Is this Powdery Mildew?

[Timboy5]

Never had PM before so I have no clue what it looks like. This is the worst leaf I have

 

[who dat is]

Maybe? It's odd in that it's only on the outer serrations though... Usually they look like a dusty finger or thumbprint randomly placed around on different leaves.

Out of curiosity, have you been spraying them recently or doing foliar sprays? That would explain it. They plants get loaded down with the spray and it naturally collects on the outer edges and the tip of the leaf where it dries and can leave a residue behind. I'm hoping that that's the reason.

 

[Timboy5]

yeah that is very odd thats where it is on all the leaves.

and no I havent foliard them. I dont think humidity has been getting over 50% either


ty for the reply btw

 

[Timboy5]

this is an undercurrent grow the only new thing I am using out of the usual is Mycostop (Streptomyces griseoviridis) and thats just at the root zone.

 

[A.C.A.B]

Probably oïdium

Probably oïdium

Hi !

This is not botrytis IMO, to me it looks more like oïdium. I never had this in my cab so I couldn't really help you on how to get rid of it, but you should find this info on the web,

Good luck,

ACAB

 

[JamieShoes]

no, thats water spots or something... try wiping it off and see if it comes back (is it everywhere or just that bit you photo'd?)

 

[mack 10]

Looks like some salts sweated through the leaf.
What nutes you usuing?

Its not pm.

 

[Daddysdank]

It doesn't look like PM ta me,especially in the magnified picture,looks like some type of over spray or some type of Nutrients may have gotten spilt on it,I can't say for 100% cause I'm not there to see but I'm pretty sure that's not PM..also when PM is magnified it looks kinda like lil hairs..but keep a close eye on it just in case..

 

[Betterhaff]

It almost looks like salt residue or something that was left behind after water evaporation from transpiration. The picture below is not cannabis but shows how water droplets can form due to transpiration.

 

[chronosync]

the placement is really odd. it looks almost deliberate. uniform size and shape. i have something similar on some leaves, but its def not the same. i cant figure out what it is either.

 

[Timboy5]

guys i would like to point out that this was caused by the humidity in the room building up at night on the leaves then when lights and fans kicked on it dried up.

Definitely not ideal situation for growing but I made it thru with no issues

 

[buzzmobile]

It is called guttation. Guttation water contains dissolved substances that remain when the water droplets evaporate.

 

[DONAJTHEIII]

It is called guttation. Guttation water contains dissolved substances that remain when the water droplets evaporate.

couldnt have said it better myself

 

[Roor22]

guys i would like to point out that this was caused by the humidity in the room building up at night on the leaves then when lights and fans kicked on it dried up.

Definitely not ideal situation for growing but I made it thru with no issues

Wow what a tool you don't check your temps and humidity when lights off? Surprised you don't have mold or PM. LOL