Probably not the right area of the site but I had a section of the garden that's been in accessible for the past few weeks. Powdery milldew took over semi aggressively. Was thinking just hosing them off to wash the bulk of the spores off a few days before harvest or trying the Cervantes suggestion of a dunk in diluted hydrogen peroxide... Any opinions?
Hydrogen peroxide vs hosing pm down.
- Thread starter shauncon
- Start date
thumper60
Well-Known Member
BOTH!!
I had a tough time with wpmd this season and I opted to doing a peroxide bath at time of harvest which washed the majority of the visible mildew off. This was the first time I have done it and think it’s worthwhile I will likely be using the same process in the future regardless of what the plants look like at time of harvest. It’s amazing what washes off not just the mildew but all sorts of bugs and crap came out.
Sir Napsalot
Well-Known Member
A good spray of 3% hydrogen peroxide will burn the PM off, but will also weaken the plant's ability to resist reoccurence, necessitating frequent reapplication
IMO it's better to kill the shit before you harvest rather than rinsing, although I have rinsed PM affected bud to good effect
IMO it's better to kill the shit before you harvest rather than rinsing, although I have rinsed PM affected bud to good effect
doniawon
Well-Known Member
Do not wash your buds.
I've tried. Will ruin it.
Don't was them either. Water will make it worse.
Treat w green cleaner, or milk/water.
Sodium bicarbonate is best Imo.
Caps bennies maybe good too?.
Adding silica to feed can help, add a fan and/ oro a dehumidifier if possible.
Remove all areas with visable spores first and foremost.
I've tried. Will ruin it.
Don't was them either. Water will make it worse.
Treat w green cleaner, or milk/water.
Sodium bicarbonate is best Imo.
Caps bennies maybe good too?.
Adding silica to feed can help, add a fan and/ oro a dehumidifier if possible.
Remove all areas with visable spores first and foremost.
Sometime there is so much wpmd it’s impossible to spot treat because you have too much plant area to treat it would take forever or if it shows up early in the plants life it’s too hard to get ahead of.
Anyway here is a video of Jeorge Cervantes who probably as experienced as anyone going through a breakdown of how it is done.
I certainly wouldn’t feel comfortable smoking a plant what had wpmd and wasn’t treated properly.
Anyway here is a video of Jeorge Cervantes who probably as experienced as anyone going through a breakdown of how it is done.
I certainly wouldn’t feel comfortable smoking a plant what had wpmd and wasn’t treated properly.
Awesome, did you leave any branches in dunked for smell and look comparison?
Harvest needs to be in the next five days reoccurrence isnt a worry, are you saying 3% hydrogen peroxide 97% water ?
Harvest is over the next few days, afraid of spraying anything but water. I'm outdoors area is way to large to consider fans or any climate change.
Yea flowers are at the end and large to the point the fan leaves are deep into flower, worried about touching spored flying around after.its.dry and the leaves curl up. Can't wet trim it either because of time.
Sir Napsalot
Well-Known Member
The brown bottles of hydrogen peroxide you get at the store are normally 3% so I'm saying you can spray it straight from the bottle
Also, wear gloves when you spray because it will affect your skin
p0opstlnksal0t
Well-Known Member
BAQUACIL for peroxide in bulk, i typically chop a plant whole and mix my own peroxide water in a large 90g trash can dedicated to this. I dunk and agitate the whole plant for a minute or two, pull and drip dry. then i blast the drying plants with heavy fans for 2 hours or so when i hang to dry. I rarely ever see PM but its amazing to see what crud will wash off your plants.
simpleleaf
Well-Known Member
Which Baquacil®? Sanitizer and algistate, oxidizer, or cdx® product? I'd guess the oxidizer, but best to get the answer from you. What are your mix ratios? Do you mean a 90 gallon can? How much do you add per a full trash can of water? Have you ever tried to convert the dip solution to a percentage of hydrogen peroxide?
I used 3% peroxide at a rate of 500ml per 10 000 ml So like a 20:1 ratio water to peroxide.
I washed the whole plant and it smells just the same as they did last year same plant just no wash last year as no mildew.
It’s about learning lots of smarter more experience people use the process I would watch a few tutorials on YouTube.
I spent a lot of time trimming as much visible wpmd off before the wash as well.
I washed the whole plant and it smells just the same as they did last year same plant just no wash last year as no mildew.
It’s about learning lots of smarter more experience people use the process I would watch a few tutorials on YouTube.
I spent a lot of time trimming as much visible wpmd off before the wash as well.
doniawon
Well-Known Member
Green cure!. Only brings the pH way down and kills the pm. It is essentially only water!
If you wash your buds in peroxide and water, please post afterwards!.
I promise you'll b pissed off.
Ole Jorge had good info a decade ago, but not everything he preached was gospel..
The adding molasses to water increases yeilds 20% picture comes to mind
waterproof808
Well-Known Member
H202 will oxidize your trichomes and make your flowers look brown.
p0opstlnksal0t
Well-Known Member
http://www.baquacil.com/products/oxidizers
its 1 gallon @ 27.5% Hydrogen Peroxide per SDS: https://teddybearpools.com/wp-content/uploads/2015/02/Oxidizer.pdf
use the formula C1V1=C2V2 formula where C1 is concentartion of stock solution, V1 is volume of stock solution, C2 is concetration which you required and V2 is volume which you required. for example u want to make 100mL of 3% H2O2 from 6% H2O2. use this formula u will find that add 50 mL distilled water to 50 mL of 6% H2O2.
down and dirty calc is 1 part baquacil to 10 parts water to get roughly 2.75% I usually double this to get my peroxide wash around 1.375% so 1 gallon baquacil to 20 gallons of water I fill a 96 gallon toter trash can a little more than 3/4 full roughly 80 gallons to 4 gallons of baquacil. make sure to fill the trash can up first and add the h2o2 to the water not vice versa, mix real good with a wood paddle or piece of pipe. this is my wash/dunk for whole plants. i can typically dunk an entire half pound to 2 pound (rough dried yield not wet) plant with this method. monster outdoor multi pound plants will need a bigger bason and probably a hoist/chain pulley to pull a full dunked plant out of the peroxide wash. make sure you blast dry the external water asap so you dont get moldy bud.
p0opstlnksal0t
Well-Known Member
i have not noticed this on fresh chopped biomass. ive scoped trichomes before and after as well. I have read that this browing/oxidation can happen on already dried plant matter though.
pulpoinspace
Well-Known Member
i wash my buds the same way as in that video and i love em. i dont notice any smell/color/taste change whatsoever
I’ve never experienced this. I also don’t understand how, at a chemistry level, h2o2 would hinder or accelerate oxidation of trichs since they aren’t water soluble, they themselves actually repell water. Also since you are only submerging the plant for a brief time (less than 5 minutes ), I can’t fathom that any oxygen will be able to dissolve into the trichs.
I have done this method to my last two harvests and had great results. Here’s a picture of the blue cheese buds. No discoloration or increase in amber trichs
