Insect attack

[roambb]

Hello all,
I have moved my Phals outside (Atlanta GA)to summer, and I have encountered a beetle looking insect, though not black and much smaller than what I would term a standard beetle, eating the youngest leaves on a very small plant. I killed him, and unfortunately threw away the carcass, thinking he was probably the only one. This was not a scale or mealy bug, or any type of smail or worm. Now, there are signs of damage to more mature leaves on larger plants, so I imagine that there are others. They tend to eat in small circles from the edge of a leaf, and have chowed my newest growths. What can I do to eliminate these pests and keep them away. Any insecticides that would work safely, and how should I apply them?

Thanks for any help,
Patrick
Atlanta GA

[Cynthia, Prescott, AZ]

My advice in this thread about diatomaceous earth applies here.
pests
Cynthia, Prescott, AZ