White powdery mildew, hydrogen peroxide milk water??? Help.

G

Gibson's Grow 905

Member
Hi I have the start of white powdery mildew I think. Anyway I have the black saucers and elevators for my fabric pots. After watering plants I left the run off in the pots so its a white residue.. can I spray it with peroxide and kill it or tea tree oil or mix them with water? I was just gonna pour a bit of one or the other in to the saucers.
Also is leaving the run off in the saucer pots a bad thing.. I just figured it would evaporate. Anyway if anyone can help thanks.
A friend said use 60ml peroxide with 60 ml of water and mix with 1 gallon of water or 5 liters to spray everything down. Is this correct information and good for the plants ?
Also.. I got/ waiting for a dehumidifier and a air purifier to help fix the issue. Will it help any ideas thought would be appreciated. Thanks!
 

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jondamon

jondamon

Well-Known Member
Gibson's Grow 905 said:
Hi I have the start of white powdery mildew I think. Anyway I have the black saucers and elevators for my fabric pots. After watering plants I left the run off in the pots so its a white residue.. can I spray it with peroxide and kill it or tea tree oil or mix them with water? I was just gonna pour a bit of one or the other in to the saucers.
Also is leaving the run off in the saucer pots a bad thing.. I just figured it would evaporate. Anyway if anyone can help thanks.
A friend said use 60ml peroxide with 60 ml of water and mix with 1 gallon of water or 5 liters to spray everything down. Is this correct information and good for the plants ?
Also.. I got/ waiting for a dehumidifier and a air purifier to help fix the issue. Will it help any ideas thought would be appreciated. Thanks!
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You’re on about the white stuff in the saucers right?

That’s just dried nutrient salts after the water has evaporated.

in my experience leaving nutrient solution in the saucers only serves to return it back to the medium and some left over salts dry up and turn white.
 
G

Gibson's Grow 905

Member
Gibson's Grow 905 said:
Hi I have the start of white powdery mildew I think. Anyway I have the black saucers and elevators for my fabric pots. After watering plants I left the run off in the pots so its a white residue.. can I spray it with peroxide and kill it or tea tree oil or mix them with water? I was just gonna pour a bit of one or the other in to the saucers.
Also is leaving the run off in the saucer pots a bad thing.. I just figured it would evaporate. Anyway if anyone can help thanks.
A friend said use 60ml peroxide with 60 ml of water and mix with 1 gallon of water or 5 liters to spray everything down. Is this correct information and good for the plants ?
Also.. I got/ waiting for a dehumidifier and a air purifier to help fix the issue. Will it help any ideas thought would be appreciated. Thanks!
Click to expand...
Southernontariogrower said:
Powdery mildew starts as white spots on leaves. Salt buildup from evaporation. Lmao! Pm ha ha!
Click to expand...
So is this nothing to worry about? Or should I always suck the water/nutes out of the saucer pans so it don't evaporate back in to the air and on the leaves ?
 
G

Gibson's Grow 905

Member
Rurumo said:
Yes, it's a good practice to remove the run off. Try to keep your RH below 55% to help prevent PM and other fungus from appearing during flower.
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Okay. Well I just woke up and sprayed the plants with 60ml Hydrogen peroxide, 60ml of Milk haha with 5 liters of water. Also sprayed tent down with pump sprayer. So hopefully all is good I have the side window of tent open a bit with a Mastercraft highvolocity fan in the tent. So hoping all will be good until I get my bigger proper dehumidifier and air purifier. Thanks everyone for all your help!!!
 
G

Gibson's Grow 905

Member
Fan blowing into tent. To create positive pressure 1 for the extra space and 2 so the oscillating hurricane don't get stuck and keep clicking when ac infinity exhaust sucks in tent.
Air purifier set up outside of tent in room.
Black high velocity Mastercraft fan circulating air with 16 in hurricane fan oscillating.
AC infinity T6.
Hopefully after spraying everything with peroxide all will be disinfected. With plenty of air flow and hopefully all will be good. Just waiting now for the Canadian Tire Noma 50 pint dehumidifier to arrive. Hopefully this is all I will need.
 
G

Gibson's Grow 905

Member
Southernontariogrower said:
Looks good, how much height you got to work with?
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Light To Plant 20-21" approx 18" on 1 plant.
Ceiling To Light 21" minus carbon filter.
1 plant is 1'6" other 2 plants are 2' 2-3 inches at the moment and I think its about 2 to 3 weeks of flower. I wanted it all to grow to 3 feet my buddy said they will be to bushy as is. So I flipped to 12/12 ALSO..
I did mainlining and topping during this grow
 
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