Pest and Disease Issues That Commonly Affect Flowering Shrubs

December 2, 2025

Flowering shrubs bring beauty, color, and structure to your landscape—but they’re also vulnerable to a variety of pests and diseases. When these problems go unnoticed, they can quickly spread and weaken your plants, leaving your yard looking dull and stressed. As a trusted tree and shrub care provider in Dallas, GA, First Tree Service is here to help homeowners identify common issues early and protect their outdoor spaces year-round.

Below, we break down the most frequent pests and diseases affecting flowering shrubs, the warning signs to watch for, and proven solutions to keep your landscape thriving.


Common Pests That Affect Flowering Shrubs

1. Aphids

Aphids are tiny, pear-shaped insects that feed on plant sap. They gather in clusters on young leaves and stems.

Signs of aphid activity:

  • Sticky honeydew residue

  • Yellowing or curling leaves

  • Stunted new growth

How to manage:
Strong water sprays, neem oil, insecticidal soaps, or professional treatment can help eliminate infestations before they spread.


2. Spider Mites

These nearly invisible pests thrive in hot, dry weather—conditions common during Georgia summers.

Signs of spider mites:

  • Fine webbing around leaves

  • Tiny yellow or white speckles

  • Leaf drop in severe cases

How to manage:
Increase humidity through regular watering, prune infested areas, or call for targeted mite control services.


3. Scale Insects

Scale insects form small shell-like bumps on stems and leaves, making them tough to spot at first.

Signs of scale infestation:

  • Sticky foliage

  • Yellowing leaves

  • Weak or slow-growing shrubs

How to manage:
Horticultural oils and systemic treatments are highly effective, especially when applied during the pests’ active stages.


4. Whiteflies

These small, winged insects swarm when a branch is disturbed and feed heavily on plant juices.

Signs of whiteflies:

  • Leaf yellowing or wilting

  • Sticky honeydew

  • Mold growth on leaves

How to manage:
Regular monitoring, sticky traps, and professional insect control keep whiteflies from overtaking your shrubs.


Common Diseases That Impact Flowering Shrubs

1. Powdery Mildew

A widespread fungal disease, powdery mildew appears as a chalky white coating on leaves and stems.

Contributing factors:

  • Poor air circulation

  • Excess shade

  • Wet, humid weather

Solutions:
Prune back dense branches, increase airflow, and treat with fungicides if needed.


2. Leaf Spot Diseases

Caused by fungi or bacteria, leaf spots result in brown, purple, or black lesions on foliage.

Warning signs:

  • Speckled or blotchy leaves

  • Premature leaf drop

  • Slowed growth

Solutions:
Remove affected leaves, improve watering practices, and, if necessary, apply targeted treatments.


3. Root Rot

Root rot is common in poorly drained soil and can weaken or kill shrubs quickly.

Warning signs:

  • Wilting despite adequate watering

  • Mushy, dark roots

  • General decline

Solutions:
Improve soil drainage, avoid overwatering, and consult a professional for diagnosis and remediation.


4. Botrytis Blight (Gray Mold)

This disease thrives in damp, cool conditions and affects blooms directly.

Signs include:

  • Gray fuzzy mold on petals

  • Wilting flowers

  • Brown lesions on buds

Solutions:
Improve airflow, remove infected blooms, and treat with fungicides if needed.


How to Keep Flowering Shrubs Healthy Year-Round

Preventing pest and disease issues is easier—and more cost-effective—than treating them after they’ve become severe. Here’s how Dallas, GA homeowners can protect their landscapes:

  • Water wisely: Avoid overwatering, and aim for soil—not leaves.

  • Mulch properly: Helps maintain moisture and reduces plant stress.

  • Prune annually: Encourages airflow and removes vulnerable growth.

  • Monitor regularly: Early detection is the best defense.

  • Schedule professional shrub care: Experts can treat issues before they spread.


Protect Your Flowering Shrubs with First Tree Service of Dallas, GA

When pests or diseases threaten your shrubs, fast action matters. First Tree Service of Dallas, GA provides expert inspections, tailored treatment plans, and long-term maintenance to keep your landscape healthy, vibrant, and beautiful.

