I'm pretty sure its not infested. I've actually never fertilized this plant. I was advised above not to fertilize or prune while the plant is not in good shape... I've been keeping the soil moist and its in a room that gets indirect sunlight. I'm still not sure what the problem is. I want to cut back some of the burned leaves but I'd be left with very little plant. However, maybe that will give it strength to grow lots of new fresh leaves. I may do that. Thank you LorettaNJ for your comment.