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Browsing by Author "Karandeni Dewage, Chinthani Shanika"
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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) -
Current understanding of phoma stem canker and light leaf spot on oilseed rape in the UK
Huang, Yongju; Karandeni Dewage, Chinthani Shanika; Fitt, Bruce (University of Hertfordshire Press, 2021-06-16)Oilseed rape is the third most important arable crop in the UK. Phoma stem cankerand light leaf spot are two economically important diseases of this crop. These twodiseases cause annual yield losses of winter oilseed rape ... -
Disease management in oilseed rape: insights into the Brassica napus-Pyrenopeziza brassicae pathosystem
Karandeni Dewage, Chinthani Shanika; Qi, Aiming; Stotz, Henrik; Huang, Yongju; Fitt, Bruce (AFCP, 2021-06-16) -
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 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; ... -
Host pathogen interactions in relation to management of light leaf spot disease (caused by Pyrenopeziza brassicae) on Brassica species
Karandeni Dewage, Chinthani Shanika; Klöppel, Coretta A.; Stotz, Henrik U.; Fitt, Bruce D. L. (2017)Light leaf spot, caused by Pyrenopeziza brassicae, is currently the most damaging disease problem in oilseed rape in the UK. According to recent survey data, the severity of epidemics has increased progressively across the ... -
Importance of Leptosphaeria biglobosa as a cause of phoma stem canker on winter oilseed rape in the UK
Fitt, Bruce; Huang, Yongju; Karandeni Dewage, Chinthani Shanika (2014-11-25)Phoma stem canker is a major disease of oilseed rape in the UK, leading to annual yield losses worth more than £100M. The disease is caused by two closely related species, Leptosphaeria maculans and L. biglobosa. L. maculans ... -
Improved understanding of novel sources of resistance against the light leaf spot pathogen, Pyrenopeziza brassicae
Karandeni Dewage, Chinthani Shanika; Wijerathna, Kavithra Jayani; Stotz, Henrik U.; Fitt, Bruce D. L. (The Association of Applied Biologists, 2017-02-28)In this work, the endophytic growth phase of the light leaf spot pathogen Pyrenopeziza brassicae in selected lines from a doubled haploid (DH) population of oilseed rape, which is known to segregate for resistance against ... -
Interactions in the Brassica napus-Pyrenopeziza brassicae pathosystem and sources of resistance to P. brassicae (light leaf spot)
Karandeni Dewage, Chinthani Shanika; Qi, Aiming; Stotz, Henrik U.; Huang, Yongju; Fitt, Bruce D. L. (2021-08-24)Pyrenopeziza brassicae, cause of light leaf spot (LLS), is an important pathogen of oilseed rape and vegetable brassicas and has a wide geographic distribution. Exploitation of host resistance remains the most sustainable ... -
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 ... -
QTL mapping for resistance against Pyrenopeziza brassicae derived from a Brassica napus secondary gene pool
Karandeni Dewage, Chinthani Shanika; Cools, Katherine; Stotz, Henrik; Qi, Aiming; Huang, Yongju; Wells, Rachel; Fitt, Bruce (2022-02-04)Use of host resistance is the most economical and environmentally safe way to control light leaf spot disease of oilseed rape (Brassica napus). The causal organism of light leaf spot, Pyrenopeziza brassicae, is one of the ...