I'm on week 5 of flower and I spotted some PM on a few Leaves It's not bad at all it's hard to notice it unless I really look for leaves with PM. Since my plant(s) are infected what could I do to control it or get rid of it? I tried spraying affected leaves with a milk/water mixture. I heard I could spray the whole plant even the buds with hydrogen peroxide and baking soda mixed with water. (I'm scared to spray anything on buds) So far no PM on any buds. My RH was in the high 50s low 60s but I bought a dehumidifier as soon as I spotted the PM and now my RH is 35%-45% and the room is at 72-75f lights on and 60-65 lights off I think I should possible get more fans circulating more air so the mold doesn't get worse? any tips-help would be appreciated
Powdery mildey week 5 of flower
- Thread starter Sam1510
- Start date
iHearAll
Well-Known Member
yikes touchy subject. I would advise the use of microorganisms to eliminate the threat. How long do you flower for? I recommend EM1 (you'l find it incredibly useful). It is a bottle containing various strains dormant microorganisms concentrated into a liquid. It cost about 15$ a bottle these days.
EM1 can be brewed into more bottles of EMe by mixing 1 liter of chlorinated water, 2 tsp of EM1 and 2 tsp of agricultural grade molasses. The molasses is best found online by the gallon (ebay is great). Pour this mixture into a 1 liter bottle and replace the cap tightly. Let it ferment for one week before beginning to use. Burp the bottle once at day 3 or 4. To treat PM with this, use as a foliar spray by diluting this and molasses into water 1:100 (2 tsp each per liter). You can apply this every week and it will produce CO2 directly on the leaves.
I would suggest diluting vinegar into water for the time being to change the pH of your leaves. Vinegar would evaporate whereas baking soda would leave behind a salt. miniscule but there. That being said the baking soda and peroxide would be totally fine. Consider the EM1 for future benefits and can be used up to the day of harvest absolutely no problem aw heck
EM1 can be brewed into more bottles of EMe by mixing 1 liter of chlorinated water, 2 tsp of EM1 and 2 tsp of agricultural grade molasses. The molasses is best found online by the gallon (ebay is great). Pour this mixture into a 1 liter bottle and replace the cap tightly. Let it ferment for one week before beginning to use. Burp the bottle once at day 3 or 4. To treat PM with this, use as a foliar spray by diluting this and molasses into water 1:100 (2 tsp each per liter). You can apply this every week and it will produce CO2 directly on the leaves.
I would suggest diluting vinegar into water for the time being to change the pH of your leaves. Vinegar would evaporate whereas baking soda would leave behind a salt. miniscule but there. That being said the baking soda and peroxide would be totally fine. Consider the EM1 for future benefits and can be used up to the day of harvest absolutely no problem aw heck
Does lowering my RH help battle it too? Or will it still spread even tho the RH is low?
Tim Fox
Well-Known Member
thats what i did last grow,,, right after lights out, i sprayed everything including the flowers,, mix it exactly like the directions of the web,, dont make it stronger,, and hose it down, make sure your fans are running all night to dry it back off,,, i made it to harvest,,So I could use the water mixed with baking soda and hydrogen peroxide? Should I avoid spraying the buds? I really don't wanna ruin any of my beautiful buds
then do a h202 bath after harvest then hang em
iHearAll
Well-Known Member
lower RH would help resist the growth but is not a complete solution.
weariedjuggler
Well-Known Member
You could also use serenade. Its an omri rated fungicide that you can use up until the last day of flower...