Purpurea? Are you saying you skipped dormancy? If so I wouldn't be worried about that mold spot. How small is the plant that you are giving it fungus gnats? If young enough it may be ok skipping dormancy. Yes I would cut it off if it isn't the only functioning trap.

Thanks for the response. I brought it in because I wasn't sure it would make the winter. From what I have read since I've found it probably would.

I believe it did go dormant, because it didn't grow at all throughout the winter. It was in my GH for a few freezes as I was gone for awhile, so I think this started dormancy. I can't say for sure because it didn't appear any different and I just don't know much about them. About 3 weeks ago I put it back in the GH and has since sent up a new pitcher that is growing quick, prossibly a 1/4inch a day.

When I got it only had 2 pitchers. One about 10inches and the other about 6. I gave them the fungus gnats basically just cause the gnats where in the house. I had squished them and then tried to put them in the pitcher. They got stuck right below the rim, I tried to knock them in, but was fearful of hurting the plant. I'm guessing this caused the problem. I probably shouldn't have tried to feed them anyway since they were dormant.

I had another question as well. I have been giving them rain water, but I keep Mosquito dunks in the water, mainly to help control the fungus gnats on my other plants. Will the bacteris affect the sarracenia? It hasn't seemed to. Like I said a new pitcher has grown to about 3 inches in the past 2 weeks, so I don't think it's hurting it.

No BT(i) or any other BT wouldn't hurt them. It's probably the best control for the gnats.