Insect Profiles: Eastern Pineshoot Borer (Eucosma gloriola)
Introduction Eastern pineshoot borer (Eucosma gloriola), also known as the white pine tip moth, American pine shoot moth, white pine shoot borer, and Tordeuse americaine…
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Insect Profiles: Douglas-fir Beetle (Dendroctonus pseudotsugae)
Introduction Douglas-fir beetle (Dendroctotonus pseudotsugae) is a bark beetle that infests Douglas-fir. It is one of the most destructive pests of Douglas-fir. Outbreaks of Douglas-fir…
Tree Diseases: Hoof Fungus (Fomes fomentarius)
Introduction Fomes fomentarius, also referred to as hoof fungus, tinder fungus, horsehoof tinder fungus, horse fungus, false tinder fungus, tinder conk, tinder polypore, and ice…
Tree Diseases: Artist’s Conk (Ganoderma applanatum)
Introduction Artist’s conk (Ganoderma applanatum), also referred to as artist’s bracket, red mother fungus, Ancient Ling Zhi, and bear bread fungus, is a bracket fungus…
Tree Profiles: Ginkgo Cultivars, Part 2
This is the second of a two part series on ginkgo cultivars. Introduction Due to its striking foliage, general hardiness, and medicinal utility, the…
Tree Profiles: Ginkgo Cultivars, Part 1
This is the first of a two part series on ginkgo cultivars. Introduction Due to its striking foliage, general hardiness, and medicinal utility, the ginkgo…
Tree Profiles: Ginkgo, Part 2 (Ginkgo biloba)
This is the first of a two part series on the ginkgo tree. The following examines the tree’s root development, soil & topography, cultivation, damaging…
Tree Profiles: Ginkgo, Part 1 (Ginkgo biloba)
This is the first of a two part series on the ginkgo tree. The following examines the tree’s habitat, developmental traits, longevity, height, bark, leaves,…
Insect Profiles: Rosy Maple Moth (Dryocampa rubicunda)
Introduction Rosy maple moth (Dryocampa rubicunda) is a silk moth in the family Saturniidae. The moth is indigineous to North America. It is notable for…
Insect Profiles: Box Elder Bug (Boisea trivittata)
Introduction Box elder bug (Boisea trivittata) is a North American species of true bug in the family Rhopalidae. The insect is native to the western…
Insect Profiles: Asian Lady Beetle (Harmonia axyridis)
Introduction Asian lady beetle (Harmonia axyridis) is an exotic beetle in the family Coccinellidae. The insect is native to Asia, where it is widespread. In…
Insect Profiles: Tolype Moth (Tolype velleda)
Introduction Tolype moth (Tolype velleda), also called large tolype moth and velleda lappet moth, is a small to medium sized moth in the family Lasiocampidae.…
Tree Diseases: Scleroderris Canker of Conifers (Gremmeniella abietina-Sclreoderris lagerbergii)
Introduction Scleroderris canker is a fungal disease that affects various conifers. It is caused by the fungus Gremmeniella abietina-Sclreoderris lagerbergii. Scleroderris canker is one of…
Tree Diseases: Fire Blight
Introduction Fire blight is a significant disease of various fruit trees. It is one of the most common diseases to afflict fruit trees in spring…
Tree Diseases: Apple Scab
Introduction Apple scab is a fungal disease that commonly infects various apple and crabapple trees. It is recognized as one of the most significant diseases…
Tree Diseases: Cedar-Hawthorn Rust
Introduction Cedar-hawthorn rust is a fungal disease that commonly infects junipers and hawthorns. It is one of the most frequently observed plant diseases in spring…
Tree Diseases: Cedar-Quince Rust
Introduction Cedar-quince rust is a fungal disease that infects most varieties of eastern red cedar, as well as many other junipers, and alternative hosts. The…
Spring Tree Injuries: Spring Frosts
Introduction In certain geographic locations, temperatures may fluctuate in spring. When temperatures plummet below freezing, they can damage or kill exposed plants. Spring frosts affect…
Spring Tree Care Maintenance
Introduction As winter subsides, and warmer temperatures prevail, plants begin to break dormancy, signaling a changing of the seasons. Spring arrives, and landscapes are renewed,…
Tree Profiles: Douglas-fir Cultivars, Part 2
This is the second of a two part series on Douglas-fir cultivars. Introduction Since its introduction to cultivation in 1826, Douglas-fir has become one of…