First report of shoot blight and dieback caused by Diplodia pinea on Pinus pinaster and P. radiata trees in Tunisia

B.T. Linaldeddu, F.S. Hasnaoui, A. Franceschini

Abstract


Damage caused by Diplodia pinea on Pinus pinaster and P. radiata forests are reported for the fi rst time in Tunisia. The affected plants show shoot blight, canker and branch dieback. On decaying and dead branches pycnidia of D. pinea are observed. The fungus was repeatedly isolated from the bark of symptomatic branches. The results of pathogenicity tests confirm the virulence of D. pinea and the susceptibility of both Pinus species to infection.

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DOI: http://dx.doi.org/10.14601/Phytopathol_Mediterr-2729



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