If you’ve noticed symptoms or want preventive care, contact First Tree Service today for reliable, affordable shrub and tree care trusted by homeowners across the region.


Tree Service, Tree Removal, Tree Trimming, Stump Removal


First Tree Service of Dallas Ga

Dallas, Ga 30157

404-238-7367

http://www.firsttreeservicedallasga.com/

You might also like

February 5, 2026
Your yard may look healthy at first glance—but beneath the surface, invasive plants could already be gaining control. These aggressive species spread fast, crowd out native plants, and slowly damage the natural balance of your landscape. For homeowners in Dallas, GA, understanding how invasive plants work is the first step toward protecting your property. At First Tree Service of Dallas GA , we help homeowners identify and remove invasive plants before they cause long-term harm. What Are Invasive Plants? Invasive plants are non-native species that spread aggressively and disrupt local ecosystems. Unlike native plants that grow in balance with their surroundings, invasives outcompete everything around them for sunlight, water, and nutrients. Once established, they are difficult to control—and even harder to remove without professional help. How Invasive Plants Take Over Your Yard 1. Rapid Growth and Spreading Roots Many invasive plants grow faster than native species and spread through extensive root systems or underground runners. Some even release chemicals into the soil that prevent other plants from growing nearby. 2. Lack of Natural Predators Because they didn’t evolve in North Georgia’s environment, invasive plants don’t have the insects or diseases that normally keep plant populations in check. 3. Shade and Space Domination Invasives grow tall and dense, blocking sunlight from reaching grass, flowers, and trees underneath. Over time, your healthy plants weaken and disappear. 4. Seed Explosion Invasive species often produce thousands of seeds that are carried by wind, birds, and water—allowing them to spread quietly across your yard and beyond. Common Invasive Plants in the Dallas, GA Area Homeowners in Paulding County frequently encounter: Kudzu – Known as “the vine that ate the South” Chinese Privet – Crowds out native trees and shrubs English Ivy – Weakens tree bark and causes structural damage Japanese Honeysuckle – Smothers groundcover and small plants Tree of Heaven – Grows fast and damages foundations These plants may look harmless at first, but they spread fast and cause serious landscape problems. Why Invasive Plants Are a Threat to Your Property They weaken trees by stealing nutrients They increase erosion by disrupting soil structure They raise maintenance costs They lower property value They create hiding places for pests and rodents Left untreated, invasive plants can turn a healthy yard into an unmanageable mess. How to Stop Invasive Plants Before They Take Over Early Detection The sooner invasive plants are identified, the easier they are to remove. Proper Removal Pulling invasive plants incorrectly can make the problem worse. Some species grow back stronger if roots aren’t completely removed. Professional Control Tree and land professionals use specialized tools and methods to safely remove invasive plants without harming your landscape. Trust First Tree Service of Dallas GA for Invasive Plant Removal At First Tree Service of Dallas GA, we help homeowners protect their yards from invasive species through expert identification, removal, and long-term prevention strategies. Our services include: Invasive plant and vine removal Tree health inspections Brush clearing and land cleanup Preventative maintenance plans If you suspect invasive plants are taking over your yard, don’t wait. Call First Tree Service of Dallas GA Today Protect your landscape before invasive plants cause lasting damage. Contact First Tree Service of Dallas GA today for a professional evaluation and customized treatment plan. Tree Service, Tree Removal, Tree Trimming, Stump Removal First Tree Service of Dallas Ga Dallas, Ga 30157 404-238-7367 http://www.firsttreeservicedallasga.com/
January 27, 2026
