Help! Persisting Mold in All repotted Phalaenopsis and Cattleya

[Roberta]

Horticultural oil will do pretty much the same thing as Neem... smother the pests. The Neem may have some more lasting repellant effects (or at least it smells like it...) The mix that you used is fine. Now, put it on your calendar to do it again in about 5 days. And then 5 days after that. And so forth... The "contact" spray kills the adults that it hits. Hidden ones may survive, and also larvae and eggs will survive. If you are persistent, you reduce the adult population at each round. In short, "One and you are NOT done".

[nuriko1set]

Originally Posted by Roberta

The mix that you used is fine. Now, put it on your calendar to do it again in about 5 days. And then 5 days after that. And so forth... The "contact" spray kills the adults that it hits. Hidden ones may survive, and also larvae and eggs will survive. .

Thank you! It's good to know that I'm finally doing something correct! I will be spraying with neem oil more more then.

---------- Post added at 07:32 PM ---------- Previous post was at 07:17 PM ----------

Originally Posted by estación seca

Don't cut off any roots. You can't tell which are truly dead.

Thank you Estacion! What about roots that are covered in white fuzzy mold?

I recently got a new Cattleya, and the roots were soooo dried up. I watered it fairly thoroughly, then a couple of days later, mold grew on a few roots. I don't think I can attribute this to my own actions, since all I did was water it. I didn't repot it yet.

Does the situation sound like the roots died and after I watered it just decomposed?