Powdery mildew?

Datcoldboi

Well-Known Member
You can see some spots on the main stalk & I noticed some spots on some of the leaves. Not sure if it bugs or powdery mildew. My plants are currently budding. Hoping its nothing to worry about, any tips or suggestions?


20210124_091534.jpgI
 

Rurumo

Well-Known Member
When in doubt, hit it with some potassium bicarbonate or "greencure". Sometimes you can nip PM in the bud in the early stages before it spreads too much. I'm pretty sure it's 1 Tablespoon per gallon-I usually mix up a smaller amount and combine it with neem oil (but not in flower) and a little Dr Bronners soap. Greencure is more expensive but it has some extra stuff in it beyond Potassium Bicarb to substitute for the oil and soap. I'd also spray those with Southern Ag Biological Fungicide-though it works better for prevention than treatment. If it gets worse there are harsher things you can do.
 

Datcoldboi

Well-Known Member
What is your temp and rh? Good air flow?
Inside the tent rh is about 53% & 77 deg outside the tent its 43%. & 79 deg almoat always.

I have 2 6 in fans one on the floor near one of the open air vents & another up above the canopy

Also have a 6 in ac infinity fan & carbon filter. Got it set on 7 at the moment
 

Datcoldboi

Well-Known Member
Im growing in ffof & ive been watering them about a quart to a liter of water per day ph'd to 6.5 everytime. Idk if thats too much or what but thats what ive been doing. My ppm has been ranging 800-1400 oh & there in 3 gal pots
 

Partyslayer1

Well-Known Member
Im growing in ffof & ive been watering them about a quart to a liter of water per day ph'd to 6.5 everytime. Idk if thats too much or what but thats what ive been doing. My ppm has been ranging 800-1400 oh & there in 3 gal pots
That's a really frequent water schedule. You aren't giving topsoil time to dry out, and humidity is high. Perfect conditions for mold. Water when your pot is DRY, it will help root growth, also. This will help avoid root rot. Try rubbing some watered down milk on the stem. Or make a Neem solution. Don't spray...rub.
 

Datcoldboi

Well-Known Member
That's a really frequent water schedule. You aren't giving topsoil time to dry out, and humidity is high. Perfect conditions for mold. Water when your pot is DRY, it will help root growth, also. This will help avoid root rot. Try rubbing some watered down milk on the stem. Or make a Neem solution. Don't spray...rub.
Will do. Thanks for the advice. Think im gonna use this mother earth coco next run instead of ffof
 

Datcoldboi

Well-Known Member
That's a really frequent water schedule. You aren't giving topsoil time to dry out, and humidity is high. Perfect conditions for mold. Water when your pot is DRY, it will help root growth, also. This will help avoid root rot. Try rubbing some watered down milk on the stem. Or make a Neem solution. Don't spray...rub.
I thought with autos you want to feed/water every day?
 

Partyslayer1

Well-Known Member
I thought with autos you want to feed/water every day?
Maybe on DWC or hydro. When using soil, the plants still absorb water/nutes at the same rate...auto or photo. They have different nute feeding schedules due to the early flower cycle of auto. If you want to water every day (don't), then I suggest adding a bunch of perlite/vermiculite for increased drainage.

I'm running 1000w hps with EB 420/Super Coco. 7 gallon pots. I water (typically) 3-4 liters of tap that has been sitting in an aerated bin ever 72-84 hours. I test out at 6.35-6.75 pH (let it fluctuate), and at week 4 of flower 850-1000ppm TDS. EC is about 1.4-1.7.

Just be really present with your plant and be aware of what it needs day-to-day.
 

Datcoldboi

Well-Known Member
Maybe on DWC or hydro. When using soil, the plants still absorb water/nutes at the same rate...auto or photo. They have different nute feeding schedules due to the early flower cycle of auto. If you want to water every day (don't), then I suggest adding a bunch of perlite/vermiculite for increased drainage.

