I've noticed an abundance of ladybug larvae in that portion of the garden, and a lot of ladybugs in my backyard (not that I'm complaining of too many ladybugs in my garden)
Was it a wet foamy sticky substance or powdery? On my Rosemary it is white wet and foamy. It does not seem to be hurting my bush and it is the only bush in my herb garden with it.
reynwater
Favorite Answer
Spittle Bug: http://www.flickr.com/photos/32533103@N00/3651636518/
Most definitely Will harm your plants http://en.wikipedia.org/wiki/Froghopper
DaveSFV
It is the pupae stage of many insects. It is like a cocoon. The insect will emerge as an adult from this foam.
Mama Mia
It sound like leaf hopper nymphs aka spit bugs. Just hit with the sprayer hose and wash them off.
ThelastMovement.blogspot.com
maybe aphids? cant tell without a picture. Use a insect soap. Two or three applications should clear it.
spirit
the spittle bug it deposits that foamy stuff. google it if you can but i think it is harmless besides you need to keep your lady bugs. tat is what the bug is actually called down south in laymans terms.