Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

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    Mass trapping of the apple sawfly Hoplocampa testudinea
    Helsen, H.H.M. ; Jansonius, P.J. ; Brouwer, G.W. ; Sluis, B.J. van der; Tol, R.W.H.M. van; Groot, A.V. de; Kats, R.J.M. van; Maas, M.P. van der - \ 2020
    In: Proceedings of the Conference, 17-19 February 2020, Hohenheim, Germany. - - p. 99 - 102.
    19th International Conference on Organic Fruit Growing: Proceedings of the Conference, 17-19 February 2020, Hohenheim
    Sun cream for trees?
    Sluis, Bart van der - \ 2020
    Bestrijding suzuki-fruitvlieg : Werkingsmechanisme van middelen verschillend
    Helsen, H.H.M. ; Sluis, B.J. van der - \ 2020
    De Fruitteelt 2020 (2020)6. - ISSN 0016-2302 - p. 6 - 7.
    Overwintered Drosophila Suzukii are the main source for infestations of the first fruit crops of the season
    Panel, Aurore ; Zeeman, Laura ; Sluis, B.J. van der; Elk, P.J.H. van; Pannebakker, B.A. ; Wertheim, Bregje ; Helsen, H.H.M. - \ 2019
    In: IOBC-WPRS Bulletin IOBC-WPRS (IOBC-WPRS Bulletin ) - p. 27 - 29.
    Weinig verandering in begrotingsrichtprijzen appel en peer
    Groot, M.J. ; Sluis, B.J. van der - \ 2019
    De Fruitteelt 2019 (2019)3. - ISSN 0016-2302 - p. 17 - 19.
    Evaluation of resistance against ash dieback in Fraxinus spp.
    Hiemstra, J.A. ; Sluis, B.J. van der; Coolen, Silvia - \ 2019
    - 1 p.
    Fruitteelt en Boomkwekerij 2030 Home
    Balk, Peter ; Dalfsen, P. van; Harteveld, D.O.C. ; Heiden, Alma van der; Reuler, H. van; Sluis, B.J. van der - \ 2019
    Wageningen : Groen Kennisnet
    Weinig verandering in begrotingsrichtlijnen appel en peer : Prijsontwikkeling appels en peren
    Sluis, B.J. van der; Groot, M.J. - \ 2019
    De Fruitteelt (2019)3. - ISSN 0016-2302 - p. 17 - 19.
    Beschermde appelteelt; Bestrijding van appelzaagwesp door wegvangen
    Helsen, H.H.M. ; Sluis, B.J. van der; Tol, R.W.H.M. van; Groot, G.A. de; Kats, R.J.M. van; Maas, M.P. van der - \ 2018
    - 2 p.
    Voor de bestrijding van appelzaagwesp (Hoplocampatestudinea) zijn fruittelers afhankelijk van chemische middelen. Verschillende van deze middelen staan op de EU lijst “Candidates forsubstitution” en zullen op termijn mogelijk verdwijnen. Voor de biologische teelt zijn in Nederland geen middelen voor de bestrijding van appelzaagwesp toegelaten. In het project Beschermde Teelt zoeken we daarom naar alternatieve, niet-chemische bestrijdingsmethoden.
    Overwintered Drosophila suzukii are the main source for infestations of the first fruit crops of the season
    Panel, Aurore D.C. ; Zeeman, Laura ; Sluis, B.J. van der; Elk, P.J.H. van; Pannebakker, B.A. ; Wertheim, B. ; Helsen, H.H.M. - \ 2018
    Insects 9 (2018)4. - ISSN 2075-4450
    The mechanisms allowing the widespread invasive pest Drosophila suzukii to survive from early spring until the availability of the first fruit crops are still unclear. Seasonal biology and population dynamics of D. suzukii were investigated in order to better understand the contribution of the early spring hosts to the infestation of the first fruit crops of the season. We identified hosts available to D. suzukii in early spring and assessed their suitability for the pest oviposition and reproductive success under field and laboratory conditions. The natural infestation rate of one of these hosts, Aucuba japonica, was assessed over springtime and the morphology of the flies that emerged from infested A. japonica fruits was characterized under field conditions. Then, these findings were correlated with long-term monitoring data on seasonal reproductive biology and morphology of the pest, using a cumulative degree-days (DD) analysis. Field sampling revealed that overwintered D. suzukii females were physiologically able to lay eggs at 87 DD which coincided with the detection of the first infested early spring hosts. The latter were continuously and increasingly infested by D. suzukii eggs in nature from early spring until the end of May, in particular Aucuba japonica. Individuals emerged from most of these hosts were characterized by a poor fitness and a rather low success of emergence. In the field, only few summer morphs emerged from naturally infested A. japonica fruits around the end of May-beginning of June. However, field monitoring in orchards revealed that D. suzukii individuals consisted solely of winter morphs until mid-June. These observations indicate that overwintered D. suzukii females are the predominant source for the infestations in the first available fruit crops of the season. We discuss these findings in the context of possible pest control strategies.
    Vliegenvoeding verbetert bestrijding suzuki fruitvlieg
    Helsen, H.H.M. ; Sluis, B.J. van der - \ 2018
    Groenten & Fruit 2018 (2018)10. - ISSN 0925-9708 - p. 40 - 41.
    Effect van een barrière van insectengaas rondom het perceel op aantasting door suzuki-fruitvlieg
    Helsen, H.H.M. ; Sluis, B.J. van der; Doornspeek, H. van; Derikx, R. - \ 2018
    Zetten : Wageningen University & Research, Open Teelten - 2 p.
    Effect van hydrocooling op de sterfte van eieren en jonge larven van suzuki-fruitvlieg
    Sluis, B.J. van der; Helsen, H.H.M. - \ 2018
    Surround vermindert de eileg door Suzuki-fruitvlieg, maar het residu spoelt niet af bij hydrocooling
    Sluis, B.J. van der; Helsen, H.H.M. - \ 2018
    Ontwikkelingssnelheid en aantal generaties van suzuki-fruitvlieg in Nederland
    Helsen, H.H.M. ; Lacault, Caroline ; Sluis, B.J. van der - \ 2018
    Randwijk : Wageningen University & Research, Open Teelten - 1 p.
    Dropsa: Ex-post economic analysis of proposed strategies for D. suzukii and Psa : Dropsa, D7.2
    Groot, M.J. ; Sluis, B.J. van der - \ 2018
    Randwijk : Wageningen University & Research, Open Teelten - 25 p.
    Hogere begrotingsrichtprijzen voor appel en peer
    Sluis, B.J. van der; Groot, M.J. - \ 2018
    De Fruitteelt 108 (2018)1. - ISSN 0016-2302 - p. 16 - 18.
    Insect netting as a vital component of a Drosophila suzukii control strategy
    Helsen, H.H.M. ; Sluis, B.J. van der - \ 2018
    Suzuki-fruitvlieg bij pruim
    Helsen, H.H.M. ; Sluis, B.J. van der - \ 2017
    Zetten : Wageningen UR
    Succesvolle strategie tegen Suzuki-fruitvlieg
    Helsen, H.H.M. ; Sluis, B.J. van der - \ 2017
    De Fruitteelt 107 (2017)25. - ISSN 0016-2302 - p. 6 - 8.
    De Suzuki-fruitvlieg bestrijden in kersen, vraagt om een intensieve aanpak. Steeds meer kersentelers overwegen daarom insectengaas aan te schaffen. Maar hoe effectief is dat? En welke aanvullende maatregelen zijn er nodig om vrij te blijven van aantasting? Wageningen UR onderzocht verschillende strategieën.
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