Common Southeastern Landscape Pests and Prevention Tips

When it comes to commercial properties, a healthy landscape doesn't happen by chance. Even the most well-designed properties can become vulnerable to insects and other pests that damage trees, shrubs, turfgrass, and ornamental plants. The warm temperatures and high humidity found throughout the Southeast create ideal conditions for many landscape pests to thrive year-round.

The good news is that most pest problems can be minimized, or even prevented, with regular inspections, proper plant care, and early intervention. Understanding the most common landscape pests in the Southeast can help property managers and HOA boards protect their landscape investments before small issues become costly problems.

Aphids

Aphids are tiny, soft-bodied insects that feed on plant sap, often gathering on new growth, flower buds, and the undersides of leaves. They reproduce quickly and can weaken plants by removing nutrients.

Signs of an aphid infestation include:

• Curled or distorted leaves

• Sticky residue (honeydew) on leaves and sidewalks

• Increased ant activity around plants

Prevention Tips:

• Monitor new plant growth regularly.

• Encourage beneficial insects such as lady beetles and lacewings.

• Avoid excessive nitrogen fertilizer, which promotes tender new growth that attracts aphids.

• Prune heavily infested stems when appropriate.

Scale Insects

Scale insects attach themselves to stems and leaves, where they feed on plant sap while remaining protected beneath waxy coverings. Because they resemble small bumps, infestations often go unnoticed until plants begin to decline.

Common hosts include hollies, magnolias, camellias, crape myrtles, and many ornamental shrubs.

Signs include:

• Yellowing foliage

• Leaf drop

• Reduced plant vigor

• Sticky honeydew and sooty mold

Prevention Tips:

• Conduct routine inspections throughout the growing season.

• Maintain healthy plants through proper watering and fertilization.

• Prune heavily infested branches.

• Apply horticultural oils during appropriate seasons when recommended.

Spider Mites

Spider mites aren't insects—they're tiny relatives of spiders that thrive during hot, dry weather. They feed by piercing plant cells, causing leaves to develop tiny yellow or bronze speckles.

Commonly affected plants include junipers, hollies, azaleas, and many evergreens.

Watch for:

• Fine webbing on foliage

• Yellow stippling on leaves

• Premature leaf drop

• Overall plant decline

Prevention Tips:

• Reduce plant stress through proper irrigation.

• Increase air circulation around dense plantings.

• Inspect susceptible plants during periods of hot, dry weather.

• Wash foliage with water when appropriate to reduce mite populations.

Chinch Bugs

For commercial properties with St. Augustinegrass, chinch bugs can become a serious turfgrass pest. These insects feed by sucking plant juices while injecting toxins into the grass, creating patches that resemble drought stress.

Symptoms include:

• Yellow or brown patches

• Turf that does not recover after watering

• Damage beginning in sunny locations

Prevention Tips:

• Avoid excessive nitrogen fertilization.

• Water deeply but infrequently.

• Monitor lawns during hot summer months.

• Address problems early before damage spreads.

Lace Bugs

Lace bugs are particularly problematic on azaleas, rhododendrons, and other ornamental shrubs commonly used in Southeastern landscapes.

These insects feed on the undersides of leaves, causing foliage to appear bleached or stippled.

Signs include:

• White or yellow speckling on leaves

• Dark spots beneath foliage

• Reduced flowering and plant vigor

Prevention Tips:

• Plant shrubs in locations suited to their light requirements.

• Maintain adequate irrigation during dry periods.

• Inspect the undersides of leaves during the growing season.

• Remove severely damaged foliage when practical.

Healthy Landscapes Resist Pests

One of the best defenses against landscape pests is maintaining healthy plants. Proper irrigation, balanced fertilization, correct pruning, mulch management, and selecting plants suited to local growing conditions all help landscapes withstand insect pressure.

Routine inspections are equally important. Catching pest activity early often allows landscape professionals to manage issues before widespread damage occurs, reducing treatment costs and protecting the long-term health of the landscape.

How Yardnique Can Help

Keeping commercial landscapes healthy requires more than simply reacting to pest problems – it requires proactive care. Yardnique's experienced landscape professionals provide routine property inspections and identify pest issues early. Serving commercial properties throughout the Southeast, our teams combine regional horticultural expertise with customized maintenance programs to protect your landscape investment and keep your property looking its best year-round.