scholarly journals Salinity Improves Performance and Alters Distribution of Soybean Aphids

2018 ◽  
Vol 47 (4) ◽  
pp. 875-880 ◽  
Author(s):  
Jaclyn Eichele-Nelson ◽  
Thomas DeSutter ◽  
Abbey F Wick ◽  
Erin L Harmon ◽  
Jason P Harmon
Keyword(s):  
Soybean Aphids

Field-level effects of preventative management tactics on soybean aphids (Aphis glycines Matsumura) and their predators

2011 ◽  
Vol 136 (5) ◽  
pp. 361-371 ◽  
Author(s):  
N. A. Tinsley ◽  
K. L. Steffey ◽  
R. E. Estes ◽  
J. R. Heeren ◽  
M. E. Gray ◽  
...  
Keyword(s):  
Aphis Glycines ◽  
Soybean Aphids ◽  
Field Level ◽  
Aphis Glycines Matsumura ◽  
Management Tactics

Soybean aphids adapted to host-plant resistance by down regulating putative effectors and up regulating transposable elements

2020 ◽  
Vol 121 ◽  
pp. 103363
Author(s):  
Ashley D. Yates-Stewart ◽  
Josquin Daron ◽  
Saranga Wijeratne ◽  
Saima Shahid ◽  
Hilary A. Edgington ◽  
...  
Keyword(s):  
Transposable Elements ◽  
Host Plant ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Soybean Aphids

scholarly journals Adjacent habitat type affects the movement of predators suppressing soybean aphids

PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0218522 ◽  
Author(s):  
Kandanpita Galaddalage Lahiru Ishan Samaranayake ◽  
Alejandro Carlos Costamagna
Keyword(s):  
Habitat Type ◽  
Soybean Aphids

Development of soybean aphid genomic SSR markers using next generation sequencing

Genome ◽  
2011 ◽  
Vol 54 (5) ◽  
pp. 360-367 ◽  
Author(s):  
Tae-Hwan Jun ◽  
Andrew P. Michel ◽  
M.A. Rouf Mian
Keyword(s):  
Molecular Markers ◽  
Next Generation Sequencing ◽  
Ssr Markers ◽  
The United States ◽  
Soybean Aphid ◽  
Genomic Sequences ◽  
Next Generation ◽  
Soybean Aphids ◽  
Genomic Ssr ◽  
Generation Sequencing

Simple sequence repeats (SSRs) or microsatellites are very useful molecular markers, owing to their locus-specific codominant and multiallelic nature, high abundance in the genome, and high rates of transferability across species. The soybean aphid ( Aphis glycines Matsumura) has become the most damaging insect pest of soybean ( Glycine max (L.) Merr.) in North America, since it was first found in the Midwest of the United States in 2000. Biotypes of the soybean aphid capable of colonizing newly developed aphid-resistant soybean cultivars have been recently discovered. Genetic resources, including molecular markers, to study soybean aphids are severely lacking. Recently developed next generation sequencing platforms offer opportunities for high-throughput and inexpensive genome sequencing and rapid marker development. The objectives of this study were (i) to develop and characterize genomic SSR markers from soybean aphid genomic sequences generated by next generation sequencing technology and (ii) to evaluate the utility of the SSRs for genetic diversity or relationship analyses. In total 128 SSR primer pairs were designed from sequences generated by Illumina GAII from a reduced representation library of A. glycines. Nearly 94% (120) of the primer pairs amplified SSR alleles of expected size and 24 SSR loci were polymorphic among three aphid samples from three populations. The polymorphic SSRs were successfully used to differentiate among 24 soybean aphids from Ohio and South Dakota. Sequencing of PCR products of two SSR markers from four aphid samples revealed that the allelic polymorphism was due to variation in the SSR repeats among the aphids. These markers should be particularly useful for genetic differentiation among aphids collected from soybean fields at different localities and regions. These SSR markers provide the soybean aphid research community with the first set of PCR-based codominant markers developed from the genomic sequences of A. glycines.

scholarly journals Management of Insecticide-Resistant Soybean Aphids in the Upper Midwest of the United States

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Robert L Koch ◽  
Erin W Hodgson ◽  
Janet J Knodel ◽  
Adam J Varenhorst ◽  
Bruce D Potter
Keyword(s):  
United States ◽  
Pyrethroid Resistance ◽  
Management Strategies ◽  
The United States ◽  
Soybean Aphid ◽  
Upper Midwest ◽  
Pyrethroid Insecticides ◽  
Soybean Aphids ◽  
Development Of Resistance ◽  
Laboratory Confirmation

Abstract Since the first observation of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), in North America in 2000, it has become the most economically damaging insect of soybean in the Upper Midwest of the United States. For the last 17 yr, soybean aphid management has relied almost entirely on the use of foliar-applied broad-spectrum insecticides. However, in 2015 in Minnesota, failures of foliar-applied pyrethroid insecticides were reported and pyrethroid resistance was confirmed with laboratory bioassays using lambda-cyhalothrin and bifenthrin. In 2016 and 2017, further reports of failures of pyrethroid insecticides and/or laboratory confirmation of resistance occurred in Iowa, North Dakota, South Dakota, and Manitoba. In response to the challenge posed by insecticide-resistant soybean aphids, we recommend several management strategies for minimizing further development of resistance and subsequent pest-induced crop losses: 1) scout and use the economic threshold to determine when to apply insecticides, 2) apply the insecticides properly, 3) assess efficacy 3–5 d after application, and 4) alternate to a different insecticide group if another application is required. In the long term, soybean aphid management must move beyond insecticide-based management to true integrated pest management by incorporating multiple tactics.

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