Herman Helsen

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Research Output 1996 2019

A review of the apple sawfly, hoplocampa testudinea (Hymenoptera tenthredinidae)

Vincent, C., Babendreier, D., Świergiel, W., Helsen, H. & Blommers, L. H. M., 2019, In : Bulletin of Insectology. 72, 1, p. 35-54 20 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

Hoplocampa testudinea

Tenthredinidae

sawflies

apples

Hymenoptera

Beschermde appelteelt; Bestrijding van appelzaagwesp door wegvangen

Helsen, H. H. M., van der Sluis, B. J., van Tol, R. W. H. M., de Groot, G. A., van Kats, R. J. M. & van der Maas, M. P., 2018. 2 p.

Research output: Contribution to conference › Poster › Academic

Open Access

Bestrijding van bramengalmijt met roofmijten

Winkler, K., van Holstein, R., Messelink, G. J. & Helsen, H. H. M., 2018.

Research output: Contribution to conference › Poster › Professional

Open Access

Bruingemarmerde schildwants in opmars

Winkler, K. & Helsen, H. H. M., 2018.

Research output: Contribution to conference › Poster › Professional

Open Access

Developing strategies for controlling tarsonemid and eriophyoid mites with phytoseiid predatory mites in flower bulbs, Bromeliaceae , gerbera and blackberry

Leman, A., van Holstein, R., Winkler, K., van Kuik, A. J., Helsen, H. H. M. & Messelink, G. J., 2018.

Research output: Contribution to conference › Poster › Professional

Open Access

Projects 2008 2020

2 Active
10 Finished

KV 1509-094 Ontwikkeling effectieve en duurzame technieken plaagvrije tuinbouwproducten in internationale handersketens (BO-50-002-020, BO-33.05-006-002)

Helsen, H.

1/01/16 → 31/12/19

Project: EZproject

TU-16033 NWO Biological control Spotted Wing Drosophila (BO-50-003-002, BO-25.10-006-003)

Helsen, H.

1/01/16 → 31/12/20

Project: EZproject

NWO 2017 Biological control of the new invasive pest species (BO-25.10-013-001)

Helsen, H.

1/01/17 → 31/12/17

Project: EZproject

KV 1509-069 De oorworm in de bodemfase (BO-50-002-017, BO-25.10-005-002)

Helsen, H.

1/01/16 → 31/12/18

Project: EZproject

QUESSA (BO-25.10-001-008)

Helsen, H.

1/01/15 → 31/12/17

Project: EZproject

Activities 2006 2018

114 Public lecture/debate/seminar
1 Participation in or organising a workshop, seminar, course
1 Invited talk