- Fri May 22, 2020 4:55 pm
Test the water. If using trays, check the water in the tray with a tds meter. How wet are you keeping it? How high is the TDS?
Some general advice to contemplate:
If I find a ping that is not doing well, and I know the water is OK, then I decide whether the ping is "wet" or "Dry". In other words is water wicking from the bottom of the pot to the top of the pot or is it not. That is because I use a mineral mix that is not very absorbent compared to peat/sand mix or lfsm. I can generally see, with the mineral mix, if water is wicking to the top of the pot.
If the ping has not been growing well and the pot is not wicking water to the top, then I mist the top of the pot or try top watering to see if that helps the situation. Do NOT do that if you suspect brown heart disease.
Looking at the last pic, the top plant appears to have a darker center to me and that might be from rotting leaves. If that is the case and not just an artifact of that picture, then you likely have brown heart in that plant. If so, isolate immediately. A good game plan I would try with brown heart would be to immediately dry the plant. Remove plant from pot so media is exposed to the air and let it dry a couple of days. Once dried a bit, you can put it back in the pot and start misting once a week, avoiding plant center if you can. You are drying conditions to try to slow the progress of the disease and give the plant a chance to recover or create other growth points.
If the plant continues to decline, then you might want to sacrifice it in hopes of getting new plants from any healthy leaf pulls. I would also rinse the pulls in distilled water after taking them to hopefully reduce any pathogens that might be present. Let them air dry a bit to remove excess water before placing in a humid environment. Be gentle, you don't want any wounds on the leaves.
I freely claim to be an expert at killing gigantea (but I hope I am past that now!). The above is just general advice about how I would handle that problem, but I do not know if that will work or whether you actually have brown heart. Please let us know how the plants do.
The larger the island of knowledge, the longer the shoreline of wonder.