Technical reports

For several years, arborists and homeowners throughout California have observed symptoms of general decline in hedges…

Poison hemlock (Conium maculatum) is a nuisance plant that grows throughout the United States and Canada. Th…

Potassium deficiency is commonly observed in palm trees across landscapes in leached, sandy soils. It has been said t…

Attack from pathogens or stress from environmental conditions trigger natural defense mechanisms that exist in trees …

There are two fungal organisms, Microsphaera pulchra and Phyllactinia guttata, which cause powdery mildew on dogwoods…

Powdery mildew is a foliage disease, which occurs on virtually all species of ornamental plants. Rose, oak, hawthorn,…

The crape myrtle bark scale (CMBS) is an exotic pest that causes damage to crape myrtles. Since its arrival, several …

Growing bulbs, perennials, annuals or shrubs under the shade of a large tree can be a difficult task. All plants need…

El Boxwood blight es altamente contagioso y el patógeno del hongo puede ser lentamente esparcido atravez de he…

The presence of trees surrounding a residence contributes greatly to both the aesthetic and monetary value of the hom…