Juniper Archives
Insects and diseases that can affect Juniper (Juniperus).
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Bagworms
Bagworm is a caterpillar that molts into a moth in the adult stage. They are easiest to identify by the bags they construct as they feed. Damage includes needle discoloration and injury.
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Bark Beetle
Bark beetles, family Scolytidae, are common pests of conifers (such as pines, Arborvitae, Fir, Juniper, Leyland Cypress) and some attack broadleaf trees. Over 600 species occurring the United States and Canada with approximately 200 in California alone. The most common species infesting pines in urban landscapes
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Cedar Apple & Cedar Hawthorn Rust
Cedar-apple rust and closely related diseases, cedar-quince, cedar, hawthorn, and Japanese apple rusts are caused by fungi of the genus Gymnosporangium.
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Juniper Diseases
An overview of Juniper diseases including cedar-apple rust, cercospora blight and more.
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Juniper Scale
The juniper scale, native to Europe, is now distributed throughout the United States. This armored scale insect occasionally becomes a…
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Juniper Twig Blight
Junipers (Juniperus sp.), also known as red cedars are susceptible to a disease that results in the death of twig…
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Spruce Spider Mite
The Spruce Spider Mite is considered one of the most destructive spider mites in the United States.