scholarly journals Effect of flower identity and diversity on reducing aphid populations via natural enemy communities

2021 ◽  
Author(s):  
Sharon E. Zytynska ◽  
Moritz Eicher ◽  
Robin Fahle ◽  
Wolfgang W. Weisser
Keyword(s):  
Natural Enemy ◽  
Aphid Populations

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.

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.

The effect of ant attendance on the success of rosy apple aphid populations, natural enemy abundance and apple damage in orchards

2007 ◽  
Vol 0 (0) ◽  
pp. 071108133815002-??? ◽  
Author(s):  
A. Stewart-Jones ◽  
T. W. Pope ◽  
J. D. Fitzgerald ◽  
G. M. Poppy
Keyword(s):  
Natural Enemy ◽  
Ant Attendance ◽  
Aphid Populations

Diversification of plant-feeding insects is positively correlated with natural enemy pressure

2016 ◽  
Author(s):  
Mayrolin Z. García Morales
Keyword(s):  
Natural Enemy ◽  
Plant Feeding

scholarly journals Virome Analysis of Aphid Populations That Infest the Barley Field: The Discovery of Two Novel Groups of Nege/Kita-Like Viruses and Other Novel RNA Viruses

2020 ◽  
Vol 11 ◽  
Author(s):  
Hideki Kondo ◽  
Miki Fujita ◽  
Hiroshi Hisano ◽  
Kiwamu Hyodo ◽  
Ida Bagus Andika ◽  
...  
Keyword(s):  
Rna Viruses ◽  
Aphid Populations
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