Global InformationFiorinia externa information
| Fiorinia externa | |
|---|---|
| |
| A) underside of hemlock leaves infested by Fiorinia externa B) close up | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Sternorrhyncha |
| Family: | Diaspididae |
| Genus: | Fiorinia |
| Species: | F. externa
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| Binomial name | |
| Fiorinia externa Ferris, 1942[1]
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Fiorinia externa, the elongate hemlock scale was accidentally introduced into North America from Japan and is now established in most parts of the north-eastern U.S.[2] It has become a serious pest of hemlock (Tsuga) and some related conifers from the family Pinaceae. Dense colonies of the scale insect result in yellowing, shedding of leaves, dieback and occasional tree death.[3]
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