dwc gdp, blue dream, purple kush

hazer2099

Member
1st ever grow, with blue dream, gdp, purple kush. using growlab 80, 400w hps, air cooled reflector. doing hydro dwc with 3gal buckets. 6" exhaust 4" intake. have 2 4" air stones in each bucket and also have a power head in each bucket for extra water flow and oxygen. using gh nutes for blue dreams and gdp, and for purple kush using advanced nutrients. blue dream grow hella quick and it's my tallest. stands little over 2ft. gdp is next smallest, and purple kush is the smallest plant and stand 12" high. so far had no issue with 1st ever medical grow untill now. starting to notice powdery mildew on leaves. since i have 3 different size plants i had to get some wood and stack it so it can be somewhat even. it's been 4 1/2 week of flowering.
 

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I have white powder all over my vegging mango strain - my temp is between 73 - 83 f, and humidity is rarely over 50%, gets to 55% after a watering. how did this happen?
 
I have white powder all over my vegging mango strain - my temp is between 73 - 83 f, and humidity is rarely over 50%, gets to 55% after a watering. how did this happen?

Not sure. I started to notice it about 1st week flower but didn't think much of it at 1st but now it seems to have more. My temps run about the same as yours. My friend gave me some mildew control that smells a little like garlic. It supposed to be ok to use during flower so I sprayed some on last night just before lights out so will see what happens
 
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