Tree Diseases: Pine-Oak Gall Rust
Introduction Pine-oak gall rust, also referred to as eastern gall rust, is a fungal disease that affects various pine and oak trees. The disease is native to North America. It…
Tree Diseases: Pine-Pine Gall Rust
Introduction Pine-pine gall rust, also referred to as western gall rust, and Woodgate gall rust, is a fungal disease that infects two and three needle pine trees. It is caused…
Tree Diseases: Lophodermium Needle Cast
Introduction Lophodermium needle cast is a fungal disease that affects two and three needled pines, as well as some five needled pines. The disease is caused by the fungus, Lophodermium…
Tree Diseases: Annosum Root Rot
Introduction Annosum root rot, also referred to as annosus root rot, is a fungal disease of pine, spruce, and fir trees. The causal agent of the disease is the fungus,…
Tree Diseases: Rhizosphaera Needle Cast
Introduction Rhizosphaera needle cast is a fungal disease that affects many spruce trees, particularly Colorado blue spruce, and Engelmann spruce. The causal agent of the disease is the fungus, Rhizosphaera…
Summer Tree Care: Identifying Common Tree Insects in Summer, Part 1
This is the first part of a series on summer tree insects. This article examines ailanthus webworm, Asian long-horned beetle, and bagworm. Introduction As spring transitions into summer, temperatures gradually…
Spring Tree Care: Identifying Common Tree Diseases in Spring, Part 8
This is the final part of a series on spring tree diseases. This article examines oak wilt. Introduction In spring, as the growing season commences, trees become vulnerable to infection…
Spring Tree Care: Identifying Common Tree Diseases in Spring, Part 7
This is the seventh part of a series on spring tree diseases. This article examines maple tar spot, and Rhizosphaera needle cast. Introduction In spring, as the growing season commences,…
Spring Tree Care: Identifying Common Tree Diseases in Spring, Part 6
This is the sixth part of a series on spring tree diseases. This article examines holly leaf spot, and hoof fungus. Introduction In spring, as the growing season commences, trees…
Spring Tree Care: Identifying Common Tree Diseases in Spring, Part 3
This is the third part of a series on spring tree diseases. This article examines brown rot blossom blight, and cedar-apple rust. Introduction In spring, as the growing season commences,…
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