Seedling disease

[sastry]

Hi
I have these crosses grown from flasks, and they are about two year old, suddenly I see blackening of leaves starting from the tip and spreading to the entire leaf, is it a fungal disease, what is the problem and the treatment can anyone throw light on these. I have atta ched the pictures. Thank you in anticipation

 

[Happypaphy7]

You might want to read up on damping off disease on plant seedlings.
This far advanced case means that the plants are goner unfortunately.

 

[Ray]

Anthracnose?

 

[Ozpaph]

im with Ray.

 

[sastry]

Anthracnose?

Thank you will try
sastry

 

[BrucherT]

I’ve had this in my house. I cut off the bad stuff, doused them in Physan, let them dry, then doused again, let them dry, then doused them in alternating solutions of KelpMax and MegaThrive. Oh, forgot: treated the cuts with “Dragon’s Blood.” Then after 3 weeks, I fed with dilute CalMag, then resumed the usual k-lite feedings All the plants (P. fairrieanum) have survived for two years.