Any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally.

synonyms: blister rust, white pine blister rust.

Polish: rdza kory wejmutki, obwar wejmutkowo-porzeczkowy, rdza pęcherzykowata sosny wejmutki, rdza wejmutkowo-porzeczkowa