Insects could as well as nutrient deficiencies be causing some of those patterns although the chewed parts are either from insects or animals.

Thank you for your response. What is best for the deficiencies? Is there a certain type of insecticide to use? Would it hurt to treat them for pest even if there are not any visible?
Reine

The only way to know if any nutrients are deficient is with a good reliable soil test.
Which, or even if any insecticide is to be used depends on which insect pest you have. Keep in mind that any insecticide might also kill off any predatory insects there may be that will help control the pests you have.

The answer and an additional image are in this thread:
http://forums.gardenweb.com/forums/load/pests/msg0522110127530.html?4

Here is a link that might be useful: other thread

That might be one explanation, if the "weed" killer was sprayed when these plant were present. However, if these potted plants were placed outside after the spraying was done it is not very likely.

Thank you Kimmsr. The weed killer was before I moved the plants out.
I have read up on Neem Oil. I may try that on a few plants. I don't really like using chemicals. But because I moved the plants to a new area this year, because of my new pup chewing on plants, I wanted a quick fix for some grasbur. Where I used to keep my plants there were quite a few green anoles and they kept insects under control.
Thank you for your help.
Reine