Identifying and Treating Common Tree Pests in Central Texas
As temperatures warm in late winter and early spring, pests emerge to feed on stressed trees. In Central Texas, borers, aphids, and bagworms are among the most common culprits, especially on live oaks, pecans, and cedars around New Braunfels, San Antonio, and Canyon Lake.
Tree Service Pros monitors and treats these threats with environmentally responsible methods. Our ISA Certified Arborist team helps homeowners catch infestations early. Here is how to identify and manage key pests.
1. Aphids
Small, soft-bodied insects (green, black, or red) clustering on new growth, undersides of leaves, or stems.
They suck sap, causing curled leaves, honeydew (sticky residue), and sooty mold.
Ants often farm them.
Treatment: Strong water sprays dislodge them; insecticidal soap or horticultural oil for heavy cases. Ladybugs are natural predators.
2. Bagworms
Larvae in spindle-shaped bags made of silk and foliage, hanging from branches. They defoliate evergreens and hardwoods, weakening trees.
Common on junipers and cedars in our area.
Treatment: Hand-pick bags in spring before larvae emerge; apply Bacillus thuringiensis (Bt) spray for young caterpillars. Professional spraying for large infestations.
3. Borers (Including Emerald Ash Borer Threats)
Flatheaded or roundheaded beetles; larvae tunnel under bark, creating D-shaped exit holes or frass (sawdust-like poop). Trees show dieback from the canopy top down, yellowing, or oozing.
Emerald ash borer is a major concern in Texas.
Treatment: Systemic insecticides (trunk injection) for prevention/treatment; remove infested wood promptly. Early detection is critical.
4. Prevention and Monitoring Tips
Keep trees healthy with proper watering, mulching, and fertilization to resist attacks. Inspect regularly in spring for early signs.
Avoid stress from over-pruning or drought.
We offer integrated pest management (IPM) plans with scouting, targeted treatments, and minimal chemical use.
5. When to Call Professionals
If you spot widespread damage, holes, bags, or sticky residue, do not wait. DIY can miss root causes or spread issues. Our team provides accurate ID, safe treatments, and follow-up.
Protect Your Trees from Spring Pests
Early identification and treatment save trees and money. Tree Service Pros delivers expert pest scouting and control in New Braunfels and Central Texas.
Concerned about pests? Get a free tree health check today.
Frequently Asked Questions: Tree Pests in Central Texas
How do I identify bagworms on my trees?
Look for small spindle bags hanging from branches, made of silk and chewed foliage. They are most noticeable in spring on cedars and junipers.
Are aphids harmful to Central Texas trees?
Yes, heavy infestations cause curled leaves, honeydew, sooty mold, and weakened growth. They are common on new shoots in spring.
What are the signs of borers in my trees?
D-shaped exit holes, frass at base, canopy dieback starting at top, or oozing sap. Borers target stressed trees.
Can I treat tree pests myself in New Braunfels?
Minor cases, yes (water sprays, hand picking), but severe or borer issues need professional tools and products for safe, effective control.
How can I prevent pests on my trees?
Maintain tree health with watering, mulching, and inspections. Healthy trees resist infestations better. We offer preventive treatments.