White powder on my fan leaves?

Hey guys I had a quick question, I have some og kush on veg 2 weeks in under 400w metal halides and they are growing immensely, but I realized as of lately some of the fan leaves seem to collect or have some sort of white powder on the fan leaves, I ws thinking maybe thc already but its only 2 weeks into its grow, the ph is 7.0 I am growing in a 3parts foxfarm ocean forest organic nuted soil and 1 part perlite. Also how would I add mexican bat guano and should I? if i was to add guano should I make a tea with it or should I just add into the water? Thanks all for your comments

Could be powered mould.

Any pics

powdery mildew. mist with peroxide. lower your humidity. get more fans.

could also be fertiliser salts after evaporation? do you foliar feed

Do what fdd said or your plants will die,its mould

Your ph is kinda high too.

with peroxide do you dilute it

caligreen said:

with peroxide do you dilute it

Click to expand...

yes...1 table spoon per gallon of water...

okay rad.. i read that i helps with oxygen and cleansing the water of bacteria.. what percent peroxide do you use.. i know there is some that is 3% and others at 30%... here is another question for you calgrown... what do you think about a hydrosetup with two plants and another 2 soil plants in the same area... i thnk it fine but just thought id ask for any good personal experience insight

my buddy has the same thing going on. Are you using a aeropontic system? cuz he's gettin that problem on his clones, i told him to take a anti-bacterial soap and rub the leaves with a really watered done version to clean all that off then a day later clean with just water but drop your humidity and you'll be good! just need good air flow man and you won't need to buy a dehumidifier!

Sulfer burner+fans blowing on the bottom of plants=HAPPY!

Maybe its THC, J/k lol

so i still have it.. it has backed down a little after spraying it with a diluted solution of water and baking soda. i am working in a funny situation,, two plants ( trainwreck X Orange bud) in soil and one plant(hindu kush) aeroponics... the aeroponics has no problems its the two soil... my temperature has a little low for first week of flowering running at about 66-70 and humidity in the 43- 58 range... whats my problem please ask questions to help you help me...

hey this tyme sound like powder mold but of its in specs make sure your notgetting spider iyes early ...pain in the ass and appear as whitespecs

spider mites are not a concern to me... i have oil and ladybugs... the ladies look amazing on the flowering plant i should submit some photos... but amy way i think that took care of the problem

Use full cream milk and 2 teaspoons of pottasium bicarbonate not sodium bicarb,make sure you rinse it of after 4-5 hours and dont use it while the plant is under the lights.

no i am using both aeroponics and soil.... the soil plants are the ones with the powerder problems