First report of Syrphophagus aphidivorus (Hymenoptera: Encyrtidae) on Aphidius ervi in alfalfa crops in State of São Paulo, Brazil

Iemma, L. G. R.; Tavares, Marcelo Teixeira; Sousa-Silva, Carlos Roberto

doi:10.1590/1519-6984.00516

Cited by 2 publications

(3 citation statements)

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“…This is the first record of the species for Ecuador. Iemma et al (2017) reported that S. aphidivorus is a secondary endoparasitoid of other hymenopteran parasitoids, in which hyperparasitoid females have two oviposition strategies: ovipositing in live parasitized aphids, as well as in mummified aphids. Both strategies aim to attack the larvae of primary parasitoids (Iemma et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…Iemma et al (2017) reported that S. aphidivorus is a secondary endoparasitoid of other hymenopteran parasitoids, in which hyperparasitoid females have two oviposition strategies: ovipositing in live parasitized aphids, as well as in mummified aphids. Both strategies aim to attack the larvae of primary parasitoids (Iemma et al, 2017). The species L. testaceipes and S. aphidivorus have been found in other field studies in different geographical The species of predatory coccinellids and syrphids found in this study had been previously reported for Ecuador.…”

Section: Resultsmentioning

confidence: 99%

“…From a high percentage (38.2%) of the reared aphid mummies, the hyperparasitoid S. aphidivorus emerged, which translates to an adult emerging from each mummy. This is the first record of the species for Ecuador Iemma et al (2017). reported that S. aphidivorus is a secondary endoparasitoid of other hymenopteran parasitoids, in which hyperparasitoid females have two oviposition strategies: ovipositing in live parasitized aphids, as well as in mummified aphids.…”

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Trophic networks associated with the aphid, Rhopalosiphum maidis (Fitch) (Hemiptera: Aphididae) in a cornfield, Manabí, Ecuador

Centeno-Parrales

Chirinos²,

Kondo³

2022

Sci. agropecu.

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The corn leaf aphid is considered an important pest associated with maize. This study aimed to discover the trophic associations around Rhopalosiphum maidis in Manabí, Ecuador. Maize leaves were sampled to determine the numbers of parasitized aphids, and the identities of predators and parasitoids. Nine taxa of natural enemies were detected: the primary parasitoid was Lysiphlebus testaceipes Cresson, 1880 (Hymenoptera: Braconidae); the hyperparasitoid Syrphophagus aphidivorus (Mayr, 1876) (Hymenoptera: Encyrtidae); the predatory hoverfly Ocyptamus dimidiatus (Fabricius, 1781) (Diptera: Syrphidae), four species of coccinellids, Cheilomenes sexmaculata (Fabricius, 1781), Cycloneda sanguinea (Linnaeus, 1763), Hippodamia convergens Guerin-Meneville, 1842 and Paraneda pallidula guticollis (Coleoptera: Coccinellidae) and an assassin bug, Zelus sp. (Hemiptera: Reduviidae). A parasitoid, Pachyneuron formosum Walker, 1833 (Hymenoptera: Pteromalidae) emerged from hoverfly pupae. This study reports the presence of the parasitoids S. aphidivorus and P. formosum in Ecuador for the first time. These results increase the knowledge of a four-trophic level relationship (host plant – pest – parasitoids, predators – hyperparasitoids) in a maize agroecosystem as a fundamental basis for biological control programs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 87%

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