Management Recommendations for Soybean Aphid (Hemiptera: Aphididae) in the United States

Hodgson, Erin W.; McCornack, Brian; Tilmon, Kelley J.; Knodel, Janet J.

doi:10.1603/ipm11019

Cited by 95 publications

(86 citation statements)

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“…Unfortunately, soybeans lack the powerful genetic and genomic resources that are available for other plant model systems such as Arabidopsis and tomato. There has been considerable focus on soybean aphid biology and management over the last decade (Hodgson et al 2012;Ragsdale et al 2011). In contrast, there is limited information available on the biology and control options for soybean thrips (Reisig et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Jasmonate-dependent plant defenses mediate soybean thrips and soybean aphid performance on soybean

Selig

Keough

Nalam

et al. 2016

Arthropod-Plant Interactions

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Insect herbivores from different feeding guilds induce different signaling pathways in plants. In this study, we examined the effects of salicylic acid (SA)-and jasmonic acid (JA)-mediated defenses on performance of insect herbivores from two different feeding guilds: cellcontent feeders, soybean thrips and phloem feeders, soybean aphids. We used a combination of RT-qPCR analysis and elicitor-induced plant resistance to determine induction of SA and JA signaling pathways and the impact on herbivore performance. In the early interaction between the host plant and the two herbivores, SA and JA signaling seems to occur simultaneously. But overall, soybean thrips induced JA-related marker genes, whereas soybean aphids increased SA and ABA-related marker genes over a 24-h period. Populations of both soybean thrips and soybean aphids were reduced (47 and 25 %, respectively) in methyl jasmonate (MeJA)-pretreated soybean plants. SA treatment has no effect on either herbivore performance. A combination pretreatment of SA and MeJA did not impact soybean thrips population but reduced soybean aphid numbers which was comparable with MeJA treatment. Our data suggest that SA-JA antagonism could be responsible for the effect of hormone pretreatment on thrips performance, but not on aphid performance. By linking plant defense gene expression and elicitor-induced resistance, we were able to pinpoint the role for JA signaling pathway in resistance to two herbivores from different feeding guilds.

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Section: Discussionmentioning

confidence: 99%

Jasmonate-dependent plant defenses mediate soybean thrips and soybean aphid performance on soybean

Selig

Keough

Nalam

et al. 2016

Arthropod-Plant Interactions

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“…Soybean fields should be scouted on a regular basis because soybean aphid populations can increase rapidly (Hodgson et al 2012;McCornack et al 2004;Ragsdale et al 2007), particularly when winged aphids migrate within and between fields (Costamagna et al 2013). Early-season (i.e., May through mid-July) scouting should focus on fields that have histories of early colonization by soybean aphids, particularly early-planted fields and fields near buckthorn, Rhamnus spp., the overwintering host of soybean aphid (Bahlai et al 2010).…”

Section: Biological and Economic Considerations In Soybean Aphid Manamentioning

confidence: 99%

“…While some newer insecticides target a narrower range of insects (Knodel et al 2016;Tran et al 2016;Varenhorst and O'Neal 2012), most insecticides used for soybean aphid management in the north-central United States are broad-spectrum organophosphates and pyrethroids (Hodgson et al 2012;Olson et al 2008). These non-specific insecticides not only kill aphids, but also kill beneficial insects (e.g., lady beetles, minute pirate bugs, parasitic wasps) that naturally suppress soybean aphid populations.…”

Section: Costs Associated With Treating Soybean Aphids Too Earlymentioning

confidence: 99%

“…Although outbreaks are less common in some states since the mid-2000s (Bahlai et al 2015), soybean aphid is still the key insect pest of soybean in this region (Hurley and Mitchell 2014). In North America, a tremendous amount of research and observational data have been generated on soybean aphid since its initial detection, and tools and knowledge now exist for effective management of this pest (Hodgson et al 2012;Ragsdale et al 2004;Ragsdale et al 2011;Tilmon et al 2011). …”

Section: Introductionmentioning

confidence: 99%

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Biology and Economics of Recommendations for Insecticide-Based Management of Soybean Aphid

Koch

Potter

Glogoza

et al. 2016

Plant Health Progress

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Soybean aphid, Aphis glycines Matsumura, remains the key insect pest of soybean, Glycine max (L.) Merrill, in the north-central United States. Management of this pest has relied primarily on scouting and application of foliar insecticides based on an economic threshold (ET) of 250 aphids per plant. This review explains why this ET remains valid for soybean aphid management, despite changes in crop value and input costs. In particular, we review how soybean aphid impacts soybean yield, the role of biology and economics in recommendations for soybean aphid management, and the shortand long-term consequences of inappropriately timed insecticide applications.

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“…Heavy infestations by A. glycines can result in yellow and wrinkled leaves, reduction in plant height, reduced pod set, and fewer seeds within pods (Lin et al 1993, Tilmon et al 2011. Infested leaves may turn black because of sooty mold growing on the sugary excretions or "honeydew" produced by A. glycines (Tilmon et al 2011, Hodgson et al 2012. In total, 15Ð16 asexual generations of A. glycines may occur on soybean.…”

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confidence: 99%

Identification of Novel Sources of Host Plant Resistance to Known Soybean Aphid Biotypes

2013

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While soybean cultivars with resistance to the soybean aphid (Aphis glycines Matsumura) have been commercially released, the presence of virulent biotypes capable of overcoming plant resistance threatens the durability of host plant resistance as a stable management tactic. Novel sources of host plant resistance are needed to combat rapid biotype evolution. In this study, we screened 1,061 soybean plant introductions (PIs) for resistance to three known biotypes of A. glycines. Based on a series of growth chamber and field screenings, we identified 11 PIs that showed resistance to biotype 1 of A. glycines. Among these 11 PIs, 7 PIs were resistant to biotype 2 and 5 PIs were resistant to biotype 3. Further, two PIs (PI 606390A from Vietnam and PI 340034 from South Korea) showed resistance to all three biotypes of A. glycines. We also identified 11 PIs that were potentially tolerant to A. glycines, illustrated by no adverse impact on plant quality because of A. glycines infestation. As resistant PIs identified in this study belong to maturity group II-IV, they can be readily crossed to early maturing cultivars adapted to north-central states of the United States, where A. glycines is a major pest. The genetic characterization of resistance in these PIs and incorporation of novel resistant genes into elite soybean cultivars will broaden the defense against multiple biotypes of A. glycines.

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Management Recommendations for Soybean Aphid (Hemiptera: Aphididae) in the United States

Cited by 95 publications

References 1 publication

Jasmonate-dependent plant defenses mediate soybean thrips and soybean aphid performance on soybean

Jasmonate-dependent plant defenses mediate soybean thrips and soybean aphid performance on soybean

Biology and Economics of Recommendations for Insecticide-Based Management of Soybean Aphid

Identification of Novel Sources of Host Plant Resistance to Known Soybean Aphid Biotypes

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