Young Pecan Tree and Fire Ant hill
I just planted a Pecan tree in early February (about 6 weeks ago). Now, I just noticed a fire-ant hill about seven inches high pretty close to it (picture enclosed). Can I use a pesticide like Amdro that I normally use to kill fire ants in my yard to kill the mound or do you think it would kill the Pecan tree?
Also, do I need to remove the grass growing close to the tree to create a grass-free area around it?
Harris County Texas
You can treat the mound with Amdro without affecting the tree. The fire ant bait will not cause problems for the tree.
Once you knockout the mound, clearing a 3' circle around the tree and mulching (3" layer) will help minimize stress. The mulch will reduce weeds and also control soil moisture.
Here is a link to information on fire ants. http://fireant.tamu.edu/
Thanks for the question.