^ That's what has been on my N. densiflora x spectabilis. I never see them move around so I didn't suspect that's what it was. They are really, really tiny, so tiny you can't even tell what they are. They were pretty much all over the leaves of the plant. Luckily, they didn't spread to the rest of my collection. I wiped all that I could see off of the plant... They never left any of those patches like in the pic, all I saw were little tiny white speckles everywhere. Not on any of the neighboring plants. The infected plant had been with the rest of the collection for four months, so...
I'm not going to throw away the entire collection... It's all been exposed, there's nothing I can do now.
Yesterday only one plant was infected..today all are?
no, you dont know that they are all exposed, and that there is nothing you can do now..
throwing away the one plant is still the best solution IMO..
but if you want to treat the one plant (rather than throw it away) then at least isolate it from the resto of your collection..but dont assume your whole collection is infected if you have no evidence of that..
How many plants are we dealing with?
can you easily move the one somewhere else?
Scot