Shifts inBuchnera aphidicoladensity in soybean aphids (Aphis glycines) feeding on virus-infected soybean

2015 ◽  
Vol 24 (4) ◽  
pp. 422-431 ◽  
Author(s):  
Bryan J. Cassone ◽  
Margaret G. Redinbaugh ◽  
Anne E. Dorrance ◽  
Andrew P. Michel
Keyword(s):  
Aphis Glycines ◽  
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

scholarly journals Effect of Aphid Behavior on Efficiency of Transmission of Soybean mosaic virus by the Soybean-Colonizing Aphid, Aphis glycines

Plant Disease ◽  
2002 ◽  
Vol 86 (11) ◽  
pp. 1260-1264 ◽  
Author(s):  
R. Y. Wang ◽  
S. A. Ghabrial
Keyword(s):  
Mosaic Virus ◽  
Transmission Rate ◽  
Soybean Mosaic Virus ◽  
Aphis Glycines ◽  
Coding Region ◽  
Rt Pcr ◽  
Soybean Aphids ◽  
Efficient Vector ◽  
Tobacco Vein Mottling Virus ◽  
Soybean Leaves

The soybean aphid (Aphis glycines) was a poor vector (0.83% transmission) when the aphids were allowed overnight acquisition feed on Soybean mosaic virus (SMV)-infected soybean leaves. However, A. glycines was shown to be a very efficient vector (34.72% transmission) when individual aphids were allowed a 1-min acquisition probe on the same infected leaves used for the feeding treatment. Similar results were obtained with Myzus persicae and tobacco in transmission experiments of the potyviruses Tobacco etch virus (feeding: 1.36%; probing: 45.5%) and Tobacco vein mottling virus (feeding: 2.0%; probing: 47.5%). A reverse transcription-polymerase chain reaction (RT-PCR) assay was developed to detect SMV in single soybean aphids using a pair of primers designed to amplify a 469-bp PCR fragment in the coding region of SMV coat protein. In contrast to the low transmission rate obtained with the soybean aphids that acquired virus through overnight feeding, RT-PCR detected SMV in 100% of these aphids. Interestingly, the rate of SMV detection by RT-PCR in aphids that were allowed a 1-min acquisition probe (31.67%) coincided with percent transmission (34.72%). The practical application of RT-PCR in detecting nonpersistently transmitted viruses and its implications for virus epidemiology are discussed.

scholarly journals SOIL NUTRITION MANAGEMENT AND PREDATION BY CHEILOMENES SEXMACULATA (COLEOPTERA: COCCINELLIDAE) IMPACTS ON APHIS GLYCINES (HOMOPTERA: APHIDIDAE)

2010 ◽  
Vol 10 (2) ◽  
pp. 131-145
Author(s):  
Rosma Hasibuan ◽  
Jamalam Lumbanraja
Keyword(s):  
Natural Enemies ◽  
Soil Nutrient ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Chicken Manure ◽  
Aphid Population ◽  
Soybean Aphids ◽  
Soil Nutrition ◽  
Nutrition Management ◽  
The Mean

