National Turf Evaluation Program and the Southeast

Crabapple LandscapExperts provide the cutting edge of lawn care and turf information for our commercial and residential customers. Some of the research available is available through Executive Director Kevin Morris of the National Turfgrass Evaluation Program, that regularly publishes the results of the National Turf Evaluation Program NTEP.  The entire report (including data)on Tall Fescue is available, while data fromprevious trials is also available.  

UGA Turf Specialists run turfgrass trials at the Griffin, Georgia Experiment Station and contribute their data to the final evaluation from the Georgia perspective. Specific to the metro-Atlanta area that Crabapple covers, fescue varieties Rhambler and Monet were designated top performers for Georgia and earned top honors for the southeast.

Crabapple Landscape Experts consider many aspects of turf grass varieties evaluated in the NTEP Guide to Quality : 

Genetic Color 

Winter Color

Seasonal Color and Color Retention

Spring Greenup

Leaf Texture (leaf width from coarse to fine)  

Density of the turf (plants and tillers or sideshoots)

Living Ground Cover (spread during the growing season)

Seedling Vigor/Establishment  

Resistance to Disease or Insect Damage

Quality under shade   

Traffic Tolerance /Compaction  

 Drought Tolerance  

Thatch Accumulation

Sod Strength

Mowing Quality or “Steminess”  

Seedheads  

Resistance to Poa Annua Invasion

Frost Tolerance or Winter Kill

To discuss renovating the turf on properties you manage, contact your Crabapple LandscapExpert Rep at 770-740-9739. 

4 Types of Hydrangeas

Mophead type Hydrangea

CrabappleLandscapExperts use these four types of Hydrangeas as easy-care flowering deciduous shrubs for shade or partial sun. The botanical name, Hydrangea, is based on "Hydro" meaning water, giving an indication that these woody ornamentals prefer moist soils. The LandscapExperts plant them where there is enough moisture in the soil that they will thrive.

Lace Cap

 Bigleaf a.k.a. Macrophylla Hydrangea

These are the familiar pink- or blue- flowered, deciduous shrubs that most people grew up with, and that tolerate shade and still flower profusely. They can be divided into 

• Mophead composed of all sterile florets that look like balls, or 
• Lacecap, a flatter style, which have an outer rim of sterile florets while the centers are composed of tiny fertile flowers (like an old fashioned lady’s lace cap). Bigleaf Hydrangeas are great as cut flowers or dried for autumn arrangements.   

Hydrangea arbroescens

 Arborescens  a.k.a. Annabelle Hydrangea

Native to North America, Annabelle Hydrangeas are large shrubs with huge, flat white flower heads to 10” in diameter. They are hardy and bloom in cold or hot areas, and so  easy to prune they are sometimes used as hedges.

Vanilla Strawberry variety

PeeGee  Hydrangea

P.G. stands for “paniculata Grandiflora” also large shrubs but with cone-like or panicle-shaped blooms. Limelight is a popular cultivar, with strong stems and blooms opening chartreuse and finishing white. Vanilla Strawberry is a yummy new cultivar with white cones changing to a compelling strawberry pink, although it remains to be seen whether or not the branches are strong enough to hold up the flower heads.  

Fall color, Oakleaf Hydrangea*

Oak leaf Hydrangea

Our favorite hydrangea is the native Oakleaf known as quercifolia (after Quercus for oak) known for  four seasons of beauty!  Oakleaf hydrangea leaves are notched and loosely resemble oak leaves; they are a leathery green in summer but turn brilliant red or deep maroon in autumn. In winter after the leaves fall, the bark exfoliates or peels in cinnamon strips; in spring, the new growth is silvery green.  The large white cones ornament the shrubs in summer, double or single white, then turning a soft pink and finally then fading to a rusty rose. 

This versatile genus provides many options for today's landscapes. Look for our upcoming About.com gardening video about these 4 types of Hydrangeas. 

 * oakleaf hydrangea leaves photo thanks to Peggy Singlemann, Maymont blog  

Steel Edging of Landscape Surfaces, Part 2

Unobtrusive steel edging strip between path and bed

Although the typical property manager or resident may not realize just why a Crabapple landscape looks so great, our crisp edging of lawns, paths, gardens and flower beds plays a big role in maintaining the desirable tailored look.  One method of edging is Trench Edging or Air Root Pruning.  

Another edging option we recommend is mechanical metal edging. 

Steel edging provides a lasting landscape edge for commercial and residential projects, ideal because of its strength, durability and flexibility.  The steel edge that defines the interface between landscape surfaces helps in mowing and creates a well-groomed, well-defined look along the borders.

Benefits of Steel Edging

• Clean lines 
• Minimal intrusion 
• Will not rot, chip or become brittle in cold weather 
• Withstands routine landscape maintenance with its uniform thickness and weight 
• Protects trees from “string trimmer and lawnmower blight” 
• Installs quickly and easily, for straight runs or curves 
• Keeps disparate materials like pebble paths and pine straw beds separated

Brick edging for turf

Another method of mechanical edging is by the use of bricks set in mortar to provide a mowing edge. Consult your Crabapple Rep to discuss this type of feature.

Our LandscapExperts wear protective footwear and eye protection, and follow the manufacturers’ safety instructions. Crabapple LandscapExperts has a great safety record of working smart and efficiently for you.  

