Powdery mildews are serious fungal leaf diseases infecting many garden plants. Each one is host specific. The powdery mildew that attacks summer phlox does not infect zinnias or pumpkin vines. Powdery mildew disease on crape myrtles does not attack lilacs or roses. In recent years new powdery mildew diseases have popped up on dogwoods and […]
Archive for the ‘Disease prone’ Category
Preventing Powdery Mildew Disease On Summer Plants
Posted by Hugh on May 18th, 2014
Posted in Crabapple, Crape myrtle (Lagerstroemia), Disease prone, Disease resistant, Dogwood (Cornus), Garden Problems, Irrigation, Lilac (Syringa), Monarda (Beebalm), Peony, Perennials, Phlox, Powdery Mildew, Southern Appalachian Region, Summer flowering, Trees & Shrubs, watering tips, Zinnia 
Comments Off on Preventing Powdery Mildew Disease On Summer PlantsBeautiful Giant Dogwood Has Some Limitations
Posted by Hugh on March 28th, 2014
Giant dogwood (Cornus controversa) is a medium-sized deciduous tree that grows to 35 to 40 feet high (in the wild to 60 feet) in USDA hardiness zones 5 to 7. This Asian native (China and Japan) is cherished for its distinctive horizontal (tiered) branching habit. Giant dogwood prefers an acidic, organically rich, moisture, well-drained soil. […]
Posted in acidic soil, Attracting birds, Bee Favorite, Butterflies, Deer resistant, Disease prone, Dogwood (Cornus), Flowering, Insect (Pest) Problems, Medium sized Tree, Planting tips, Soil drainage, Southern Appalachian Region, Spring flowering, winter hardiness Comments Off on Beautiful Giant Dogwood Has Some Limitations“Death By Mower” Disease
Posted by Hugh on January 22nd, 2014
“Mower disease” is a totally preventable human malady caused by permitting lawn grasses and weeds from growing near the crown of trees and shrubs. The problem is commonly seen on large properties such as church grounds, cemeteries and public parks. Large gang mowing machines (with many reels) cut 95-98% of the turf area. Workers follow […]
Posted in Disease prone, Dogwood (Cornus), Garden Problems, Insect (Pest) Problems, Mowing, mulching, mulching trees, Pruning, Weeds, Weeds, winter injury Comments Off on “Death By Mower” DiseaseRenewal Pruning Is An Easy Technique To Learn
Posted by Hugh on November 16th, 2013
Renewal pruning is the practice of severely cutting back selected shrubs and trees. The task is simple. There are no books to read. Select a day from mid-February to early April (USDA hardiness zones 5-7). Cutback the entire shrub(s), leaving 3-5 inch tall cut stems or stubble. The cut stems will bud out in the […]
Posted in Aggressive grower, Blue mist (Caryopteris), Buddleia (Butterfly bush), Crape myrtle (Lagerstroemia), Disease prone, Honeysuckle (Lonicera), Hydrangeas, Insect (Pest) Problems, Pruning, Rhododendrons, Southern Appalachian Region, Trees & Shrubs Comments Off on Renewal Pruning Is An Easy Technique To LearnFungus In A Lawn A Natural Phenomena
Posted by Hugh on August 11th, 2013
White or brown colored mushrooms are the visible reproductive (fruiting) structures of some types of fungi. An umbrella-shaped fruiting body is the most common form, but mushrooms come in many shapes, sizes, and colors. Most people call them mushrooms, toadstools, or puffballs. Mushrooms are the reproductive stage of fungi and their spores are “seed”, the […]
Posted in Disease prone, Fertilizing, Lawn Care, Mulch Quality, mulching, Mushrooms, plant nutrition, Soil drainage, Thatch management Comments Off on Fungus In A Lawn A Natural PhenomenaPest Alert: Inspect All Garden Roses For Rose Rosette
Posted by Hugh on August 9th, 2013
