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Effects of light leaf spot (Pyrenopeziza brassicae) infection on winter survival and yield of oilseed rape (Brassica napus)
Baierl, A.; Evans, Neal; Steed, J. M.; Fitt, Bruce D.L.; Sutherland, K.G. (British Crop Protection Council, 2002-11) -
Effects of temperature on R1m6-mediated resistance to Leptosphaeria maculans in Brassica napus
Huang, Yongju; Liu, R.; Li, Zi-Qin; Evans, Neal; Chevre, Anne-Marie; Delourme, R.; Renard, Michel; Fitt, Bruce D.L. (IOBC, 2006)Near-isogenic lines of Brassica napus lines with/without the resistance gene Rlm6 were used to investigate the effects of temperature on Rlm6-mediated resistance to Leptosphaeria maculans. Leaves were inoculated with ... -
Erratum: The impact of climate change on disease constraints on production of oilseed rape (vol 2, pg 143, 2010)
Evans, Neal; Butterworth, Michael H.; Baierl, Andreas; Semenov, Mikhail A.; West, Jon S.; Barnes, Andrew; Moran, Dominic; Fitt, Bruce D.L. (2011-03)Weather data generated for different parts of the UK under five climate change scenarios (baseline, 2020s low CO2 emissions, 2020s high emissions, 2050s low emissions, 2050s high emissions) was inputted into weather-based ... -
Factors affecting canker and light leaf spot severity in oilseed rape
West, Jon S.; Gladders, P.; Booth, E.; Thomas, J.; Jennaway, R.; Werner, P.; Bowman, J.; Nightingale, M.; Padbury, N.; Clarke, M.; Rogers, S. L.; Kenyon, D.; Atkins, Simon D.; Boys, Emily F.; Huang, Yongju; Evans, Neal; Latunde-Dada, A. O.; Li, Q.; Fitt, Bruce D.L. (2008-06) -
Fitness cost associated with loss of the AvrLm4 avirulence function in Leptosphaeria maculans (Phoma stem canker of oilseed rape)
Huang, Yongju; Li, Z. Q.; Evans, Neal; Rouxel, T.; Fitt, Bruce D.L.; Balesdent, Marie-Helene (2006-01)Near-isogenic isolates of Leptosphaeria maculans differing at the AvrLm4 avirulence locus (AvrLm4 or avrLm4) were produced in vitro. Methods for inoculation of leaves of oilseed rape with ascospores or conidia were compared. ... -
Fitness cost of virulence differs between the AvrLm1 and AvrLm4 loci in Leptosphaeria maculans (phoma stem canker of oilseed rape)
Huang, Yong-Ju; Balesdent, Marie-Helene; Li, Zi-Qin; Evans, Neal; Rouxel, Thierry; Fitt, Bruce D.L. (2010-02)To investigate whether the reported fitness cost of virulence at the AvrLm4 locus in Leptosphaeria maculans is common to other loci, near-isogenic (NI) isolates differing at AvrLm1 locus were produced in vitro. Fitness of ... -
Forecasting light leaf spot (Pyrenopeziza brassicae) of winter oilseed rape (Brassica napus) on the Internet
Souter, S. D.; Castells-Brooke, N.I.D; Antoniw, J.F.; Welham, S.J.; Fitt, Bruce D.L.; Evans, Neal (Association of Applied Biologists, 1999) -
Geostatistical analysis of the distribution of Leptosphaeria species causing phoma stem canker on winter oilseed rape (Brassica napus) in England
Stonard, J. F.; Marchant, B. P.; Latunde-Dada, A. O.; Liu, Z.; Evans, Neal; Gladders, P.; Eckert, M. R.; Fitt, Bruce D.L. (2010-02)In June/July 2001, 2002, 2003 and 2006, regional variation in distribution of the pathogens Leptosphaeria maculans and L. biglobosa that are causally associated with phoma stem canker was surveyed on winter oilseed rape ... -
Impacts of climate change on phoma stem canker and light leaf spot on UK oilseed rape
Fitt, Bruce D.L.; Evans, Neal; Huang, Yongju; West, Jon S.; Gladders, P. (2011)To illustrate impacts of climate change on plant disease epidemics, an oilseed rape crop growth model, and weather-based disease forecasting models for phoma stem canker (Leptosphaeria maculans) and light leaf spot ... -
In vitro mutation and selection of doubled-haploid Brassica napus lines with improved resistance to Sclerotinia sclerotiorum
