Powdery mildew?

Datcoldboi · Jan 25, 2021

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?

I

ÒÒlegilizeitÒÒ · Jan 25, 2021

What is your temp and rh? Good air flow?

Rurumo · Jan 25, 2021

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 · Jan 25, 2021

ÒÒlegilizeitÒÒ said:
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 · Jan 25, 2021

Guess ill mix up some water and baking soda & see what happens

Datcoldboi · Jan 25, 2021

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 · Jan 25, 2021

Datcoldboi said:
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 · Jan 25, 2021

Partyslayer1 said:
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 · Jan 25, 2021

Partyslayer1 said:
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 · Jan 25, 2021

Datcoldboi said:
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.

ÒÒlegilizeitÒÒ · Jan 25, 2021

Datcoldboi said:
I thought with autos you want to feed/water every day?

Autos are still cannabis.
They don't have much different growing requirements
They don't need more or less water than a photo would.

Datcoldboi · Jan 25, 2021

Partyslayer1 said:
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 · Jan 25, 2021

Datcoldboi said:
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 · Feb 2, 2021

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?

Datcoldboi · Feb 2, 2021

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 4814509 View attachment 4814511 View attachment 4814517 View attachment 4814518 View attachment 4814522 View attachment 4814525 View attachment 4814531 View attachment 4814535

Partyslayer1 · Feb 2, 2021

Datcoldboi said:
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 4814509 View attachment 4814511 View attachment 4814517 View attachment 4814518 View attachment 4814522 View attachment 4814525 View attachment 4814531 View 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 · Feb 2, 2021

Datcoldboi said:
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 4814509 View attachment 4814511 View attachment 4814517 View attachment 4814518 View attachment 4814522 View attachment 4814525 View attachment 4814531 View attachment 4814535

Regalia® | Control Powdery Mildew | Pro Farm Group - Formerly Marrone Bio Innovations

Regalia® Bioungicide delivers improved crop yield and harvest quality by stimulating a plant’s ability to fight diseases. Effectively control Powdery mildew.

marronebio.com

Datcoldboi · Feb 2, 2021

curious2garden said:
Regalia® | Control Powdery Mildew | Pro Farm Group - Formerly Marrone Bio Innovations

Regalia® Bioungicide delivers improved crop yield and harvest quality by stimulating a plant’s ability to fight diseases. Effectively control Powdery mildew.

marronebio.com

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

curious2garden · Feb 3, 2021

Datcoldboi said:
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 · Feb 12, 2021

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

Powdery mildew?

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