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Powdery mildew

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Nastyhabitz_
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Powdery mildew

Post by Nastyhabitz_ »

Good afternoon peeps. Ive started to get powdery mildew on some plants which are vegging ive been spraying with potassium bicarbonate which seems to kill it then its reappearing a few days later. Whats the best treatment for mildew please

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Re: Powdery mildew

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Nastyhabitz_ wrote: ↑
Sat Jan 16, 2021 3:08 pm
 Good afternoon peeps. Ive started to get powdery mildew on some plants which are vegging ive been spraying with potassium bicarbonate which seems to kill it then its reappearing a few days later. Whats the best treatment for mildew please

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What sort of growing do you do? May help for people wanting to help?

Natural ways are exactly what you've done, but use a few table spoons of apple cider vinegar to a Litre of water or 1/4 of a gallon. tea spoon of bicarb, done.

OHN's are woderful things if you're into Korean farming or organics and making your own nutrients.

Also depends if you're in flower or not?

Also tell everyone your RH fluctuations and temps, day and night etc.....
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Re: Powdery mildew

Post by JJ »

I've heard peroxide,or Scissors and lower RH
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Re: Powdery mildew

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JJ wrote: ↑
Sat Jan 16, 2021 3:20 pm
 I've heard peroxide,or Scissors and lower RH
You have to dilute it somewhat @JJ ???
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Re: Powdery mildew

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Also, get some garlic, crush it into some water and agitate it. Leave it for 24 hours, then dilute into your sprayer and apply.
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Re: Powdery mildew

Post by JJ »

Yes,,,not exactly sure how much, I did it to a outside grow,,,1-2 tsp. In a spray bottle is what I did,,,was in bud too,
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Re: Powdery mildew

Post by kbag »

Have you tried milk and water? As well as Bicarbonate of soda and a little soap.
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Re: Powdery mildew

Post by seymore_budz »

Milk works apparently. Powdery mildew is a SOB. The bicarb will knock it back but once it sets in it takes quite a few applications to get rid of it and many times I've failed to get rid of it completely. Sulphur seems to work the best but it's dirty shite.
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Re: Powdery mildew

Post by Marcus »

Pics would help.

How bad is it?

Are you sure it's PM and not just the plants sweating salts out?

Are you sure it's not residue left over from you spraying them?

Piccys please. I like piccys. :oik!:
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Re: Powdery mildew

Post by kbag »

Marcus wrote: ↑
Sat Jan 16, 2021 5:01 pm
 Pics would help.

How bad is it?

Are you sure it's PM and not just the plants sweating salts out?

Are you sure it's not residue left over from you spraying them?

Piccys please. I like piccys. :oik!:
Good point Marcus :clap:
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