Really need help. I've searched both houseplants that I have and neither seem to have any pests on them or fungus. One of the plants has leaves curling up and a few leaves that have spots that look like something's been eating on it. The other plant doesn't have curling leaves, but has a few spots where it's been eaten on. I've sprayed with soapy water and rinsed. Searched leaves, stems, etc. and found nothing. Worried the most about the plant that has curling leaves. Seems to be spreading. Have had these plants for so long & don't want to lose them. I am posting photos of the curling leaves. Appreciate any help. Thanks.

Here's a couple of the other plant that only has a few spots where it looks like something eating on it. No other problems as far as I can tell.

My first thought would be mealybugs, other members will give you better advice.

What kind of plants are these?

My first thought was spider mites--or mites of some kind.
They are pretty invisible...
Using a Systemic on the soil as well as on the plant may help.
"Bayer has a good spray called "Insect, Mite and disease control" Not 100%
sure of the name. Home Depot carries it.

http://www.homedepot.com/p/Bay...

Hope it helps.... Gita

Mites or mealy bugs would be my guess as well. I too would use a systemic and would spray with Neem oil.