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Interspecific Associations between Cycloneda sanguinea and Two Aphid Species (Aphis gossypii and Hyadaphis foeniculi) in Sole-Crop and Fennel-Cotton Intercropping Systems.

Fernandes FS, Ramalho FS, Malaquias JB, Godoy WA, Santos BD - PLoS ONE (2015)

Bottom Line: 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.Significant associations among both apterous and alate H. foeniculi and C. sanguinea were observed in both the fennel and fennel-cotton intercropping systems.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.

View Article: PubMed Central - PubMed

Affiliation: Unidade de Controle Biológico, Embrapa Algodão, Campina Grande, Paraiba, Brazil; Universidade de São Paulo (USP), Escola Superior de Agricultura "Luiz of Queiroz", ESALQ, Departamento de Entomologia, Piracicaba, São Paulo, Brazil.

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.

No MeSH data available.


Related in: MedlinePlus

Co-occurrence of A. gossypii and C. sanguinea studied in sole cotton and intercropped fennel-cotton.
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pone.0131449.g002: Co-occurrence of A. gossypii and C. sanguinea studied in sole cotton and intercropped fennel-cotton.

Mentions: Observing the dendrogram from right to left and inserting a cut near 0.28, we see two well-defined groups containing one (A. gossypii apterous from sole cotton + A. gossypii apterous from cotton intercropping system) and three subgroups within the cluster by Ward quadratic sums (Fig 2). These sums indicate how many times apterous and alate A. gossypii spatially co-occurred with C. sanguinea, whether at the same time or not, in the sole cotton and fennel-cotton intercropping systems.


Interspecific Associations between Cycloneda sanguinea and Two Aphid Species (Aphis gossypii and Hyadaphis foeniculi) in Sole-Crop and Fennel-Cotton Intercropping Systems.

Fernandes FS, Ramalho FS, Malaquias JB, Godoy WA, Santos BD - PLoS ONE (2015)

Co-occurrence of A. gossypii and C. sanguinea studied in sole cotton and intercropped fennel-cotton.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4524726&req=5

pone.0131449.g002: Co-occurrence of A. gossypii and C. sanguinea studied in sole cotton and intercropped fennel-cotton.
Mentions: Observing the dendrogram from right to left and inserting a cut near 0.28, we see two well-defined groups containing one (A. gossypii apterous from sole cotton + A. gossypii apterous from cotton intercropping system) and three subgroups within the cluster by Ward quadratic sums (Fig 2). These sums indicate how many times apterous and alate A. gossypii spatially co-occurred with C. sanguinea, whether at the same time or not, in the sole cotton and fennel-cotton intercropping systems.

Bottom Line: 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.Significant associations among both apterous and alate H. foeniculi and C. sanguinea were observed in both the fennel and fennel-cotton intercropping systems.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.

View Article: PubMed Central - PubMed

Affiliation: Unidade de Controle Biológico, Embrapa Algodão, Campina Grande, Paraiba, Brazil; Universidade de São Paulo (USP), Escola Superior de Agricultura "Luiz of Queiroz", ESALQ, Departamento de Entomologia, Piracicaba, São Paulo, Brazil.

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.

No MeSH data available.


Related in: MedlinePlus