WAster yellows
WCandidatus Phytoplasma fraxini
WElsinoë ampelina
WHosta virus X
WPhytophthora cactorum
WPodosphaera macularis
WList of poinsettia diseases
WPseudomonas cichorii
WPseudomonas marginalis
WPseudomonas tomato
WPuccinia malvacearum
WPuccinia pelargonii-zonalis
WPuccinia thaliae
WPucciniastrum epilobii
WPycnostysanus azaleae
WRhodococcus fascians
WSchizothyrium pomi
WThielaviopsis basicola