PLoS ONE (2015) 10 (8 - e0131449)

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Francisco S. Fernandes, Francisco S. Ramalho, José B. Malaquias, Wesley A.C. Godoy and Bárbara Davis B. Santos (2015)
Interspecific associations between Cycloneda sanguinea and two aphid species (Aphis gossypii and Hyadaphis foeniculi) in sole-crop and fennel-cotton intercropping systems
PLoS ONE 10 (8 - e0131449)
Abstract: Aphids cause significant damage to crop plants. Studies regarding predator-prey relationships in fennel (Foeniculum vulgare Mill.) and cotton (Gossypium hirsutum L.) crops are important for understanding essential ecological interactions in the context of intercropping and for establishing pest management programs for aphids. This study evaluated the association among Hyadaphis foeniculi (Passerini) (Hemiptera: Aphididae), Aphis gossypii Glover (Hemiptera: Aphididae) and Cycloneda sanguinea (L.) (Coleoptera: Coccinellidae) in cotton with coloured fibres, fennel and cotton intercropped with fennel. Association analysis was used to investigate whether the presence or absence of prey and predator species can indicate possible interactions between aphids and ladybugs. Significant associations among both apterous and alate H. foeniculi and C. sanguinea were observed in both the fennel and fennel-cotton intercropping systems. The similarity analysis showed that the presence of aphids and ladybugs in the same system is significantly dependent on the type of crop. A substantial amount of evidence indicates that the presence of the ladybug C. sanguinea, is associated with apterous or alate A. gossypii and H. foeniculi in fennel-cotton intercropping system. We recommend that future research vising integrated aphid management taking into account these associations for take decisions.
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Full text of article
Database assignments for author(s): Francisco de Sousa Ramalho

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Aphis gossypii Cotton (Gossypium) Brazil (NE)
Hyadaphis foeniculi Fennel (Foeniculum vulgare) Brazil (NE)
Cycloneda sanguinea (predator) Aphis gossypii Cotton (Gossypium) Brazil (NE)
Cycloneda sanguinea (predator) Hyadaphis foeniculi Fennel (Foeniculum vulgare) Brazil (NE)
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