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 of apples and crabapples. Apple…
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 and summer. The disease is…
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 disease is caused by the…
Tree Diseases: Brown Rot Blossom Blight (Monilia fruiticola)
Introduction Brown rot blossom blight is a fungal disease that infects a bevy of stone fruit trees. The disease is caused by the pathogen Monilia fruiticola. Monilia fruitocola invades susceptible…
Tree Diseases: Bacterial Leaf Spot
Introduction Bacterial leaf spot is a disease that affects various crops and ornamental plants. It is most often caused by the bacterial pathogens Pseudomonas spp. and Xanthomonas spp. The infectious…
Tree Diseases: Hypoxylon Canker of Oaks (Hypoxylon atropunctatum)
Introduction Hypoxylon canker of oaks is a fungal disease caused by the pathogen, Hypoxylon atropunctatum. The fungus infects weakened, injured, and dying wood on oak trees. The fungus generally infects…
Abiotic Disorders of Trees: Biological and Botanical Disorders
Introduction The genetic composition of a plant species is expressed through its physiological and morphological characteristics. Whether these characteristics are perceived as normal depends on the individual circumstances, and the…
Abiotic Disorders of Trees: Drought Stress and Heat Injury
Climate shifts and extreme temperatures present a slew of environmental challenges for trees. The following examines two of the most common heat related disorders, and recommended practices for mitigating their…
Cabling and Bracing in Trees — Part 2
This is the second half of a two part series on cabling and bracing. This article focuses on bracing, and what this support method entails. Cabling and bracing are practices…
Cabled tree limb example
Cabling and Bracing in Trees — Part 1
This is the first half of a two part series on cabling and bracing. This article will focus on cabling, and what this support method entails. As trees age, they…
