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
Holly (
Ilex
spp.)-Boron Deficiency
Holly (
Ilex
spp.)-Green Algae
Holly (
Ilex
spp.)-Leaf Spots
Holly (
Ilex
spp.)-Phytophthora Leaf and Twig Blight
Holly (
Ilex
spp.)-Phytophthora Root Rot
Holly (
Ilex
spp.)-Red Leaf Spotting
Holly (
Ilex
spp.)-Scab
Holly (
Ilex
spp.)-Sooty Mold
Hollyhock (
Alcea rosea
)-Rust
Honey Locust (
Gleditsia
spp.)-Canker
Honey Locust (
Gleditsia
spp.)-Powdery Mildew
Honeysuckle (
Lonicera
spp.)-Powdery Mildew
Honeysuckle (
Lonicera
spp.)-Root Rot
Honeysuckle (
Lonicera
spp.)-Yellow Vein
Hop (
Humulus lupulus
)-Abiotic Wilt
Hop (
Humulus lupulus
)-Black Root Rot
Hop (
Humulus lupulus
)-Cone Tip Blight
Hop (
Humulus lupulus
)-Downy Mildew
Hop (
Humulus lupulus
)-Fusarium Canker (Wilt)
Hop (
Humulus lupulus
)-Nematode, Cyst
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