Thinking about English oak (Quercus robur) brings to mind Robin Hood and Sherwood Forest. This majestic oak forms a broad spreading crown supported by a short sturdy trunk with a medium-brown, deeply-fissured bark (USDA hardiness zones 4-8). A young tree exhibits a pyramidal form. In a city park or golf course, it typically grows 50-70 […]
Archive for the ‘Powdery mildew’ Category
English Oak Demands A Moist Well-drained Soil
Posted by Hugh on August 27th, 2014
Posted in acidic soil, alkaline soil, Aphids, Caterpillars, Edible fruits, Fruits poisonous, Large Shade trees, Oaks (Quercus spp.), Planting tips, Powdery mildew, Propagation (Seed), Soil drainage, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Trees & Shrubs, watering tips, Wildlife attractant, winter hardiness 
Comments Off on English Oak Demands A Moist Well-drained SoilCrape Myrtle Diseases And Pests
Posted by Hugh on July 23rd, 2014
Not all crape myrtle cultivars are alike. Some are more susceptible to diseases and insect pests more than others. Overall, the U.S. National Arboretum (USNA) hybrid crapemyrtles are more disease and insect resistant, but not to all problems. Some cultivars are susceptible to aphids, usually in the spring. Their sugary excretions over leaves and stems […]
Posted in Cercopora leaf spot, compact shrub, compact tree, Crape myrtle (Lagerstroemia), Disease prone, Disease resistant, Insect (Pest) Problems, Japanese beetles, Pesticide recommendations, Powdery mildew, Southern Appalachian Region, Summer flowering, Trees & Shrubs Comments Off on Crape Myrtle Diseases And Pests
