Predators Suppress Aphis glycines Matsumura Population Growth in Soybean

By T. Fox, D. Landis, F. Cardoso, C. Difonzo. 2004

176 citations recorded by the source corpus.

Abstract The soybean aphid, Aphis glycines Matsumura, is an invasive pest of soybean, first discovered in North America in 2000. We studied the ability of the existing predator community in soybean to suppress A. glycines population growth during June–August 2002, in field studies using predator exclusion and sham cages or no-cage controls. Cages were infested with uniform initial densities of A. glycines adults, and subsequent populations of aphids and predators were monitored. After 2 wk, exclusion and sham cages were switched, with aphid and predator density followed for additional 2 wk. The experiment was repeated a second time, allowing observation of predator community response to both low and high density aphid populations over several time periods and stages of soybean development. Cages had minimal effects on temperature, relative humidity, or soybean growth. In contrast, predator communities and aphid populations were strongly affected by cage treatments. In the first trial, the activity of foliar-foraging predators effectively prevented A. glycines population growth maintaining populations below 10 aphids per plant (adult + nymphs) in sham cages, while populations exceeded 200 aphids per plant in exclusion cages. After cage switch, these high A. glycines populations in the former exclusion cages were rapidly colonized and reduced by nearly an order of magnitude within 2 wk by a combination of generalist and specialist predators. The second trial produced qualitatively similar results, but at much lower aphid densities. The most abundant predators in both trials included: Harmonia axyridis Pallas, Orius insidiosus (Say), and Leucopis spp. These studies demonstrate that existing predator communities comprised of a mixture of indigenous and naturalized species can suppress A. glycines population density in soybean. The impact of existing predator communities should be further investigated as a component of A. glycines management in United States soybean production systems.

Subfields: Ecology, Evolution, Behavior and Systematics, Insect Science

View Paper: https://www.semanticscholar.org/paper/70261d0669c0c77dab7add8c7bec8c6cd2d536c0

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Citations in the corpus

Soybean Aphid Predators in Québec and the Suitability of Aphis glycines as Prey for Three Coccinellidae (2006, background): “In agreement with predator-prey models and empirical evidence (Zhang and Chen, 1991; Chang and Kareiva, 1999; Takagi, 1999; Elliott et al., 2000), some of these studies underline the determinant role Coccinellidae may play at low soybean aphid densities, when more effective specialized aphidophagous”
Impact of intraguild predation by adult Harmonia axyridis (Coleoptera: Coccinellidae) on Aphis glycines (Hemiptera: Aphididae) biological control in cage studies (2007, unknown): “It is possible that the conWned arena of a microcosm elevated the extent of IGP relative to what occurs in soybean Welds.”
Management Recommendations for Soybean Aphid (Hemiptera: Aphididae) in the United States (2012, background): “Declines in aphid populations are attributed to changes in host plant quality, natural enemies, weather extremes (van den Berg et al. 1997, Fox et al. 2004, Karley et al. 2004, Li et al. 2004) or, more realistically, a combination of all these factors.”
European buckthorn and Asian soybean aphid as components of an extensive invasional meltdown in North America (2010, background): “Previous studies report aggregation of Harmonia to high densities of soybean aphid (Fox et al. 2004; Donaldson et al. 2007), and Chacon and Heimpel (in press) have shown that predation on mummies by chewing predators such as Harmonia increases with soybean aphid density.”
Predation and cannibalism of lady beetle eggs by adult lady beetles (2005, background): “This polyphagous predator can be important as an aphid predator (Fox et al., 2004; Tedders and Schaefer, 1994) or potentially harmful through a variety of ways (Koch, 2003; Koch et al.”
Bad side of a good beetle: the North American experience with Harmonia axyridis (2008, background): “For example, this predator appears to be an important natural enemy of Aphis glycines Matsumura, an invasive soybean pest in North America (Fox et al. 2004; Rutledge et al. 2004; Fox et al. 2005; Costamanga and Landis 2006; Mignault et al. 2006).”
Control of Invasive Soybean Aphid, Aphis glycines (Hemiptera: Aphididae), Populations by Existing Natural Enemies in New York State, with Emphasis on Entomopathogenic Fungi (2005, background): “2003 Michigan state report to NCR-125.”
The role of natural enemy guilds in Aphis glycines suppression (2008, background): “by Fox et al. (2004) and Costamagna and Landis (2006).”
Aphidophagous Predators in Iowa Soybean: A Community Comparison across Multiple Years and Sampling Methods (2008, background): “Unlike other aphidÐnatural enemy systems (Snyder and Ives 2003), currently there is little evidence that parasitoids play a role in regulating A. glycines populations (Landis et al. 2000; Fox et al. 2004, 2005).”
The role of exotic ladybeetles in the decline of native ladybeetle populations: evidence from long-term monitoring (2015, background): “axyridis (Bahlai and Sears 2009; Costamagna and Landis 2006; Fox et al. 2004; Heimpel et al. 2010).”
Influence of Potassium Fertility on Soybean Aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), Population Dynamics at a Field and Regional Scale (2006, background): “While natural enemies have been shown to reduce soybean aphid densities (Ellingson 2004, Fox et al. 2004 ), it has also been speculated that spring temperature, rainfall patterns, and timing of soybean colonization by alate aphids all contribute to overall aphid abundance (Ragsdale et al. 2004).”
Coccinellids in Biological Control (2012, unknown): “Once established in the states of Yucatan response to the large populations of Aphis glycines that developed in soybean fi elds in the years following the aphid ’ s invasion, and where the beetle continues to be important for biological control (Fox et al. 2004 ).”