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Pesquisa Agropecuária Brasileira
Article . 2004
Data sources: DOAJ
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Pachycondyla obscuricornis as natural enemy of the spittlebug Deois flavopicta Pachycondyla obscuricornis como inimigo natural da cigarrinha-das-pastagens Deois flavopicta

Authors: Edison Ryoiti Sujii; Maria Alice Garcia; Eliana Maria Gouveia Fontes; Robert James O'Neil;

Pachycondyla obscuricornis as natural enemy of the spittlebug Deois flavopicta Pachycondyla obscuricornis como inimigo natural da cigarrinha-das-pastagens Deois flavopicta

Abstract

The objective of this work was to evaluate the potential control of the ant Pachycondyla obscuricornis Emery (Hymenoptera Formicidae) on populations of nymphs of the spittlebug, Deois flavopicta Stal (Hemiptera Cercopidae). Foraging behavior and prey consumption rate of P. obscuricornis were evaluated. Field data revealed that P. obscuricornis does not show aggressive behavior against individuals of the same species, when they are not carrying a prey; they can patrol distances larger than 10 m searching for prey, and they can build their nest as close as 1 m from each other. The ant has a solitary patrolling habit, there is no recruitment behavior, and individuals dislocate fast, browsing on soil and vegetation for prey. Predation rate on spittlebug nymphs increased relative to the spittlebug abundance, reaching 93.8% of captured prey. Pachycondyla obscuricornis is a voracious predator and may control the population of spittlebugs in cultivated pastures.O objetivo deste trabalho foi avaliar se a formiga Pachycondyla obscuricornis Emery (Hymenoptera Formicidae) pode atuar no controle biológico de populações de ninfas da cigarrinha-das-pastagens, Deois flavopicta Stal (Hemiptera Cercopidae). Foram estudados o comportamento de caça da formiga e sua taxa de consumo da presa. Pachycondyla obscuricornis não apresenta comportamento agressivo em relação a indivíduos da mesma espécie, quando estes não carregam presas; pode deslocar-se por distâncias superiores a 10 m em busca de presas e pode nidificar a até 1 m de ninhos da mesma espécie. A formiga apresentou hábito de caça solitário, ausência de recrutamento, e deslocamento rápido pela vegetação. A taxa de predação aumentou com a abundância da cigarrinha, chegando a representar 93,8% das presas capturadas. Pachycondyla obscuricornis é predadora voraz e representa potencial agente de controle de populações da cigarrinha-das-pastagens em pastagens cultivadas.

Keywords

Insecta, Agriculture (General), biological control, foraging behavior, predação, comportamento de forrageamento, predation, controle biológico, S1-972

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold