Geoffrey J. Denton

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Aquilegia is a popular garden plant in the northern hemisphere as well as a native plant in the UK and continental Europe. In 2000, Semiaquilegia adoxoides was found infected by downy mildew in Korea, and since 2013 there have been several confirmed records of a Peronospora sp. affecting Aquilegia in the UK, with symptomatic plants being observed several(More)
Phytophthora niederhauserii sp. nov., a polyphagous species associated with ornamentals, fruit trees and native plants in 13 countries Abstract: A non-papillate, heterothallic Phytophthora species first isolated in 2001 and subsequently from symptomatic roots, crowns and stems of 33 plant species in 25 unrelated botanical families from 13 countries is(More)
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