Does anybody know what this is on one of my Turk's cap? Look for the white balls in the middle of the picture. They actually have a pinkish tone.
some kind of bug
It looks like it could be the work of the Spittle bug;
http://www.gardeningknowhow.com/problems/spittle-bug-what-bug-leaves-white-foam-on-plants.htm
Yes, thank you, that looks like a possibility, though these are very spherical.