Phal w/Fusarium balls and miniscule beetles, what to do?

[King_of_orchid_growing:)]

Those orange balls may very well be a fruiting Fusarium, but...

Regardless of whether those are Fusarium in sexual stage or not, at this point, it is not too big a deal. The reason why is that the area where those fruiting bodies are growing is on a portion of the roots that have already been compromised.

These photos demonstrate what I mean by the Fusarium not necessarily being the primary causal problem for an orchid's demise. Notice how much of the plant is not really affected by this fungus at this point. Fusarium was always there, it was just a matter of the plant's immune system being strong enough to deter the fungus from growing like crazy and overtaking the plant. If the plant declines further, (let's just say more of those roots get damaged and die), you will begin to see more and more of the effects of a Fusarium infection when it originally was not the initial cause of the problem. In this case, the initial cause of the problem was that the moss was going bad. The deteriorating potting media caused the start of some root problems. If left unattended to, increasing problems with the root system will eventually cause the plant's immune system to decline. When the plant's immune system cannot handle the pathogens in the growing environment that it would've normally been able to fend off if it wasn't stressed so badly, that's when the Fusarium will take over and eventually finish off the badly weakened plant.

This Phal is easily salvageable. There's no need to toss it out or cut it up because you see Fusarium balls growing. Fusarium or not, if you make it inhospitable for the Fusarium to grow, it will not grow well. When Fusarium is not growing under favorable conditions, it gives the plant's immune system a break and an opportunity to recover.

As was advised earlier, please change the potting media out for fresh media. Whether you choose to grow in moss is up to you as was said prior, (and I also tend to recommend using large grade bark for ease of usage), but that moss the plant's growing in now has got to go asap.

Quite honestly, entomology is not one of my hobbies. I do not know what species of beetle it is, nor do I know whether it is a beetle that eats plants or if it feeds on pest insects. All I can say regarding this animal is, if you change out the potting media to fresh media, you may not have to worry too much about it returning. The conditions that this insect may have found inviting may no longer exist if you do a potting media change.

When you change the moss, please try to do as little damage to the roots as possible to not set the plant back.