Combined effects of host-plant resistance and intraguild predation on the soybean aphid parasitoid Binodoxys communis in the field

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Soybean varieties that exhibit resistance to the soybean aphid Aphis glycines have been developed for use in North America. In principle, host-plant resistance to soybean aphid can influence the interactions between the soybean aphid and its natural enemies. Resistance could change the quality of soybean aphids as a food source, the availability of soybean aphids, or resistance traits could directly affect aphid predators and parasitoids. Here, we focus on the effect of soybean aphid resistance on the interactions between soybean aphids, the parasitoid Binodoxys communis (Hymenoptera: Braconidae), and predators of these two species. We determined whether host-plant resistance affected within-season persistence of B. communis by releasing parasitoids into resistant and susceptible soybean plots. We observed higher B. communis densities in susceptible soybean plots than in resistant plots. There were also higher overall levels of intraguild predation of B. communis in susceptible plots, although the per-capita risk of intraguild predation of B. communis was affected neither by plant genotype nor by aphid density. We discuss these effects and whether they were caused by direct effects of the resistant plants on B. communis or indirect effects through soybean aphid or predators.

Original languageEnglish (US)
Pages (from-to)16-25
Number of pages10
JournalBiological Control
Volume60
Issue number1
DOIs
StatePublished - Jan 1 2012

Fingerprint

Binodoxys
Aphis glycines
host plants
predation
soybeans
predators
parasitoids
Aphidoidea
Braconidae
natural enemies
Hymenoptera

Keywords

  • Aphis glycines
  • Binodoxys communis
  • Biological control
  • Host-plant resistance
  • Intraguild predation
  • Parasitoid

Cite this

@article{fac1ef9239b7401ba8db533ba5ea91d3,
title = "Combined effects of host-plant resistance and intraguild predation on the soybean aphid parasitoid Binodoxys communis in the field",
abstract = "Soybean varieties that exhibit resistance to the soybean aphid Aphis glycines have been developed for use in North America. In principle, host-plant resistance to soybean aphid can influence the interactions between the soybean aphid and its natural enemies. Resistance could change the quality of soybean aphids as a food source, the availability of soybean aphids, or resistance traits could directly affect aphid predators and parasitoids. Here, we focus on the effect of soybean aphid resistance on the interactions between soybean aphids, the parasitoid Binodoxys communis (Hymenoptera: Braconidae), and predators of these two species. We determined whether host-plant resistance affected within-season persistence of B. communis by releasing parasitoids into resistant and susceptible soybean plots. We observed higher B. communis densities in susceptible soybean plots than in resistant plots. There were also higher overall levels of intraguild predation of B. communis in susceptible plots, although the per-capita risk of intraguild predation of B. communis was affected neither by plant genotype nor by aphid density. We discuss these effects and whether they were caused by direct effects of the resistant plants on B. communis or indirect effects through soybean aphid or predators.",
keywords = "Aphis glycines, Binodoxys communis, Biological control, Host-plant resistance, Intraguild predation, Parasitoid",
author = "Chacon, {Jeremy M} and Asplen, {Mark K.} and Heimpel, {George E}",
year = "2012",
month = "1",
day = "1",
doi = "10.1016/j.biocontrol.2011.09.003",
language = "English (US)",
volume = "60",
pages = "16--25",
journal = "Biological Control",
issn = "1049-9644",
publisher = "Academic Press Inc.",
number = "1",

}

TY - JOUR

T1 - Combined effects of host-plant resistance and intraguild predation on the soybean aphid parasitoid Binodoxys communis in the field

AU - Chacon, Jeremy M

AU - Asplen, Mark K.

AU - Heimpel, George E

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Soybean varieties that exhibit resistance to the soybean aphid Aphis glycines have been developed for use in North America. In principle, host-plant resistance to soybean aphid can influence the interactions between the soybean aphid and its natural enemies. Resistance could change the quality of soybean aphids as a food source, the availability of soybean aphids, or resistance traits could directly affect aphid predators and parasitoids. Here, we focus on the effect of soybean aphid resistance on the interactions between soybean aphids, the parasitoid Binodoxys communis (Hymenoptera: Braconidae), and predators of these two species. We determined whether host-plant resistance affected within-season persistence of B. communis by releasing parasitoids into resistant and susceptible soybean plots. We observed higher B. communis densities in susceptible soybean plots than in resistant plots. There were also higher overall levels of intraguild predation of B. communis in susceptible plots, although the per-capita risk of intraguild predation of B. communis was affected neither by plant genotype nor by aphid density. We discuss these effects and whether they were caused by direct effects of the resistant plants on B. communis or indirect effects through soybean aphid or predators.

AB - Soybean varieties that exhibit resistance to the soybean aphid Aphis glycines have been developed for use in North America. In principle, host-plant resistance to soybean aphid can influence the interactions between the soybean aphid and its natural enemies. Resistance could change the quality of soybean aphids as a food source, the availability of soybean aphids, or resistance traits could directly affect aphid predators and parasitoids. Here, we focus on the effect of soybean aphid resistance on the interactions between soybean aphids, the parasitoid Binodoxys communis (Hymenoptera: Braconidae), and predators of these two species. We determined whether host-plant resistance affected within-season persistence of B. communis by releasing parasitoids into resistant and susceptible soybean plots. We observed higher B. communis densities in susceptible soybean plots than in resistant plots. There were also higher overall levels of intraguild predation of B. communis in susceptible plots, although the per-capita risk of intraguild predation of B. communis was affected neither by plant genotype nor by aphid density. We discuss these effects and whether they were caused by direct effects of the resistant plants on B. communis or indirect effects through soybean aphid or predators.

KW - Aphis glycines

KW - Binodoxys communis

KW - Biological control

KW - Host-plant resistance

KW - Intraguild predation

KW - Parasitoid

UR - http://www.scopus.com/inward/record.url?scp=82255175664&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=82255175664&partnerID=8YFLogxK

U2 - 10.1016/j.biocontrol.2011.09.003

DO - 10.1016/j.biocontrol.2011.09.003

M3 - Article

AN - SCOPUS:82255175664

VL - 60

SP - 16

EP - 25

JO - Biological Control

JF - Biological Control

SN - 1049-9644

IS - 1

ER -