After taking a cutting from someone else’s room (stupid), keeping it in my propagator and subsequently getting rid of it, some of my plants started to exhibit some markings on the leaves and leaf curling that looks like pictures of cannabis plant viruses I’ve seen on the net. The odd thing is that it didn’t spread from plant to plant, but only stayed in one strain I was growing, even though the other plants were touching.

This led me to believe it possibly wasn’t a virus as it didn’t spread throughout the whole crop. At the end of the flowering period, I obviously discontinued the strain that got the weird leaf markings and the other unaffected strain has been great ever since. I’ve checked carefully for pests & there aren’t any.

Anyway I didn’t clean my propagator properly (again stupid), and a new strain I’m trying is exhibiting the exact same symptoms as before as per the photos attached. I think it must have been something they contracted from the unclean propagator.

I’ve been growing for a good while so the environment, medium (coco) and growing style are dialed in and have worked excellently for many years. The symptoms are initially a variegated pattern on the leaf, with the older leaves at the bottom of the plant displaying chlorosis as shown. Otherwise the plants are in excellent shape and vigorous as they always are.

Obviously I’m going to be much more careful from now in with cleanliness and will start with a new propagator & pots next time. I was originally reassured that this could be fine and perhaps a strain specific trait & should sort itself out in time, but now, considering it’s affected two separate strains from the same propagator and is displaying chlorosis, I’m not so sure.

Would anyone be able to tell me what’s going on? I’ve included photos of the plants in their state today and when they were younger to give a full picture.

Cheers