Spatial distribution of cabbage root maggot (Delia radicum) and clubroot (Plasmodiophora brassicae) in winter oilseed rape crops in the Czech Republic

Vojtěch Hlavjenka, Marek Seidenglanz, Aleš Dufek and Hana Šefrová
Additional contact information
Vojtěch Hlavjenka: Department of Plant Protection, Agritec Plant Research, Ltd., Šumperk, Czech Republic
Marek Seidenglanz: Department of Plant Protection, Agritec Plant Research, Ltd., Šumperk, Czech Republic
Aleš Dufek: Agriresearch Rapotín, Ltd., Vikýřovice, Czech Republic
Hana Šefrová: Department of Crop Science, Breeding and Plant Medicine, Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic$2

Plant Protection Science, 2017, vol. 53, issue 3, 159-168

Abstract: The amount and spatial distribution of plants afflicted with cabbage root maggot (Delia radicum; CRM) and clubroot (Plasmodiophora brassicae) in winter oilseed rape crops were assessed in the Olomouc region (Northern Moravia, Czech Republic) over the course of 2012-2014. A total of 16 commercial rape fields were included in the assessments. Plants with tumours showed a significantly lower (P < 0.001) level of infestation induced by CRM (24% of plants infested) compared to plants without tumours (37% of plants infested). According to a generalised linear mixed model, plants with thicker hypocotyls are predisposed to significantly higher levels (P < 0.001) of root surface damage induced by CRM. The correlation analysis indicates rather weak or intermediate levels of correlation between the two variables (hypocotyls thickness × root surface damage induced by CRM). Both CRM and clubroot symptomatic plants showed a significant tendency for aggregation in rape crops, but not in all cases. Distributions of CRM and clubroot symptomatic plants were either significantly spatially dissociated or not associated in crops. Ovipositing D. radicum females showed some tendency to avoid zones with higher number of plants infected by P. brassicae. Distributions of CRM and hypocotyl thickness levels were significantly spatially associated in crops in several cases.

Keywords: within-field distribution of pests in crops; spatial associations between pests in crops; Integrated Plant Management; control of insect pests; winter oilseed rape diseases (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pps.agriculturejournals.cz/doi/10.17221/181/2015-PPS.html (text/html)
http://pps.agriculturejournals.cz/doi/10.17221/181/2015-PPS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:53:y:2017:i:3:id:181-2015-pps

DOI: 10.17221/181/2015-PPS

Access Statistics for this article

Plant Protection Science is currently edited by Ing. Eva Karská, (Executive Editor PPS)

More articles in Plant Protection Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().