%0 Conference Paper %B CAPER 2000, 11-13th April %D 2000 %T Reinvasion of urban areas by black spot and tar spot %A Jarraud, N.S. %A Bell, J.N. %A Leith, I.D. %A Fowler, D. %A Archer, S.A.A. %B CAPER 2000, 11-13th April %C Birmingham