01249nas a2200169 4500008004100000022001400041245007500055210006900130260002900199300001400228490000700242520072300249100001700972700001500989700001801004856005701022 1993 eng d a1365-305900aEvidence for Phytophthora cinnamomi involvement in Iberian oak decline0 aEvidence for Phytophthora cinnamomi involvement in Iberian oak d bBlackwell Publishing Ltd a140–1450 v423 a
Rapid and sometimes extensive mortality and decline of oak, principally Quercus suber and Q. ilex, has occurred in parts of southern Spain and Portugal in recent decades. We report here isolation of the aggressive root pathogen Phytophthora cinnamomi from roots of diseased oaks or from soil at eleven out of thirteen decline foci examined. It is proposed that the introduction and spread of P. cinnamomi may be a major factor in the Iberian oak decline, interacting with drought and other site factors, and leading to stress-related attacks by insects and other fungi. By analogy, it may also be involved in the similar oak declines occurring elsewhere on the Mediterranean.
1 aBrasier, C M1 aRobredo, F1 aFerraz, J F P uhttp://dx.doi.org/10.1111/j.1365-3059.1993.tb01482.x