Hamamelistes betulinus
Birch blister aphid
Insects
Harmandiola tremulae
Gall midge Harmandiola tremulae
Insects
Harmonia axyridis
Harlequin ladybird
Insects
Hartigiola annulipes
Hairy beech gall
Insects
Heat, drought and bark burn
Heat, drought and bark burn
Other
Helianthus tuberosus
Jerusalem artichoke
Other
Hemichroa australis
Sawfly Hemichroa australis
Insects
Hemichroa crocea
Striped alder sawly
Insects
Heracleum mantagazzianum
Giant Hogweed
Other
Herpotrichia nigra
Herpotrichia nigra
Fungi
Heterobasidion annosum
Annosum root rot
Fungi
Hyalopterus pruni
Insects
Total: 26