Sulfur Residue or PM?

[BigBloomingBuds]

Hey everyone,
I have searched and cannot figure out what is on my leaves. I am hoping someone here can help. I had someone cover my grow for 9 days and when I got back all of my plants have this (pictured) on the leaves. I did not have any signs of powerdy mildew before. I had my help spray the plants with Sulfur. This is the first time I’ve used this and don’t know if the leaf has a residue from the spray or if I’m 9 days PM has taken over my room. Has anyone seen this before?

 

[Newbie2019]

I am new so I would wait for others to comment but I do have a question for you. Have you tried foliar spray of just water to see if some of the white runs off the leaves?

 

[Mr.jiujitsu]

Looks like residue to me. What’s your humidity and air flow like?

 

[Mr.jiujitsu]

If you have a scope that will make it easy to tell

 

[KLight03]

I'm new to this, but based on what I've had on houseplants before, that looks like the dreaded white fungus. I hope not. @Mr.jiujitsu, what sort of scope would be required?

 

[BigBloomingBuds]

Looks like residue to me. What’s your humidity and air flow like?

Humidity is pretty consistently 65% and all the leaves are moving with the fans I have running.

 

[BigBloomingBuds]

If you have a scope that will make it easy to tell

I do have a scope but I don’t know what I would be looking for to know the difference?

 

[Mr.jiujitsu]

I do have a scope but I don’t know what I would be looking for to know the difference?

If you have a scope with camera take pics. If it is rubbing alcohol in a spray bottle can help. Wipe the leaves off and see if it comes right back....

 

[BigBloomingBuds]

If you have a scope with camera take pics. If it is rubbing alcohol in a spray bottle can help. Wipe the leaves off and see if it comes right back....

Thank you so much.

 

[oldskol4evr]

from splatter marking ,im thinking the sulfur,a spray bottle with reg water and wash it off ,if it is sulfur it wont hurt your soil with the water runoff,your soil has sulfur in it

 

[Dirtbag]

That's just residue from the powdered sulphur. 100%. You can see how its formed where there were water droplets. My plants look exactly the same when I spray them with wettable powdered sulphur. Looks like good coverage too. Help done good.

 

[bankcee]

having the same issue.. any one think this is pm or sulfur residue.. i’ve never sprayed with sulfur but the company that i purchased these clones say they do treat with sulfur