I'm running 1000w hps with EB 420/Super Coco. 7 gallon pots. I water (typically) 3-4 liters of tap that has been sitting in an aerated bin ever 72-84 hours. I test out at 6.35-6.75 pH (let it fluctuate), and at week 4 of flower 850-1000ppm TDS. EC is about 1.4-1.7.

Just be really present with your plant and be aware of what it needs day-to-day.
Im gonna try cutting a couple days of watering out see what happens. Ill water with nutes monday & wed. Nothing tues & thursday, plain water friday, nothing saturday & sunday & repeat. Or something like that
 

Partyslayer1

Well-Known Member
Im gonna try cutting a couple days of watering out see what happens. Ill water with nutes monday & wed. Nothing tues & thursday, plain water friday, nothing saturday & sunday & repeat. Or something like that
Be careful. Plants don't operate on your schedule...they need water/dryness at different times. They will change their needs as they gtow.
 

Datcoldboi

Well-Known Member
Heres an update on my autos. I sprayed them with a 3:1 water & milk solution. Hopefully the PM isnt gonna be a problem. They have been flowering since around January 7th or so. Were planted 11-30. Can anyone tell me how there looking? This is my first grow. Oh, & I was thinking of harvesting around 1st of march?20210202_141744.jpg20210202_141734.jpg20210202_141721.jpg20210202_141710.jpg20210202_141705.jpg20210202_015453.jpg20210202_015440.jpg20210129_002930.jpg
 

Datcoldboi

Well-Known Member
Heres an update on my autos. I sprayed them with a 3:1 water & milk solution. Hopefully the PM isnt gonna be a problem. They have been flowering since around January 7th or so. Were planted 11-30. Can anyone tell me how there looking? This is my first grow. Oh, & I was thinking of harvesting around 1st of march?View attachment 4814509View attachment 4814511View attachment 4814517View attachment 4814518View attachment 4814522View attachment 4814525View attachment 4814531View attachment 4814535
 

Partyslayer1

Well-Known Member
Heres an update on my autos. I sprayed them with a 3:1 water & milk solution. Hopefully the PM isnt gonna be a problem. They have been flowering since around January 7th or so. Were planted 11-30. Can anyone tell me how there looking? This is my first grow. Oh, & I was thinking of harvesting around 1st of march?View attachment 4814509View attachment 4814511View attachment 4814517View attachment 4814518View attachment 4814522View attachment 4814525View attachment 4814531View attachment 4814535
Longer than March 1, looks like 5 more weeks. At least.

Don't spray your flowers. With anything. Just fan leaves. You can put on gloves and hand rub the sugar leaves.

Might need azamax or a little Green Clean.
 

curious2garden

Well-Known Mod
Staff member
Heres an update on my autos. I sprayed them with a 3:1 water & milk solution. Hopefully the PM isnt gonna be a problem. They have been flowering since around January 7th or so. Were planted 11-30. Can anyone tell me how there looking? This is my first grow. Oh, & I was thinking of harvesting around 1st of march?View attachment 4814509View attachment 4814511View attachment 4814517View attachment 4814518View attachment 4814522View attachment 4814525View attachment 4814531View attachment 4814535
 

Datcoldboi

Well-Known Member

curious2garden

Well-Known Mod
Staff member
Do you still see signs of PM or does it look okay? Some of the visible white stuff you see may be the milk solution i sprayed on it. It left a waxy type look on the leaves
You really don't want to smoke casein protein hence why I would not use milk for IPM. That's why I suggested Regalia which is an OMRI certified, biofungicide.
 

Datcoldboi

Well-Known Member
Okay, so I ordered some Green Cleaner. I applied it as directed about 24 hrs ago. Just checked in today & noticed some discoloration on some of the leaves when the light hits it just right but I can't tell if it PM or just a residue left behind from the Green Cleaner. Can anyone tell me if they clearly 100% still see signs of PM? I hate to do it so late in flowering but I'm ready to be done with this run, ready to start over 20210212_005658.jpg20210212_005706.jpg
 
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