Eliminating Stinging Fire Ants

Fire Ant, UGA Center for Urban Ag

After the heavy rains metro-Atlanta landscapes enjoyed, Crabapple LandscapExperts are finding that fire ants are surging to the surface with mounds that look like volcanoes of brown sugar and that destroy both the comfort and smoothness of a fine lawn.

Death to Fire Ants

The culprit is the imported red fire ant, Solenopsis invicta, a potent pest in the properties you manage. Fire ant colonies affect the smoothness of turfgrass, and invade gardens, compost piles and even buildings and homes. Fire ants have a painful sting and when a colony is disturbed, hundreds of ants swarm out of the nest to attack the offending child or pet, causing multiple bites that burn like stings and are followed by an itchy rash.

IFA Range of Infestation-ARS USDA.gov

Persistence is Key to Fire Ant Extermination  

At right, fire ants infest the southern U.S. (pink) and potentially threaten the far west (green). Fire ant extermination is not a one-time treatment, but a consistent, planned control program that takes diligence and determination on the part of the LandscapExperts Team at Crabapple.

Apply Now

The best time to apply fire ant control is after a heavy rain and in spring or fall when queen and brood are close to the surface and worker ants are actively foraging for food. Crabapple recommends a two-phase method ofcontrol endorsed by the University of Georgia and by agricultural colleges across the country. At Texas A & M, this follow-up method ofcontrol is called the “Texas Two-Step”.

Best coverage requires 1.) broadcast application of poisonous bait to which ants are attracted that they pick up and carry into their colony, followed by 2.) spot treatment with a contact pesticide, whether chemical or organic.

Stage 1 Control- Broadcast Bait

The first step recommended by University of Georgia entomologists is to broadcast a bait insecticide over the entire infested area. Crabapple uses fresh bait and applies it when the ground and grass are dry. Appealing to ants, processed corn grits coated with soybean oil have ant-killing pesticides added and are broadcast at a very low rate of 1 to 1.5 pounds per acre (!) . Unsuspecting fire ants carry this tainted ‘food’ into their colonies. This ant-assisted delivery system targets workers, queens and brood (eggs, larvae and pupae) inside the mounds. Bait-treated mounds will eventually die out and will keep new fire ant queens from re-infecting the area but the approved method is to follow baiting with a one-two knockout punch.

Stage 2 Control- Spot-Treat Threatening Mounds

Fire Ant Hill 8 inches tall! 

After allowing the bait time to work (about 3 days to a week), Crabapple implements Stage 2 control. The second phase of fire ant control involves spot treatment of threatening mounds next to high-traffic areas such as playgrounds, sidewalks, dog runs and building foundations. This second step uses one of several approved products labeled for fire ants that kills them on contact. The choice of products includes drenches, granular products, liquid fumigants and injectable products. Your Crabapple Rep can recommend the best product for your particular property.

Contact Methods include:

• Drenches requiring one to three gallons of the solution to treat a single mound 
• Injectable products applied with a rod injector to the center of the colony 
• Products that combine with water and volatilize into a “heavier-than-air” gas that sink into the mound and fumigates it 
• Organicpesticides such as pyrethrin insectide that is harmless to warm-blooded pets and people or citrus, orange oil-based pesticides 

Better than 90% control in 10-12 weeks

UGA research shows that the use of this one-two knockout plan, first broadcasting a bait and then spot-treating problem mounds, produces a greater than 90 percent success rate within 10 to 12 weeks. Crabapple recommends repeating this 2-Stage program on a regular schedule, or else the area will become re-infested by incoming mated fire ant queens within six to twelve months. To keep your property free of fire ants, we recommend repeating the broadcast bait application every six months and spot treatment of individual mounds., Let your LandscapExperts Rep arrange to eradicate fire ants on your properties now. 

photos thanks to UGA Centre for Urban Ag, USDA, Geri Laufer

Digging Deeper 

A hilarious and fascinating (to landscape geeks) Post by Dr. Sanford Porter, a researcher at the USDA-ARS Center for Medical, Agricultural and Veterinary Entomology in Gainesville, Florida mentions dozens more ways to kill fire ants.

And Deeper
A trailer about making the Giant Amazon Ants sequence in Indiana Jones and the Crystal Skull.  

Trench Edging or Air Root-Pruning for Lawns

A great landscape has a well-manicured look that results in large part from a neat and crisp edge between lawn areas and shrubbery, flower beds or paving. Crabapple LandscapExperts have state-of-the-art equipment to give your turf areas a clean edge.

Turf grasses spread rapidly by above- and below-ground runners that are difficult to control around flower beds, borders, walks and paving. For many properties we recommend trench edging for lawns.

Benefits of Trench Edging

• Natural looking
• Economical
• Clean and crisp
• Does not chip and biodegrade (as with plastic edging)
• Catches mulch from flower or shrub beds (preventing it from spreading onto the lawn)

CrabappleLandscapExperts run a mason string line for your initial edge and use a hose or spray paint for your curves. Using the latest equipment we then make a V-shaped cut between the turf and the flower bed, cutting straight down next to the grass and with an angled cut from the flower beds or paving. This results in a shallow 3-4 inch trench. Excess soil is directed into the adjacent bed. When the roots of grass hit the trench they are “air root pruned,” thus stopping turfgrass stolons from invading the flower bed or growing over the sidewalk or curb. Air root pruning is a well-accepted horticultural technique.

As with many landscaping techniques, the key to keeping a tidy edge is upkeep and maintenance throughout the year. Arrange for your edging project with your LandscapExpert. 

photo credit Steve Thompson