Soil nutrition management and predation by Cheilomenes sexmaculata (Coleoptera: Coccinellidae) impacts on Aphis glycines (Homoptera: Aphididae).  Understanding how soil nutrient availability and natural enemies impacts on aphid populations are important for soybean aphid,  Aphis glycines Matsumura (Homoptera: Aphididae), management. Studies were conducted to examine the effect of soil nutrient management and predaceous coccinellid beetle, Cheilomenes sexmaculata (Fabr.), (Coleoptera: Coccinellidae) on A. glycines population.  The plot size of 300 m2 was set up into 12 plots consisting four treatments and three replications.   The treatments were the combination of NPK (urea 100 kg ha-1 + SP-36 200 kg ha-1 + KCl 200 kg ha-1) levels, dolomite (4 ton ha-1), compost  (10 ton ha-1), and chicken manure (10 ton ha-1). While, the predator’s potential of C. sexmaculata was measured both in the field and laboratory conditions.  The results of the studies indicated that soil nutrition treatments had significant effects on the plant performances: leaf numbers; pod numbers; and plant height. In line with this result, there were significant effects of soil nutrient treatments on the amount of plant nutrient: C, N, P, K, C, Ca, and Mg.  The positive correlation coefficient was observed between the aphid population and nitrogen content, while the significant negative correlation found on between aphid population and the calcium and magnesium content.  Meanwhile, the mean number of soybean aphids (A. glycines)  consumed by C. sexmaculata increased from 8.915 to 40.64  aphids, with an average  26.35 ± 3.16 aphids.  The mean numbers of aphids consumed by predator were significantly influenced by prey densities.   The exclosure study result showed that the densities of A. glycines  in caged plants was higher than that in un-caged plants. In the no-cage treatments, natural enemies had complete access to soybean aphids and caused the total reduction (100%) of A. glycines density by the 8th wk sample period. These findings suggest that reducing the amount of synthetic chemical fertilizer NPK can be supplemented with natural organic materials such as composts and chicken manure and natural occurring predator, C. sexmaculata, is an important natural enemy of the soybean aphid.

Variation in Soybean Aphid (Hemiptera: Aphididae) Biotypes Within Fields

2021 ◽  
Author(s):  
S J Bhusal ◽  
R L Koch ◽  
A J Lorenz
Keyword(s):  
Resistance Genes ◽  
Environmental Sustainability ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Aphid Resistance ◽  
Soybean Cultivars ◽  
Major Pest ◽  
Single Field ◽  
Aphis Glycines Matsumura ◽  
Multiple Resistance Genes

Abstract Soybean aphid (Aphis glycines Matsumura (Hemiptera: Aphididae)) has been a major pest of soybean in North America since its detection in this continent in 2000 and subsequent spread. Although several aphid resistance genes have been identified, at least four soybean aphid biotypes have been discovered, with three of them being virulent on soybean cultivars with certain soybean aphid resistance genes. These biotypes are known to vary across years and locations, but information on their variation within single fields is limited. An investigation was conducted to study the variation of soybean aphid biotypes within single townships and fields in Minnesota. Screening of 28 soybean aphid isolates collected from seven soybean fields (six soybean fields in Cairo and Wellington Townships of Renville County, MN and one field in Wilmar Township of Kandiyohi County, MN) revealed the existence of multiple known biotypes of soybean aphid within single fields of soybean. We found up to three biotypes of soybean aphid in a single field. Two biotypes were found in five fields while only one field had only a single biotype. Three isolates presented reactions on a panel of resistant and susceptible indicator lines that were different from known biotypes. These results highlight the importance of characterizing soybean aphid biotypes in small geographical areas and utilizing generated knowledge to develop soybean cultivars pyramided with multiple resistance genes. The outcome will be decreased use of insecticides, thereby improving economic and environmental sustainability of soybean production.

Identification and expression profiles analysis of odorant‐binding proteins in soybean aphid, Aphis glycines (Hemiptera: Aphididae)

2019 ◽  
Vol 27 (5) ◽  
pp. 1019-1030 ◽  
Author(s):  
Ling Wang ◽  
Ying‐Dong Bi ◽  
Ming Liu ◽  
Wei Li ◽  
Miao Liu ◽  
...  
Keyword(s):  
Binding Proteins ◽  
Expression Profiles ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Odorant Binding Proteins ◽  
Odorant Binding

scholarly journals Flight Performance of the Soybean Aphid,Aphis glycines(Hemiptera: Aphididae) Under Different Temperature and Humidity Regimens

2008 ◽  
Vol 37 (2) ◽  
pp. 301-306 ◽  
Author(s):  
Ying Zhang ◽  
Limin Wang ◽  
Kongming Wu ◽  
Kris A. G. Wyckhuys ◽  
George E. Heimpel
Keyword(s):  
Soybean Aphid ◽  
Aphis Glycines ◽  
Flight Performance ◽  
Temperature And Humidity
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