The influence of landscape complexity and natural enemy movement on soybean aphid populations in Manitoba, Canada

2016 ◽  
Author(s):  
K.G.L.I. Samaranayake
Keyword(s):  
Natural Enemy ◽  
Soybean Aphid ◽  
Landscape Complexity ◽  
Aphid Populations

Incorporating natural enemy units into a dynamic action threshold for the soybean aphid,Aphis glycines(Homoptera: Aphididae)

2014 ◽  
Vol 70 (11) ◽  
pp. 1768-1768
Author(s):  
Rebecca H Hallett ◽  
Christine A Bahlai ◽  
Yingen Xue ◽  
Arthur W Schaafsma
Keyword(s):  
Natural Enemy ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Dynamic Action ◽  
Action Threshold

scholarly journals Acquisition and Transmissibility of U.S. Soybean dwarf virus Isolates by the Soybean Aphid, Aphis glycines

Plant Disease ◽  
2011 ◽  
Vol 95 (8) ◽  
pp. 945-950 ◽  
Author(s):  
V. D. Damsteegt ◽  
A. L. Stone ◽  
M. Kuhlmann ◽  
F. E. Gildow ◽  
L. L. Domier ◽  
...  
Keyword(s):  
The United States ◽  
Aphid Species ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Dwarf Virus ◽  
Yield Losses ◽  
Vector Specificity ◽  
Soybean Dwarf Virus ◽  
Virus Isolates ◽  
Aphid Populations

Soybean dwarf virus (SbDV) exists as several distinct strains based on symptomatology, vector specificity, and host range. Originally characterized Japanese isolates of SbDV were specifically transmitted by Aulacorthum solani. More recently, additional Japanese isolates and endemic U.S. isolates have been shown to be transmitted by several different aphid species. The soybean aphid, Aphis glycines, the only aphid that colonizes soybean, has been shown to be a very inefficient vector of some SbDV isolates from Japan and the United States. Transmission experiments have shown that the soybean aphid can transmit certain isolates of SbDV from soybean to soybean and clover species and from clover to clover and soybean with long acquisition and inoculation access periods. Although transmission of SbDV by the soybean aphid is very inefficient, the large soybean aphid populations that develop on soybean may have epidemiological potential to produce serious SbDV-induced yield losses.

scholarly journals Pest control of aphids depends on landscape complexity and natural enemy interactions

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1095 ◽  
Author(s):  
Emily A. Martin ◽  
Björn Reineking ◽  
Bumsuk Seo ◽  
Ingolf Steffan-Dewenter
Keyword(s):  
Pest Control ◽  
Natural Enemy ◽  
Landscape Complexity

Diversity and seasonal density of carabid beetles (Coleoptera: Carabidae) in relation to the soybean aphid in soybean crop in Québec, Canada

2012 ◽  
Vol 144 (4) ◽  
pp. 542-554 ◽  
Author(s):  
Annabelle Firlej ◽  
Annie-Ève Gagnon ◽  
Simon Laurin-Lemay ◽  
Jacques Brodeur
Keyword(s):  
Multivariate Analyses ◽  
Sampling Period ◽  
Soybean Aphid ◽  
Carabid Beetles ◽  
Pitfall Traps ◽  
Activity Density ◽  
Pterostichus Melanarius ◽  
Trap Catches ◽  
Field Location ◽  
Aphid Populations

AbstractWe studied the diversity and summer seasonal activity-density of Carabidae associated with soybean fields infested by the soybean aphid (Aphis glycinesMatsumura; Hemiptera: Aphididae) in Québec, Canada. Carabid beetles were sampled in six to seven fields from June to September 2004 and 2005 using pitfall traps. A total of 33 species from 15 genera were identified, with the exoticPterostichus melanarius(Illiger) (Coleoptera: Carabidae), representing 75.8% and 84.5% of all individuals trapped in 2004 and 2005, respectively. Large variations in species richness and diversity indexes were observed between fields within and between years. Multivariate analyses showed that carabid activity-density varied as a function of field location and sampling period, with individuals belonging to species overwintering as adults being more abundant early in the growing season. There was no relationship between carabid trap catches andA. glycinesdensity, suggesting that carabid beetles do not respond numerically to soybean aphid populations at the spatial scale studied.

