Tree Alerts

11 October 2022

Sticky Substance Dripping From Trees Is “Honeydew” From Aphids

Insects called aphids (and some scale species) suck on plant sap and secrete a liquid we all know as honeydew. Honeydew is insect waste. It is harmless to the tree, but can create a mess on cars and other property near an infested tree.

For more information: What’s That Sticky Stuff Coming From My Trees? by Scott Geer, ISA Master Arborist.


22 September 2022

Hackberry Trees Being Defoliated By Moth Larvae

Hackberry trees are being hit hard by moth larvae. The small green caterpillar eats the flesh of the leaves, creating a skeleton-like look to individual leaves. While the trees might turn brown and look like they are dying, they, in fact, are not.

For more information: Hackberry Trees: Dying or Under Attack? by Scott Geer, ISA Master Arborist


10 May 2022

Pine Trees Seem to Be More Susceptible to Attacks from Insects

Pine trees in the North Texas area seem to have been affected by boring beetles more often recently. It is suspected that the hard freeze of February 2021 weakened most of the pine trees. The pine trees have used a lot of energy to recover the foliage they lost last year, leaving them susceptible to attacks from insects.

What to look for:

  • Any browning or “flagging” of the limbs.
  • A bunch of Tiny pinholes in the bark
  • Woodpecker activity

For more information: Pines in Decline? by Scott Geer, ISA Master Arborist


1 March 2022

EAB – Emerald Ash Borer Spreading in North Texas

The Emerald Ash Borer (EAB) was first spotted in North Texas in 2018. The insect can kill an ash tree in 2 – 3 years. Management is possible. To learn more about symptoms, treatments and control measures, please see other articles on this site:

Live in Denton County, Texas? Contact Tree Shepherds. Our ISA Certified Arborists can help you with all of your tree care needs.