Do you guys know what this is? It looks like there’s eggs inside. And it’s squishy but I can’t pop it even though I smushed it with another utensil. I do have a recurring problem with thrips, spider mites and a small amount of aphids. It seems I just can’t keep up with them. But upon spraying them today I found two leaves with this on my croton (who doesn’t seem to be affected by pests even tho the others are) and I have found leaves on others before. Might they be using him as a nursery and then migrating to the others? The spray I’m using is a mix of neem oil and Castille soap on water.