scholarly journals Analysis and Control of the Singular System Model of Aphid Ecosystems

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Jingna Liu ◽  
Tie Zhang ◽  
Lichun Zhao ◽  
Bing Liu ◽  
Xueying Wei
Keyword(s):  
System Theory ◽  
Natural Enemy ◽  
Catastrophe Theory ◽  
Singular System ◽  
Biological Significance ◽  
System Model ◽  
Existence Conditions ◽  
And Control ◽  
The Impact ◽  
Aphid Populations

Considering the change of the parameter related to the natural enemy population and the impact on the aphid populations in the fold catastrophe manifold, the singular system model of aphid ecosystems is proposed. Combining singular system theory with catastrophe theory, the corresponding dynamics behaviors and the existence conditions of the impasse points are given by using the qualitative analysis. The biological significance of the analytical results is also discussed. The controllers are designed to make the aphid populations stabilize the refuge level by releasing natural enemy. Some numerical simulations are carried out to prove the results.

Soybean Aphid Populations on Aphid Resistant and Susceptible Soybean Lines Growing under Potassium Deficiency

cftm ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 1-6
Author(s):  
T. Michael Kates ◽  
Christina DiFonzo ◽  
Dechun Wang
Keyword(s):  
Soybean Aphid ◽  
Potassium Deficiency ◽  
Aphid Populations

scholarly journals A meta-analysis of crop pest and natural enemy response to landscape complexity

2011 ◽  
Vol 14 (9) ◽  
pp. 922-932 ◽  
Author(s):  
Rebecca Chaplin-Kramer ◽  
Megan E. O’Rourke ◽  
Eleanor J. Blitzer ◽  
Claire Kremen
Keyword(s):  
Natural Enemy ◽  
Meta Analysis ◽  
Landscape Complexity ◽  
Crop Pest

scholarly journals Identifying aphid resistance in the ancestral wheat Triticum monococcum under field conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Amma L. Simon ◽  
John C. Caulfield ◽  
Kim E. Hammond-Kosack ◽  
Linda M. Field ◽  
Gudbjorg I. Aradottir
Keyword(s):  
Natural Enemy ◽  
Management Strategies ◽  
Wheat Yield ◽  
Virus Transmission ◽  
Aphid Resistance ◽  
Triticum Monococcum ◽  
Metopolophium Dirhodum ◽  
Wheat Varieties ◽  
Aphid Infestation ◽  
Aphid Populations

AbstractWheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission. Through field phenotyping, we investigated aphid resistance in ancestral wheat Triticum monococcum (L.). Aphid (Rhopalosiphum padi (L.), Sitobion avenae (F.) and Metopolophium dirhodum (Wlk.)) populations and natural enemy presence (parasitised mummified aphids, ladybird adults and larvae and lacewing eggs and larvae) on two naturally susceptible wheat varieties, Triticum aestivum (L.) var. Solstice and T. monococcum MDR037, and three potentially resistant genotypes T. monococcum MDR657, MDR045 and MDR049 were monitored across three years of field trials. Triticum monococcum MDR045 and MDR049 had smaller aphid populations, whereas MDR657 showed no resistance. Overall, natural enemy presence was positively correlated with aphid populations; however, MDR049 had similar natural enemy presence to MDR037 which is susceptible to aphid infestation. It is hypothesised that alongside reducing aphid population growth, MDR049 also confers indirect resistance by attracting natural enemies. The observed resistance to aphids in MDR045 and MDR049 has strong potential for introgression into commercial wheat varieties, which could have an important role in Integrated Pest Management strategies to reduce aphid populations and virus transmission.

Sign in / Sign up

Export Citation Format

Share Document