Just checking this out. First grow, in flowering 6+ weeks, extra leaves are browning and falling but the buds areclean, no sign of rot. No sign of mites, using a flowering fertilizer 1/wk, grown in peat/manure/vermiculite blend in a sterile room.
Now my question is these black spots. The top level of leaves just below the flowers are developing these. My first though was some kind of resin? Or is that absurd. Its really sticky, I cant figure if it has a smell. Is it a vitamin overload leaking out?? Am I just overly paranoid about problems???
AND - it is only on one plant out of two in the room. Two different varieties.
Ok. Maybe wrong choice of word, but it is in a sealed room, no animals, no access to outdoors, no other plants… It would be extremely unlikely that insects got in. Possible, but highly improbable.
You have an ante room? Sealed? With a shower and full suits? Cuz if you dont clean the ante room and yourself 100% and suit up before you do anything with your plants you are introducing things.
Is that plant closest to your air intake? Particulate matter adhering to trichromes? Do you have a small scope or a loupe to get a real close look? fly or spider shit would be most likely but you have ruled that out. Smoking near your intake? Hmmmm.
You will have to send btc and I will tell you the answer…
LOL only joking, it looks like a type of tar to me, I have seen it before on the leaves of ash trees but never on an indoor grown tree or plant.
Cut a leaf off and get it under the scope, it could be some type of insect egg ? Place in an empty sterile plastic box with a lid and see if anything hatches, if not its some kind of tar excreted by the plant.
Hmm. I’ll try this. It seems unlikely about the eggs, as it’s been on the leaves now and steadily increasing for about two-three weeks. I’m thinking you might be right about some kind of tar… I’m going to try to get some better photos tonight… but it’s tough because I don’t usually get home until after they go to their 12 hour sleep for the night, and I don’t want to ‘wake’ them.
@mac07 You can use a special green light, it uses the green spectrum of light that the plants will not be bothered by if you have to go in the room in the dark, most grow shops sell them now, like a small torch but with green bulb, its below the ultraviolet spectrum at the far/low end of the light spectrum. But if you do make sure the room your entering FROM is also DARK.
Lol, I’ve been superparanoid about that. I’ve got two layers of blackout curtains on the outer room as well, and it doesn’t lead to a windowed room either. I’ll keep an eye out for a green light, thanks!
I’m with @lotus710 on this. No such thing as a sterile growroom - if you are in it, you are contaminating and serving as a vector for other contaminants and pests. You’ve got an infestation. Check the undersides of the leaves directly above the spotted leaves. Use a loupe or hand microscope. Different strains have different susceptibilities so the fact that only one plant is showing signs isn’t surprising, I’ve seen it many times.
