Help whats this on my leaf?

[Belliott]

Im not sure if this is powdery mildew or small drops of synthetic fertilizer that got on my bottom leaves yesterday. It's only the bottom leaves of the 3 i didnt cut the 2ed nodes on. It's been high humidity here and off and on rain they are in a greenhouse with a oscillating fan on 24/7
Thanks for the help

On day 33 now

Started inside in plugs of peat and coco in a humidity dome with lights. Moved to 16 oz cups with the mix. For about 2 weeks, then out side to pots on june 2. Hardening them off now. Half strength feed week one feed schedule. Cal-Mag is part of the Nutrient system from this company

Strain - GG4 Sherbert Fast Flower (fast buds)
# of Plants - 4
Grow Type - Cana Coco
Grow Stage - Vegetative
Bucket Size - 10 Gallon Fabric
Nutrients - Ventana Plant Science - Complete Nutrient Line Kit
Medium - 50% coco coir ,30% pumice ,15% worm casting ,5% biochar
EC - .5
PH - 6.5
Greenhouse Square Footage - 10'x6.6'×6.6' with Oscillating Fan
Room Temperature - 50s- 80s
Lights - Sun (Minnesota S.E.)
Temperature - 50s- 80s
RH - 40s - 99%
Pests - None Known

Strain - Gorilla Zkittlez Auto (fast buds)
# of Plants - 4
Grow Type - Cana Coco
Grow Stage - Vegetative
Bucket Size - 5 Gallon Fabric
Nutrients - Ventana Plant Science - Complete Nutrient Line Kit
Medium - 50% coco coir ,30% pumice ,15% worm casting ,5% biochar
EC - 1 (with fertilizer)
PH - 5.8
Greenhouse Square Footage - 10'x6.6'×6.6' with Oscillating Fan
Lights - Sun (Minnesota S.E.)
Temperature - 50s- 80s
RH - 40s - 99%
Pests - None Known

 

[seaofgreen18]

Howdy,looks like Powdery Mildew to me theres alot of posts here on how to remedy that prevention is !

 

[Bill284]

Just curious, have you sprayed anything on the leaves?
Otherwise probably PM.


Stay safe
Bill284

 

[Belliott]

Someone said it looks like it might be drops from guttation. It does look like drops to me too. As this is my first grow I'm trying to be very vigilant and get experienced growers options before I jump to conclusions. Thanks every body for taking the time to look and comment. I will keep a eye on them to make sure that it is indeed drops of a liquid.

 

[Bill284]

Someone said it looks like it might be drops from guttation. It does look like drops to me too. As this is my first grow I'm trying to be very vigilant and get experienced growers options before I jump to conclusions. Thanks every body for taking the time to look and comment. I will keep a eye on them to make sure that it is indeed drops of a liquid.

Do they wipe off easily?
Does it look like there are more today than yesterday?


Stay safe
Bill284

 

[Belliott]

Went out today and found more on new leaves. I tried to whip it off with light pressure and water. Here is a before and after. The left side I use pressure with my finger the right I just got wet

 

[Janluna]

I think it’s PW.
But hear me out…
What about Mealybugs?

 

[Belliott]

I think it’s PW.
But hear me out…
What about Mealybugs?

I didn't see mealybugs I did 30 & 60× jewelers loop multiple spots. I am going to go out at night and check to see if there is drop on the tip from guttation. It has been happening overnight. If anything I'm still going to get some Suffoil-X

 

[Sueet]

I don't think it looks like PM. Definitely does look like drops of something.

 

[013]

Yeah, think that was my bad on the guttation mention. Normally guttation is similar to a drop of sap, honey like appearance- and it’s usually seen in heavy laden plant biomass like fat colas but not on fan leaves tho. Typically it’s not wide spread on the plant

When rh swings to 99% then your greenhouse plastic is sweating… droplets form and rain down on the plant

However in the last pic of the first batch of photos- looks like webbing or a fine filament. Wasn’t thinking about the borg but maybe a critter egg clutch? might be cool to see if it incubates?

What are you doing for ipm?

My aim is to nail it down in veg and try to cruise thru flower without, but Safers Soap is good stuff and you can always bud wash

 

[Bill284]

Citric acid in water helped me when I had a similar issue.
How is your humidity?



Stay safe
Bill284

 

[JiggiLotus]

One way to test if it's PM you can just wipe it off and check it a few hours later or the following morning. If it's PM it'll definitely be back just like it was. I personally think it looks more like something dripped and dried up on the leaf.

 

[Justin Goody]

May not be PM yet but I’d treat it as such until you figure out what it is. Otherwise it spreads like wildfire every day, through spores .
Better safe than sorry.

 

[Belliott]

Its been stupid humid 55-90% i went out earlier and yes there was droplets on the leaf tips, not all the tips but here and there just like the white dots thats been showing up when i have been checking on them later in the day. I will definitely still be keeping a vigilant eye on them for now. I ordered som Suffoil-X to keep on hand. Thanks everyone

 

[bluter]

give them a quick treatment with a lemon or milk spray. its costs little and it is better to do that than lose the plant. not sure if it's PM, it looks to be fungal but different.