Rose rosette is a serious virus disease of roses (Rosa spp.). Over the past 3 years ago gardeners have experienced losses of popular shrub roses. The disease continues to gain ground across the U.S. Rose nurseries are working feverishly to find a solution. Landscapers and gardeners should inspect all garden roses, including hybrid tea, grandiflora, […]
Posted in Disease prone, Planting tips, Pruning, rose rosette disease, Roses, Southern Appalachian Region, Trees & Shrubs, Virus diseases Comments Off on Pest Alert: Inspect All Garden Roses For Rose RosetteTroubled Pines… And Some Good Ones To Grow
Posted by Hugh on July 12th, 2013
Mugho, aka mugo pine (Pinus mugo), and Scots pine (P. sylvestris) are two troubled pines which gardeners in the Southern Appalachian region (USDA Hardiness zones 6 and 7) have shied away from planting. Both have become problem growers over the past quarter century. Scots pine suffers from several devastating foliar diseases. Once a popular Christmas […]
Posted in Christmas tree, Disease prone, Disease resistant, Evergreens, Firs (Abies), Fraser fir (Abies), Garden Problems, Mugo pine (Pinus mugo), Pine (Pinus spp.), Pines (Pinus spp.), Planting tips, Southern Appalachian Region, Trees & Shrubs, winter hardiness Comments Off on Troubled Pines… And Some Good Ones To GrowSummer Chocolate™ Mimosa Tree Worth A Try
Posted by Hugh on June 12th, 2013
Mimosa tree (Albizia julibrissin) is treasured as a four month landscape tree for its tropical-like foliage and flowering. This small deciduous tree grows 20 to 25 feet tall and its horizontal branching reaches out widely. Mimosa leafs out in late May with lush green, tropical-looking pinnately compound foliage and growth is very rapid. From mid-June […]
Posted in acidic soil, Aggressive grower, alkaline soil, Attracting birds, Bee Favorite, Butterflies, Disease prone, Drought tolerant, Fragrant, Heat Tolerance, Hummingbird, Landscape ideas, plant nutrition, Pruning, Soil Conservation, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Trees & Shrubs, winter hardiness Comments Off on Summer Chocolate™ Mimosa Tree Worth A TryPest Alert – Gardeners Should Avoid Planting Garden Impatiens
Posted by Hugh on May 23rd, 2013
Downy mildew in impatiens (Plasmopara obducens) infects garden impatiens, double impatiens and balsam. However, New Guinea impatiens, SunPatiens™, and most annual summer flowering plants are not susceptible. Impatiens are the favorite flowering annual used in shady garden areas. Double impatiens and balsam are favorites in hanging pots and other types of containers. U.S. greenhouse growers […]
Posted in Disease prone, Disease resistant, Disease resistant, Downy mildew, Flowers, Garden Problems, Impatiens, New Guinea impatiens, Southern Appalachian Region, Summer flowering, Sunpatiens, Torenia (wishbone flw.) Comments Off on Pest Alert – Gardeners Should Avoid Planting Garden ImpatiensSnow Fountains® Weeping Cherry Fits Small Gardens
Posted by Hugh on April 30th, 2013
Snow Fountains® (Prunus x ‘Snofozam’) is a slow-growing, weeping ornamental cherry that grows compact. It develops into a 8 to 15 feet tall and 5 to 12 feet wide tree. This cultivar is also listed as ‘White Fountains’ in some nursery catalogs. The cascading branches flow downward or may take on a green mound form. […]
Posted in acidic soil, Attracting birds, Bee Favorite, Butterflies, compact tree, Disease prone, Hummingbird, Insect (Pest) Problems, Ornamental cherry (Prunus), Planting tips, Southern Appalachian Region, Spring flowering, Trees & Shrubs, watering tips, Weeping habit, winter hardiness Comments Off on Snow Fountains® Weeping Cherry Fits Small Gardens
