Thanks Augie and RAH.

I don't think I have ever seen any significant damage from six-legged varmints or their insect larval stages.

The "insect" damage was only secondary due to the armadillos burrowing for the insects and grubs.

I would prefer NOT to use an insecticide. However, if my castor oil only works as a deterrent for 10 days and the insecticide lasts for an entire season, then the choice is easy.

Augie, how often do you have to treat with the Triazicide for Mrs. Augie's flowerbeds to survive from the spring through the fall?