I have a jade plant that I bought in May. I noticed a fly around the pot and when I tapped the pot, several started flying around...gave me the heebie jeebies. Should I just through the whole plant out? Is there a way to kill them? It's too cold to put it outside. I don't water the plant often, but once a month I water it well and just let it dry out again. It's in a green plastic pot. I have it in a west facing window.