thin spider web on my orchids
 

Help, some of my orchids have these weird spider webs on them. I have my orchids in a terrarium and i mostly see the webs after the humidifier steamed on them.

does someone know what this is and how i can treat it?

thank you <3

Could very well be fungal hyphae - akin to roots on a plant.

If you were regularly using a probiotic, I’d congratulate you, as the fungus can help pump water into the plants, but otherwise, I don’t know if it’s a beneficial or pathogenic species, one one that’s totally innocuous.

It may simply indicate decomposing media, but any fungicide should help.

wow thank you, that is so interesting, just read everything on i could find on this! is there any way to find out if its a good or a bad fungus? If there is a real symbiosis happing i would feel very bad to destroy this friendship. i normally use rainwater which i cook up before giving it to my orchids. could this be, how the mushroom found its way ?

and do you have a personal opinion about getting rid of it or keeping it?

thank you so much for your help, i'm quite lonely in this hobby i picked up so it feels good to talk to someone about it!

you have spider mites.
Sometimes they can be too small to spot with the naked eye but I can see the damage to the leaves and tiny black droppings too.

I also though about that but inside a terrarium with a humidifier that probability is low.
What are the humidity values?
That plant is inside the terrarium for how long?

humidity is always between 75-85% and the plants which have the webs are in there for at least 6 months

that makes the probability 3 times higher. Mites hate airflow, drafts and low humidity. IT dries them out. Provide a warm humid terrarium and they explode (in numbers).
It could not be mites but to use the argument that they are living in their preferred environment as the probability being low is not a good argument imo.

Ummmm.... spider mites thrive in low humidity, not high humidity.

OT, I think you are not correct. Mites thrive in low humidity. One way to control their population is to increase RH.

ok, well, then the OP has mites that haven't exploded in numbers yet because they are being kept under control by high humidity. Either way mites are horrible and should be erradicated not just controlled. There are certain spiders that are completely harmless that can make webs like those too though but I would not take the risk myself and its the damage to the leaves that is more important than the webs which could even be remnants of a mite presence that died because of high humidity. We will have to wait for the OP to give an update.