Author

M. Van Helden

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Zoology· 2

Signature Assays, Organisms & Methods

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Approach:experimental assay· 2 Research Focus:ecology & biodiversity· 1 Research Focus:host-pathogen & immune response· 1

Frequent Co-Authors

A. A. Hoffmann· 2 shared P. A. Umina· 2 shared S. E. Ward· 2 shared A. Balfour-Cunningham· 1 shared C. Langley· 1 shared D. Severtson· 1 shared H. Parry· 1 shared J. C. Holloway· 1 shared

Activity by Year

2021-2021 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

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2 shared papersZoology

A. A. Hoffmann

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2 papers

Recent·Most cited

Is what you see what you get? The relationship between field observed and actual aphid parasitism rates in canola crops

S. E. Ward, P. A. Umina, H. Parry, A. Balfour-Cunningham, X. Cheng, T. Heddle, J. C. Holloway, C. Langley, D. Severtson, M. Van Helden, A. A. Hoffmann

The paper compares observed parasitism rates from field mummy counts with actual parasitism rates from laboratory-reared parasitoids in canola crops, finding actual rates are significantly higher than observed.

bioRxiv · Apr 12, 2021 · PreprintZoology

The effects of insecticide seed treatments on green peach aphid Myzus persicae (Sulzer) (Homoptera: Aphididae) parasitism by Aphidius colemani Viereck (Hymenoptera: Aphidiidae) and predation by Mallada signatus (Schneider) (Neuroptera: Chrysopidae)

S. E. Ward, A. A. Hoffmann, M. Van Helden, P. A. Umina

This study examines how insecticide seed treatments affect parasitism by Aphidius colemani and predation by Mallada signatus on green peach aphids, finding immediate but short-lived effects on parasitoid fitness.

bioRxiv · Mar 7, 2021 · PreprintZoology