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About Nathan Riggs
Expertise
I have expertise in identifying insects, many types of spiders, and other arthropod critters that infest lawns, ornamentals, structures, trees, pets and livestock. Mites are not a strong point of mine, but I can provide some help. I'm not a licensed doctor, so I cannot provide medical diagnosis of conditions possibly related to insects. If you've got an interesting photo for me to see, let me know and I'll give you my email so the picture will get to me. If you have hosted an insect photo on a website, please include the link so I can go look at it and provide a faster ID for you. Don't forget...you can now attach pictures to your questions as well!
Experience
17 Years' Experience as an entomologist: 5 years as a biologist with Merck Animal Health and 7 years as a Pest Management Specialist in San Antonio, Texas with Texas Cooperative Extension.
Publications
Veterinary Parasitology, Southwestern Entomologist, San Antonio Express News, San Antonio Gardener Newsletter
Education/Credentials
BS - Entomology from Texas A&M University in 1992.
Board Certified Entomologist, 1996-2000 - Medical and Veterinary Entomology Specialty (Entomological Society of America)
Awards and Honors
2000 Texas A&M University Vice Chancellor's Award in Excellence for leadership on the Texas Fire Ant Program Educational Team.
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You are here: Experts > Science > Insects/Spiders > Entomology (Study of Bugs) > Follow-up to previous question
Expert: Nathan Riggs - 10/27/2009
Question
Thanks for the identification of the yellow jackets. That raises another question. Did the yellow jackets bore the holes in the tree, or were the holes bored by something else? If something else, do you have any idea what may have done it? The location is East Tennessee.
Thanks.
Greg
Answer
Chances are that the holes were made by adult wood boring beetles exiting the tree earlier in the fall or late summer. Those wounds are now oozing as sap begins to head down the tree for winter. You might do a search for "gum tree borer" and see what you get.
N
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