Comparative susceptibility to hyperparasitism of Binodoxys communis and Aphidius colemani, primary aphid parasitoids introduced to Hawaii

Acebes, Angelita L; Messing, Russell H.

doi:10.1016/j.biocontrol.2012.09.003

Cited by 11 publications

(4 citation statements)

References 44 publications

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“…The efficiency of A. colemani can be affected by both biotic and abiotic factors, with hyperparasitism an important biotic factor since it affects the abundance of the primary parasitoids as well as modifying their behavior [36]. Some of the reported behavioral changes include abandonment of the patches by the primary parasitoid females in the presence of hyperparasitoids, regardless of aphid density, in order to minimize the mortality rate of their progeny [43,44]. This means at a high hyperparasitoid density, there is more dispersal of the primary parasitoids from the patches without complete exploitation of the aphids.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Hymenopteran Parasitoids of Aphis fabae in An African Smallholder Bean Farming System Through Sequencing of COI ‘Mini-barcodes’

Mkenda

Ndakidemi

Stevenson

et al. 2019

Insects

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Parasitoids are among the most frequently reported natural enemies of insect pests, particularly aphids. The efficacy of parasitoids as biocontrol agents is influenced by biotic and abiotic factors. For example, hyperparasitoids can reduce the abundance of the primary parasitoids as well as modify their behavior. A field study was conducted at three contrasting elevations on Mount Kilimanjaro, Tanzania, to identify the parasitoids of aphids in smallholder bean farming agroecosystems. Sentinel aphids (Aphis fabae) on potted bean plants (Phaseolus vulgaris) were exposed in 15 bean fields at three elevations for 2 days. The sentinel aphids were then kept in cages in a greenhouse until emergence of the parasitoids, which were collected and preserved in 98% ethanol for identification. Of the 214 parasitoids that emerged from sentinel aphids, the greatest abundance (44.86%) were from those placed at intermediate elevations (1000–1500 m a.s.l), compared to 42.52% from the lowest elevations and only 12.62% from the highest elevation farms. Morphological identification of the parasitoids that emerged from parasitized aphids showed that 90% were Aphidius species (Hymenoptera: Braconidae: Aphidiinae). Further characterization by sequencing DNA ‘mini-barcodes’ identified parasitoids with ≥99% sequence similarity to Aphidius colemani, 94–95% sequence similarity to Pachyneuron aphidis and 90% similarity to a Charipinae sp. in the National Center for Biotechnology Information (NCBI) database. These results confidently identified A. colemani as the dominant primary aphid parasitoid of A. fabae in the study area. A Pachyneuron sp., which was most closely related to P. aphidis, and a Charipinae sp. occurred as hyperparasitoids. Thus, interventions to improve landscapes and farming practice should monitor specifically how to augment populations of A. colemani, to ensure any changes enhance the delivery of natural pest regulation. Further studies are needed for continuous monitoring of the hyperparasitism levels and the dynamics of aphids, primary parasitoids, and secondary parasitoids in different cropping seasons and their implications in aphid control.

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Section: Discussionmentioning

confidence: 99%

Characterization of Hymenopteran Parasitoids of Aphis fabae in An African Smallholder Bean Farming System Through Sequencing of COI ‘Mini-barcodes’

Mkenda

Ndakidemi

Stevenson

et al. 2019

Insects

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“…Con respecto al hiperparasitoidismo, estudios de Walgenbach (1994), Acebes and Messing (2013), Prado et al (2015) y Sampaio et al (2017) determinaron que los hiperparasitoides limitaron la eficiencia de los parasitoides primarios (entre los que se cuenta la especie A. colemani) en el control biológico de M. persicae y otros áfidos por su elevado porcentaje. En el presente trabajo pudimos observar que el desempeño de los parasitoides primarios probablemente se vio afectado principalmente en el mes de noviembre, época de emergencia común de parasitoides primarios y secundarios.…”

Section: Discussionunclassified

Diversidad de parasitoides primarios y secundarios del pulgón Myzus persicae (Hemiptera, Aphididae) en el duraznero Prunus persica (Rosales, Rosaceae) en la provincia de Mendoza, Argentina

Mazzitelli¹,

Aquino²,

Gallardo³

et al. 2018

Arx. Misc. Zool.

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“…This parasitoid species is native to Asia and has been introduced into the Midwestern USA as a biological control agent against the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) (Ragsdale et al. ) and into Hawaii as a biological control agent of the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) (Acebes and Messing ,b). B. communis is a synovigenic parasitoid that does not engage in host feeding and is specialized on A. glycines and close relatives (Wyckhuys et al.…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of this study was to assess egg load and nutritional status in the aphid parasitoid Binodoxys communis under field conditions in order to estimate its risk of egg limitation and time limitation in the field. This parasitoid species is native to Asia and has been introduced into the Midwestern USA as a biological control agent against the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) (Ragsdale et al 2011 ) and into Hawaii as a biological control agent of the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) (Acebes and Messing 2013a ,b 2013b ). B. communis is a synovigenic parasitoid that does not engage in host feeding and is specialized on A. glycines and close relatives (Wyckhuys et al 2008a ; Desneux et al 2009a , 2012 ; Dieckhoff and Heimpel 2010 ; Acebes and Messing 2013a ).…”

Section: Introductionmentioning

confidence: 99%

Egg load dynamics and the risk of egg and time limitation experienced by an aphid parasitoid in the field

Dieckhoff

Theobald

Wäckers

et al. 2014

Ecology and Evolution

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Insect parasitoids and herbivores must balance the risk of egg limitation and time limitation in order to maximize reproductive success. Egg and time limitation are mediated by oviposition and egg maturation rates as well as by starvation risk and other determinants of adult lifespan. Here, we assessed egg load and nutritional state in the soybean aphid parasitoid Binodoxys communis under field conditions to estimate its risk of becoming either egg- or time-limited. The majority of female B. communis showed no signs of egg limitation. Experimental field manipulations of B. communis females suggested that an average of 4–8 eggs were matured per hour over the course of a day. Regardless, egg loads remained constant over the course of the day at approximately 80 eggs, suggesting that egg maturation compensates for oviposition. This is the first case of such “egg load buffering” documented for a parasitoid in the field. Despite this buffering, egg loads dropped slightly with increasing host (aphid) density. This suggests that egg limitation could occur at very high host densities as experienced in outbreak years in some locations in the Midwestern USA. Biochemical analyses of sugar profiles showed that parasitoids fed upon sugar in the field at a remarkably high rate. Time limitation through starvation thus seems to be very low and aphid honeydew is most likely a source of dietary sugar for these parasitoids. This latter supposition is supported by the fact that body sugar levels increase with host (aphid) density. Together, these results suggest that fecundity of B. communis benefits from both dynamic egg maturation strategies and sugar-feeding.

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Comparative susceptibility to hyperparasitism of Binodoxys communis and Aphidius colemani, primary aphid parasitoids introduced to Hawaii

Cited by 11 publications

References 44 publications

Characterization of Hymenopteran Parasitoids of Aphis fabae in An African Smallholder Bean Farming System Through Sequencing of COI ‘Mini-barcodes’

Characterization of Hymenopteran Parasitoids of Aphis fabae in An African Smallholder Bean Farming System Through Sequencing of COI ‘Mini-barcodes’

Diversidad de parasitoides primarios y secundarios del pulgón Myzus persicae (Hemiptera, Aphididae) en el duraznero Prunus persica (Rosales, Rosaceae) en la provincia de Mendoza, Argentina

Egg load dynamics and the risk of egg and time limitation experienced by an aphid parasitoid in the field

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