Hi:
I can't tell from the pictures exactly what species you are dealing with. You could use a product that has Bacillus thuringiensis (BT) for them now since they are small. It is a bacterial spore and very safe to use.  You could also use a product that contains the active ingredient spinosad.  It is also very effective against caterpillars.  Hand removal is always the best method if you can reach them.

Thank you for your recommendations.  I'll purchase and deploy these products asap. 

Is it possible to delete my phone number from this post?

Thanks again - what an awesome resource the extensions are!  Many folks rely on the sales advice from vendors which usually results in the use of synthetic poisons and agents.  Glad I was able to utilize this resource and find an environmentally and health friendly solution.
Hope it works!
-Geoff

Hi Geoff:
I am glad you found us.  Our purpose is provide unbiased information to the public on many issues.  On a different topic, I don't know how to remove your phone number from your post. Sorry.