Peroxide to kill powdery mildew in flower?

R

RCJR

Active Member

• May 24, 2024

• #1

I’ve read a bunch of different percentages to spray on my plants that’s are in flower. I’m using 3% solution from the store. I’ve read 9 parts water with 1 part peroxide (h202) or 5 to 1. How many days should I spray it? I don’t have much just trying to get this harvest to completion. About 6 week in flower.

 

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sdd420

Well-Known Member

• May 24, 2024

• #2

Use powdered sulphur at 1 tbs per liter spray and repeat a week later

 

SBNDB

Well-Known Member

• May 24, 2024

• #3

Check out zerotol its a peroxide product you can spray all the way through flower

 

cannabiscrusader

Well-Known Member

• May 24, 2024

• #4

Sulpher will kill it like @sdd420 said. This crap will keep it gone for next to nothing.

 

thumper60

Well-Known Member

• May 25, 2024

• #5

sdd420 said:

Use powdered sulphur at 1 tbs per liter spray and repeat a week later

Click to expand...

Do you no if powdered sulfur will pass thur a pump sprayer seems it might plug up.

 

cannabiscrusader

Well-Known Member

• May 25, 2024

• #6

thumper60 said:

Do you no if powdered sulfur will pass thur a pump sprayer seems it might plug up.

Click to expand...

It does, you have to continually shake it while spraying. It leaves a dusting of sulpher, so only in veg. The arber is safe all the way through flower and knocks it right out.

I know this wasn't directed at me, but my tea bag label told me today again that free thinkers never charge for advice. Thank you Salada tea

 

laddyd

Well-Known Member

• May 25, 2024

• #7

You might also try bicarbonate of soda mixed with a little dishwashing soap.