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The importance of asymptomatic infection in sustainable crop protection
(2013-08)
Scald or Rhynchosporium, caused by the fungus Rhynchosporium commune, is difficult to control with fungicides and severe epidemics may appear suddenly. Its epidemiology is not well understood as it is based on disease ...
The potential of temperature gradient plates to measure temperature response in fungal pathogens
(2013-08)
Temperature response curves have been studied for a wide variety of processes in an extensive number of organisms. The temperature response of growth in fungi, however, has rarely been studied across a wide range of ...
Pathogenicity of leptosphaeria maculans isolates obtained from brassica napus (oilseed rape) cultivars with the rlm7 resistance gene
(2013-08)
Isolates obtained from winter oilseed rape cultivars with the resistance gene Rlm7 were examined for their pathogenicity by inoculation onto cotyledons and true leaves of the susceptible cultivar Drakkar (no R gene) and ...
Epidemiology and spread of Leptosphaeria species (phoma stem canker) on brassicas
(2013-08)
Leptosphaeria maculans and L. biglobosa, cause of phoma stem canker disease of brassicas, are related pathogens of brassicas that were originally considered as one species but occupy slightly different ecological niches ...
Leptosphaeria spp. and Phoma stem canker on oilseed rape in China
(2013-08)
In China, the incidence of phoma stem canker observed in pre-harvest surveys from 2005 to 2012 was greater on winter oilseed rape in provinces along the Yangtze River (in May) than on spring oilseed rape in north China (in ...
Climate change increases risk of fusarium ear blight on wheat in central China
(2013-08)
In this work, a logistic weather-based regression model for estimating incidence of wheat fusarium ear blight in central China was developed, using up to 10 years of disease, anthesis date and weather data available for ...
Comparative epidemiology of Leptosphaeria maculans and L. biglobosa on oilseed rape in the UK
(2013-08)
Phoma stem canker is a major disease problem on winter oilseed rape (Brassica napus) in the UK. The disease is caused by two closely related species, Leptosphaeria maculans and L. biglobosa. Previous epidemiology work has ...
Geographic variation in Leptosphaeria maculans (phoma stem canker of oilseed rape) populations in the UK
(2013-08)
Major resistance (R) gene-mediated resistance against Leptosphaeria maculans is associated with a gene-forgene interaction in which the product of a pathogen effector (Avr) gene is recognised by the product of a host R ...
Pathogenicity of Leptosphaeria biglobosa to oilseed rape (Brassica napus) cultivars differing in resistance against Leptosphaeria maculans
(2013-08)
Field and controlled environment experiments were done to examine the pathogenicity of L. biglobosa on cultivars with good resistance (carrying the Rlm7 gene) or moderate resistance (carrying the Rlm4 gene) against L. ...
Effects of host resistance on maturation of pseudothecia of Leptosphaeria maculans and L. biglobosa (cause of Phoma stem canker) in Brassica napus (oilseed rape)
(2013-08)
The stem canker epidemics are initiated in autumn by air-borne ascospores produced in pseudothecia on infected crop debris from previous crops. This study aimed to investigate the effects of cultivar resistance and ...