, UK

GQ WANG Guangxi University, China

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Acta Phytopathologica et Entomologica Hungarica
Language	English
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