Liu, S.; Wang, H.; Zhang, Junhua; Fitt, Bruce D.L.; Xu, Z.; Evans, Neal; Liu, Y.; Yang, W.; Guo, X. X. (2005-06)This paper describes a new protocol to develop doubled-haploid (DH) Brassica napus lines with improved resistance to Sclerotinia sclerotiorum. In this protocol, haploid seedlings derived from microspore cultures of B. napus ... -
Interactions between Leptosphaeria maculans, L. biglobosa and fungicides in oilseed rape
Hood, J. R.; Evans, Neal; Ashworth, Peter; Allin, J; Fitt, Bruce D.L. (2007) -
Interactive forecasting of light leaf spot (Pyrenopeziza brassicae) risk for winter oilseed rape on the internet
Evans, Neal; Steed, J. M.; Welham, S.J.; Antoniw, J.F.; Baierl, A.; Turner, J.A.; Gladders, P.; Fitt, Bruce D.L. (2003) -
Investigating the horizontal spatial spread of light leaf spot (Pyrenopeziza brassicae) of winter oilseed rape in the UK
Evans, Neal; Fitt, Bruce D.L.; McCartney, H. A.; Welham, S.J.; McRoberts, Neil (Association of Applied Biologists, 1999) -
Leptosphaeria maculans avirulence management for durable control of phoma stem canker of oilseed rape
West, Jon S.; Latunde-Dada, Akinwunmi O.; Rogers, S. L.; Huang, Yongju; Evans, Neal; Fitt, Bruce D.L. (2007) -
Light leaf spot (Pyrenopeziza brassicae) : a resurgent problem in the UK
Evans, Neal; Burlakoti, Rishi R.; Gladders, Peter; Ritchie, Faye; Turner, J.A.; Kloppel, Coretta; Fitt, Bruce D.L. (2014)Since 2006, the incidence and severity of light leaf spot (Pyrenopeziza brassicae) in winter oilseed rape in the UK has increased so that the disease is now the main disease concern for growers with respect to yield loss. ... -
OREGIN collection of oilseed rape fungal pathogen isolates managed by a relational database accessible to stakeholders via the Internet
Latunde-Dada, Akinwunmi O.; Hornby, P. E.; Castells-Brooke, N.; Evans, Neal; Fitt, Bruce D.L. (IOBC, 2006)One aim of the Defra-funded Oilseed Rape Genetic Improvement Network (OREGIN) is to establish, characterise and catalogue a collection of Leptosphaeria maculans (phoma stem canker) and Pyrenopeziza brassicae (light leaf ... -
Pest and disease management system for supporting winter oilseed rape decisions (PASSWORD) – validation phase
Gladders, P.; Dyer, Chris; Fitt, Bruce D.L.; Evans, Neal; van den Bosch, Frank; Baierl, A.; Turner, J.; Walters, K.; Northing, P.; Sutherland, K.G.; Oxley, S. J. P.; Foster, V.; Ellerton, D.; Myers, N.; Selley, Andrew; Ashworth, M.; Hall, B. (HGCA, 2005)Pests and particularly diseases cause serious loss of yield and quality in winter oilseed rape estimated to exceed £80 million/annum in some years. These losses have occurred despite an annual expenditure of about £3.5 ... -
Phoma stem canker and light leaf spot on oilseed rape in a changing climate
Fitt, Bruce D.L.; Evans, Neal; Gladders, P.; Huang, Yongju (Association of Applied Biologists, 2008) -
Prediction of the date of onset of phoma leaf spot epidemics on oilseed rape in the UK
Evans, Neal; Baierl, Andreas; Gladders, Peter; Hall, B.; Fitt, Bruce D.L. (IOBC, 2006)To reduce reliance on fungicides for control of oilseed rape diseases, Decision Support Systems (DSS) are being developed to target applications as part of an integrated disease management strategy. This paper reports on ... -
Preliminary evaluation of root disease of winter oilseed rape in the UK
Evans, Neal; Steed, J. M.; Fitt, Bruce D.L.; Norman, K.; Bryson, R.; Alford, J.; Cavell, P. (HGCA, 2003-03-01)During the 2000/1 season, significant variability in the senescence of oilseed rape (OSR) stems was observed in Velcourt-managed fields. These symptoms tend to occur more in the southern part of the country, i.e. Kent and ...