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.

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Record number 539001
Title Dynamics of post-harvest pathogens Neofabraea spp. and Cadophora spp. in plant residues in Dutch apple and pear orchards
Author(s) Köhl, J.; Wenneker, M.; Haas, B.H. de; Anbergen, R.H.N.; Goossen-van de Geijn, H.M.; Pinto, F.A.M.F.; Kastelein, P.
Source Plant Pathology 67 (2018)6. - ISSN 0032-0862 - p. 1264 - 1277.
DOI https://doi.org/10.1111/ppa.12854
Department(s) PPO/PRI Biointeractions and Plant Health
WPR AGV Team Fruit-BomenOT Team Fruit-Bomen
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract Post-harvest diseases of apple and pear cause significant losses.
Neofabraea spp. and Cadophora spp. infect fruits during the growing season and remain quiescent until disease symptoms occur after several months in storage. Epidemiological knowledge of these diseases is limited. TaqMan PCR assays were developed for quantification of N. alba, N. perennans, C. malorum and C. luteo-olivacea in environmental samples. Various host tissues, dead weeds and grasses, soil and applied composts were collected in 10 apple and 10 pear orchards in May 2012. Neofabraea alba was detected in 73% of samples from apple orchards and 48% from pear orchards. Neofabraea perennans was present in a few samples. Cado- phora luteo-olivacea was detected in 99% of samples from apple orchards and 93% from pear orchards, whilst C. malo-rum was not detected in any sample. In apple orchards, highest concentrations of N. alba
were found in apple leaf litter, cankers and mummies, and of C. luteo-olivacea in apple leaf litter, mummies and dead weeds. In pear orchards, N. alba and C. luteo-olivacea were found in highest concentrations in pear leaf litter and in dead weeds. Substrate colonization varied considerably between orchards. The temporal dynamics of pathogens was followed in four apple orchards and four
pear orchards. In apple orchards the colonization by pathogens decreased from April until August and increased from September until December. This pattern was less pronounced in pear. Knowledge on population dynamics is essential for
the development of preventative measures to reduce risks of fruit infections during the growing season.
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