Working on my first grow and over the last month or so ive noticed these white spots on some leafs. there are 7 plants in the tent and only 5 of them have the spots (the 6th one is in DWC and has literally no sign of it,7th is an auto flower. also showing no signs of it at all) i've trimmed all the plants of any leafs with the whit spottage. cleaned the tent and the plants with water/neem oil for the last 3days. not really sure what to do at this point. thinking it might be salt buildup or water drying on the leafs. i am using sythetic nutes for the 5 plants that are showing it. the coco is using the same nutes and im trying dry amendments on the auto. so could it maybe just be from the nutes?
Powdery mildew?
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- #2
The one photo looks like mold definetly.
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- #4
the one with the small leafs? i agree. its just so odd how 2 plants dont have it. and my humidity is relatively low. so like. im so lost. LOL
Lime
Well-Known Member
You have oscillating fans going , exhaust and fresh air intake ?
Temp and humidity?
Temp and humidity?
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have 3 fans going plus an exhaust fan. temps are mid 70s constant. humidity from 50-mid 60s. (order a dehumidifier today because i did have a power outage the other day and hit 90% humidity but was only for an hour or 2)
You can spray with a baking soda and water or Hydrogen Peroxide mixed 1:9 with water.
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- #8
yea i've tried using neem oil/water but idk. i find it so odd that its not on all the plants. only the ones with bottled nutes.
Killian
Well-Known Member
You might want to examine your leaf s with a loupe. It looks like you might have Some kind of mites as well.
Some plants are more resistant than others.
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they're all the same strain though. well 3 of them are. and 1 of the 3 has nothing. i know its based on their genetics and all but its just so odd.
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- #12
if you're talking about those tiny white specs on the pics. they're in early flower rn.
Lime
Well-Known Member
Did you spill nutrients on leaves?
Try washing off with just water. See if it comes back or stays gone?
Then you'll know.
Try washing off with just water. See if it comes back or stays gone?
Then you'll know.
Make sure there’s no leaves laying on top of each other.
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i cut all the leafs off the other night with it. so i guess thats my answer.
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Killian
Well-Known Member
Yes. They don't look like trichomes so I don't understand the early flower. It's hard to tell in the photo but it looks suspect and worth taking a look at.
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there no like widespread shit either. its only dots here and there on some leafs. i trimmed probably 100 leafs the other night between all the plants. all just had like a dot or 2 of that shit. there like no real patch of it besides that 1 pic i got in the post. so im like really lost.
Killian
Well-Known Member
What I'm talking about would have nothing to do with the powdery mildew if that's what it is. But it does look like you could have some mites on your leaves. Do you have loupe you could examine them with. Could be nothing my eyes are old and tired. Lol
I cant see the pics well but what i see does not look like mildew. Edges much too sharp
And a peroxide mixture is one to five. Not one to nine
And a peroxide mixture is one to five. Not one to nine