Planting trees adds shade, beauty, and long-term value to your property. But when trees are planted too close to buildings, driveways, sidewalks, or underground utilities, their roots can eventually cause serious and expensive damage. Understanding how roots grow and planning your landscape carefully can help you enjoy healthy trees without putting your home or hardscapes at risk. Below is a practical guide to avoiding root problems when planting trees near structures. Why Tree Roots Cause Structural Damage Tree roots naturally grow toward moisture, oxygen, and nutrients. Foundations, sewer lines, and pavement often provide ideal conditions for root growth—especially when there’s condensation, runoff, or small leaks underground. Common problems caused by poorly placed trees include cracked sidewalks, lifted patios, damaged foundations, clogged sewer lines, and uneven slabs. Roots aren’t “aggressive” by nature; they simply grow where conditions are favorable. Choose the Right Tree for the Space Avoiding root damage starts with choosing trees that fit the available space. Large, fast-growing trees develop wide root systems that don’t belong near structures. When planting near homes or hardscapes, look for smaller ornamental trees with slower growth and non-invasive roots. Avoid placing large shade trees like oaks, maples, and elms close to foundations or concrete features. Always consider how wide and tall the tree will be at full maturity—not just how it looks at planting time. Follow Safe Planting Distances The size of the tree at maturity determines how far it should be from structures. Small trees should still have enough space for root spread, while medium and large trees need significantly more distance to prevent damage. As a general guideline, small trees should be planted at least 10 to 15 feet away from buildings. Medium-sized trees need around 15 to 25 feet of space. Large trees should be planted 30 feet or more from any structure, sidewalk, driveway, or underground utility line. This spacing allows roots to expand naturally without pushing against concrete or foundations. Understand How Roots Really Grow Most tree roots grow outward instead of straight down. In fact, the majority of roots stay within the top 12 to 24 inches of soil and can spread two to three times wider than the tree’s canopy. This horizontal growth is why roots can easily lift sidewalks, crack driveways, and interfere with foundations if trees are planted too close. Improve Drainage and Soil Conditions Roots seek out moisture. If water collects near your home’s foundation or hardscapes, roots will migrate toward those areas. To prevent this, make sure your soil drains well and that downspouts and irrigation systems direct water away from structures. Fix leaking pipes, avoid overwatering, and keep moisture balanced throughout your yard so roots don’t concentrate in problem areas. Use Root Barriers in Tight Spaces When planting in narrow or limited areas, root barriers can help redirect roots downward and away from sidewalks, driveways, and foundations. These barriers are installed in the soil between the tree and the structure to guide roots away from hard surfaces. While barriers help, they should always be paired with proper spacing and smart tree selection for best results. Think Long-Term, Not Short-Term One of the biggest mistakes homeowners make is planting based on how the tree looks today. A small sapling can turn into a massive tree in 10 to 20 years, and its roots will follow. Always plan for the future size of the tree and its root system. Thinking long-term saves money, prevents damage, and keeps your landscape healthy. Get Help From a Tree Professional A certified arborist or professional tree service can recommend the best tree species for your property, evaluate soil and drainage conditions, and choose safe planting locations. Professional guidance ensures your trees thrive without putting nearby structures at risk. Final Thoughts Trees should enhance your property—not damage it. By choosing the right species, planting at safe distances, and understanding how roots grow, you can enjoy strong, beautiful trees without costly foundation, sidewalk, or utility problems down the road. Tree Service, Tree Removal, Tree Trimming, Stump Removal First Tree Service of Dallas Ga Dallas, Ga 30157 404-238-7367 http://www.firsttreeservicedallasga.com/
January 15, 2026
Healthy trees rely on consistent moisture to thrive, especially in Georgia’s changing seasonal conditions. One of the most effective yet often overlooked ways to protect tree hydration year-round is proper mulching. When applied correctly and at the right times of year, mulch helps trees retain moisture, regulate soil temperature, and reduce stress caused by heat, cold, and drought. At First Tree Service of Dallas, GA, we help homeowners maintain strong, resilient trees through professional care and proven techniques. Below, we share seasonal mulching tips to help your trees stay hydrated and healthy throughout the year. Why Mulching Is Essential for Tree Hydration Mulch acts as a protective barrier between the soil and the elements. It slows evaporation, allowing moisture to stay in the root zone longer. This is especially important in North Georgia, where hot summers, dry spells, and sudden temperature shifts can quickly deplete soil moisture. Key hydration