Pacific Northwest Plant Disease Management Handbook
Printed page URL:
https://pnwhandbooks.org/node/415
Plant Disease
Host and Disease Descriptions
Host and Disease Descriptions
Reviewed: March 2023
Peppermint (
Mentha
spp.)-Powdery Mildew
Peppermint and Spearmint (
Mentha
spp.)-Rust
Peppermint (
Mentha
spp.)-Spotted Wilt
Peppermint (
Mentha
spp.)-Stolon Decay and Canker
Peppermint (
Mentha
spp.)-Verticillium Wilt
Periwinkle
Petunia (
Petunia
spp.)-Black Root Rot
Petunia (
Petunia
spp.)-Botrytis Blight
Petunia (
Petunia
spp.)-Damping-off
Petunia (
Petunia
spp.)-Impatiens Necrotic Spot
Petunia (
Petunia
spp.)-Shoot Proliferation and Leafy Gall
Petunia (
Petunia
spp.)-Stem Rot
Petunia (
Petunia
spp.)-Viruses
Phlox-Black Root Rot
Phlox-Downy Mildew
Phlox-Nematode, Stem
Phlox-Powdery Mildew
Photinia-Fire Blight
Photinia-Leaf Spot
Photinia-Physiological Leaf Spot
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