File: pero09.jpg Hi-Res Size: 358,056 Med-Res Size: 33,333 Donor: W.K. Kast Desc: Attack on stems	File: pero11.jpg Hi-Res Size: 120,857 Med-Res Size: 22,067 Donor: W.K. Kast Desc: Sporangiophores on lower side of leaf	File: pero14.jpg Hi-Res Size: 229,574 Med-Res Size: 36,501 Donor: W.K. Kast Desc: Early oilspot symptoms
File: pero20.jpg Hi-Res Size: 164,841 Med-Res Size: 28,063 Donor: W.K. Kast Desc: Oilspot early symptoms