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Evaluating resistant brassica trap crops to manage Heterodera schachtii (Schmidt) infestations in eastern England
Author(s) -
Wright Alistair JD,
Back Matthew A,
Stevens Mark,
Sparkes Debbie L
Publication year - 2019
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.5134
Subject(s) - heterodera schachtii , biology , agronomy , brassica , trap crop , sowing , heterodera , crop , resistance (ecology) , cultivar , hatching , sugar beet , nematode , horticulture , ecology
Background The beet cyst nematode (BCN), Heterodera schachtii Schmidt, is a plant parasitic nematode that causes severe yield losses in sugar beet. Resistant brassicas (radish and mustard) have been bred to be planted after harvest of the main crop, for example a cereal, and encourage BCN juvenile hatching. The resistant plants stimulate juvenile hatching but are not suitable hosts. Juveniles are unable to complete their lifecycle and thus populations are lowered. This research aimed to investigate the effectiveness of a range of brassicas in terms of BCN control when grown in infested fields in eastern England. Results Experiments used four different radish cultivars, which differed in their resistance to BCN, and one resistant mustard variety. Field experiments were sown in early September in 2016 and 2017. Significant reductions in BCN populations were found only following resistant mustard and the radish with the greatest resistance level. Conclusions Further research is needed to understand how best to utilize brassicas and whether they are economically viable when alternative management options for BCN are available. Time of planting may be crucial to fully achieve their BCN‐reducing potential. © 2018 Society of Chemical Industry