Pyrethrin is a broad spectrum pesticide that should only be used as a last resort. You did start kind of with a good IPM program by asking for help identifying what you have, but the rest is are those causing a problem that needs to be solved and thus far there is no problem. Then if what you have is causing more of a problem than you can live with and needs control you start with the least toxic means of control and that might be hand squishing, maybe an insecticidal soap, maybe just encouraging predators to move in. Don't just assume, as the pesticide ads portray, that every insect needs to be killed off.

I haven't the foggiest notion what they are, but I just found out there's a Garden Clinic Forum here on GW. That would be a good place to post your pics. Claire

The plant was Calceolaria integrifolia Golden Nugget. The eggs were in rows that were like a rectangle and were light to medium brown. I have problems with aphids and white flies, but I looked up those eggs and ruled those out. I don't think they could be caterpillar eggs this time of year. But, I had a big problem last summer with something coming and eating all the lower leaves of annual poppies and even the roses. These guys loved to eat. We never saw what they were, but other gardeners told me they all had the same thing last week. It was not snails or slugs. I had to discard a lot of plants.

Hmmmm. I'm not sure what they are, but they don't really look like eggs of the lily beetle to me. Probably the eggs of one of the many pests of Solanaceous plants such as potato beetle. The plant in the image isn't a lily....it's not even a monocot.