L.A Vanilla cake - Organic Outdoor - GoRS

I don’t know whether I should cut her down. I don’t know whether she is infected with fusarium. Once I found a branch that was grey in the inside but nothing happened in the last two weeks: no further wilt. Update: Finally I’ve decided to cut her and I think I was right: the main stem had some serious fungal infection as you can see on the picture. She was a nice plant. I would love to try to grow it again. R.I.P. The Lesson I Iearned / things I want to implement in the next round: -use trichoderma in the beginning so fungal pathogens have less chance to mess your garden up -use neem (adding it to your compost or spraying diluted on the plants REGULARLY) -desinfect your scissors before you touch your plants with them -try to catch butterflies (moths) at spring when they show up and start to use BT even before once every 2 weeks -use of horsetail extract as fungicide. Anything you would suggest as Pest Prevention?