Q.Why Is The Bark On My Norfolk Island Pine Splitting
My Norfolk Island Pine is a potted plant about 3 1/2 feet tall. It has new growth and appears healthy except for the main trunk is splitting and it almost looks like sap is seeping out.. I don’t know what this is or what to do about it. I had another Norfolk Island Pine for 20 years and never saw this. I hope you can help. Thanks

Certified GKH Gardening Expert
It does look like an infection setting in. I would advise a fungicide, and continued proper care.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/houseplants/norfolk-pine/norfolk-island-pine-care.htm