benefits of mulching include: Reduced water evaporation from the soil Improved water absorption during rainfall or irrigation Protection against soil compaction Healthier root development When mulch is applied improperly, however, it can do more harm than good. Seasonal timing and correct technique make all the difference. Spring Mulching: Preparing Trees for Active Growth Spring is an ideal time to refresh mulch as trees come out of dormancy and begin active growth. During this season, mulch helps retain moisture from spring rains and supports expanding root systems. Spring mulching tips: Apply mulch after the soil has warmed slightly to avoid trapping cold, wet conditions Maintain a 2–4 inch mulch layer around the tree Keep mulch at least 2–3 inches away from the trunk to prevent rot and pests Spring mulching also helps suppress weeds that compete with trees for water, giving your landscape a healthy head start. Summer Mulching: Reducing Heat Stress and Water Loss Georgia summers can be especially harsh on trees, with high temperatures and inconsistent rainfall increasing the risk of dehydration. Mulch plays a critical role in conserving moisture during this time. Summer mulching benefits: Insulates soil against extreme heat Slows rapid evaporation Helps roots stay cooler and more hydrated Organic mulches like wood chips or shredded bark are ideal because they break down over time, improving soil structure and water retention. Pro tip: Avoid piling mulch too thick in summer. Excessive depth can prevent water from reaching roots efficiently. Fall Mulching: Locking in Moisture Before Winter Fall mulching is often overlooked, but it’s one of the most important seasonal steps for tree hydration. Trees continue absorbing water well into autumn, storing moisture to survive winter dormancy. Fall mulching advantages: Retains moisture during dry autumn periods Protects roots from early cold snaps Reduces soil erosion from fall rains Applying mulch in fall also helps stabilize soil temperature, preventing freeze-thaw cycles that can damage roots. Winter Mulching: Protecting Roots from Cold and Dryness While trees need less water in winter, roots can still suffer from dehydration—especially during dry winters or when the ground freezes. Mulch acts as insulation, keeping soil conditions more consistent. Winter mulching best practices: Maintain mulch depth but avoid adding excessive layers Ensure mulch remains loose, not compacted Inspect for mulch buildup against the trunk after storms Winter mulch helps trees enter spring with healthier roots and better moisture reserves. Choosing the Right Mulch for Tree Hydration Not all mulch materials offer the same hydration benefits. For trees in the Dallas, GA area, organic mulch options are typically best. Recommended mulch types: Wood chips Shredded hardwood bark Pine bark or pine straw Leaf mulch These materials improve moisture retention while enriching the soil as they decompose. Avoid rubber mulch or decorative stone near trees, as they can trap heat and reduce water penetration. Common Mulching Mistakes to Avoid Even well-intentioned mulching can harm trees if done incorrectly. The most common issue professionals see is “mulch volcanoes,” where mulch is piled high against the trunk. Avoid these mistakes: Mulch touching the trunk Applying more than 4 inches of mulch Using mulch to cover exposed roots entirely Ignoring seasonal adjustments Proper mulch placement should resemble a wide, flat donut—not a cone. When to Call a Professional Tree Service While mulching may seem simple, proper depth, material selection, and seasonal timing require experience—especially for mature or stressed trees. Professional arborists can assess soil conditions, drainage, and tree health to ensure mulching supports hydration rather than hinders it. At First Tree Service of Dallas, GA, our certified arborists provide expert tree care, including mulching guidance, soil health evaluations, and long-term maintenance strategies tailored to local conditions. Support Strong, Hydrated Trees Year-Round Seasonal mulching is one of the most cost-effective ways to protect your trees from dehydration, stress, and long-term decline. By adjusting your mulching approach throughout the year, you help your trees stay resilient in every season. If you’re unsure whether your trees are properly mulched or showing signs of moisture stress, First Tree Service of Dallas, GA is here to help. Contact our team today for professional tree care that keeps your landscape healthy, hydrated, and thriving year after year. 🌳 Tree Service, Tree Removal, Tree Trimming, Stump Removal First Tree Service of Dallas Ga Dallas, Ga 30157 404-238-7367 http://www.firsttreeservicedallasga.com/

Contact us today!