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Phenotypic and genotypic diversity of Phytophthora infestans populations in Scotland (1995–97)
TLDR
Many factors point to an A2 population restricted by its sensitivity to phenylamides, but the presence of mixed mating type samples, an increasing frequency of isolates of intermediate metalaxyl resistance and the extent of the AFLP diversity suggest occasional sexual recombination, and thus gene flow, between groups.
Effect of temperature on the transmission of Potato mop‐top virus from seed tuber and by its vector, Spongospora subterranea
TLDR
Investigation of the effect of temperature during plant growth on the transmission of PMTV from infected seed tubers and from infested growing media demonstrates that infection of roots can occur at a higher temperature than that for powdery scab on tuber and that this root infection can enable the transmissionof PMTV into the potato plant.
Fungi Causing Dry Tuber Rots of Seed Potatoes in Storage in Scotland
TLDR
The various changes in pathogen prevalence and isolate sensitivity to fungicides recorded in this study highlight the need for regular monitoring programmes to be conducted in order that disease-control strategies can remain effective.
The Effect of a Dominant Phytophthora infestans Genotype (13_A2) in Great Britain on Host Resistance to Foliar Late Blight in Commercial Potato Cultivars
TLDR
Publishing resistance ratings have been revised as a result of this study because changes in resistance rating were specifically associated with the use of the 13_A2 genotype to inoculate the trials from 2008 onwards.
Foliar Symptoms Caused by Potato mop-top virus on Potato Plants During Vegetative Propagation in Scotland and Their Association With Tuber Yield, Spraing and Tuber Infection
TLDR
The results indicate that roguing plants with foliar symptoms in seed potato crops could achieve an improvement in crop health but might be impractical when diseased plants are too prevalent.
Detection of Colletotrichum coccodes and Helminthosporium solani in soils by bioassay
TLDR
The sensitivity of a bioassay in detecting soil inoculum of Colletotrichum coccodes and Helminthosporium solani was examined using potato minitubers and microplants, and the bioassays appeared to be more sensitive with naturally infested soils.
The occurrence of thiabendazole‐resistant isolates of Polyscytalum pustulans and Helminthosporium solani on seed potato tubers in relation to fungicide treatment and storage
Tubers infected with thiabendazole-sensitive isolates of Polyscytalum pustulans and Helminthosporium solani were treated annually for 4 years with benomyl, thiabendazole or a formulated mixture of
Stability and variability of virulence of Phytophthora infestans assessed in a ring test across European laboratories
TLDR
A high level of consensus in the determination of virulence/avirulence to R1, R3, R4, R7, R8, R10 and R11 was achieved among the collaborators, showing that the protocol could be robustly applied across a range of laboratories, and indicates that creating reliable core collections of pathogen isolates with known virulences could be difficult.
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