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Browsing by Author "Ritchie, Faye"
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Chemical warfare: the fungal quest to conquer oilseed rape
Fortune, James; Baker, Daniel; Stanley, James; Karandeni Dewage, Chinthani Shanika; Ritchie, Faye; Fitt, Bruce; Huang, Yongju (AFCP, 2021-06-16) -
Co‐inoculation timing affects the interspecific interactions between phoma stem canker pathogens Leptosphaeria maculans and Leptosphaeria biglobosa : Co-inoculation timing affects interspecific interactions
Bingol, Evren; Qi, Aiming; Karandeni‐Dewage, Chinthani; Ritchie, Faye; Fitt, Bruce D. L.; Huang, Yong‐Ju (2024-03-30)BACKGROUND: Phoma stem canker is an economically important disease of oilseed rape, caused by two co-existing fungal pathogen species, Leptosphaeria maculans (Plenodomus lingam) and Leptosphaeria biglobosa (Plenodomus ... -
Effects of a penthiopyrad and picoxystrobin fungicide mixtureon phoma stem canker (Leptosphaeria spp.) on UK winteroilseed rape
Sewell, Thomas; Moloney, Steven; Ashworth, Mike; Ritchie, Faye; Mashanova, Alla; Huang, Yongju; Stotz, Henrik; Fitt, Bruce (2016-07-01)In the UK, fungicides are often used to controlphoma stem canker on winter oilseed rape. Field trialswere established near Boxworth, Cambridgeshire for fourcropping seasons (2011/2012, 2012/2013, 2013/2014 and2014/15) to ... -
Effects of cultivar resistance and fungicide application on stem canker of oilseed rape (Brassica napus) and potential interseasonal transmission of Leptosphaeria spp. inoculum
Fortune, James A.; Qi, Aiming; Ritchie, Faye; Karandeni Dewage, Chinthani Shanika; Fitt, Bruce; Huang, Yongju (2021-12)Phoma stem canker is a damaging disease of oilseed rape (Brassica napus) that causesannual yield losses to UK oilseed rape growers worth approximately £100 million,despite the use of fungicides. In the UK, oilseed rape is ... -
Effects of different fungicides on the severity of phoma stem canker
Sewell, Thomas; Huang, Yongju; Stotz, Henrik; Ashworth, Mike; Walker, Philip; Ritchie, Faye; Fitt, Bruce D.L. (2014)Phoma stem canker, a disease of oilseed rape (Brassica napus) caused by sibling pathogens Leptosphaeria maculans and L. biglobosa. Both pathogens follow a monocylic disease cycle that causes leaf spotting in autumn/winter ... -
Effects of plant age and inoculum concentration on light leaf spot disease phenotypes on oilseed rape
Sapelli, Laura; Karandeni Dewage, Chinthani Shanika; Ritchie, Faye; Fitt, Bruce; Huang, Yongju (2021-06-16)Light leaf spot is caused by the fungal pathogen Pyrenopeziza brassicae and is the mosteconomically damaging disease of oilseed rape (Brassica napus) in the UK. Current controlrelies on repeated fungicide applications; ... -
Inter-individual genetic variation in the temperature response of Leptosphaeria species pathogenic on oilseed rape
Fitt, Bruce; Newbery, Fay; Shaw, Michael; Ritchie, Faye; Gladders, Peter (2020-10-01)It is important to understand the likely response of plant pathogens to increased temperatures due to anthropogenic climate change. This includes evolutionary change due to selection on genetically based variation in growth ... -
Investigation of molecular mechanisms associated with fungicide sensitivity in Irish Pyrenopeziza brassicae populations
Fitt, Bruce; Huang, Yongju; Bucur, Diana; Ritchie, Faye; Kildea, Stephen (2020-02-25)Light leaf spot is amongst the most damaging diseases of oilseed rape and a significant threat to Irish crops. Unfortunately, the epidemiology of Pyrenopeziza brassicae, the agent causing this disease, remains poorly ... -
Leptosphaeria biglobosa inhibits the production of sirodesmin PL by L. maculans
Fortune, James; Bingol, Evren; Qi, Aiming; Baker, Daniel; Ritchie, Faye; Karandeni Dewage, Chinthani Shanika; Fitt, Bruce; Huang, Yongju (2022-11-29)BACKGROUND: Phoma stem canker is caused by two coexisting pathogens, Leptosphaeria maculans and L. biglobosa. They coexist because of their temporal and spatial separations, which are associated with the differences in ... -
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. ...