leaves has white spots

RockyMtnMan

Well-Known Member
What is PM?
Pm is powdery mildew. Caused by spores like most molds and mildews. Try washing a leaf and see what comes off or doesn't. If it's powdery mildew, that went along time without being noticed.
I would peruse the threads regarding how PM occurs and ways to prevent, eliminate it.
It doesn't hurt to read about plant problems even if you are not experiencing them.
Knowledge is king and I like to be the boss of my castle.
 

RIKNSTEIN

Well-Known Member
That's not PM, the spots would be bigger and they would look milky and blotchy, I'm going with your spray...STOP SPRAYING :wall:
 
I agree with Hexthat. Check for spider mites. I looks allot like spider mite damage. if you've sprayed recently then hopefully you've killed them off. check the underside of your leaves for eggs. it could also be white flies, but I think spider mites are more likely. What are you spraying with to kill the buggers?
 

RockyMtnMan

Well-Known Member
If it was pm wouldn't all of my plants have it?
They would eventually if the environment remains the same. So yes.... that is probably not what you have. Is the affected plant/plants near the back of your grow space or in a corner away from ventilation? Sometimes the spores dont pass quickly to other plants since they are carried in the air or on your fingers when you touch other plants. I have seen it form on some and not others.

You still haven't said if that white stuff appears to be chemical residue or if it just washes off. If you cant spray it with water, just cut off one of the affected leaves and rinse it under the tap.
I use a diluted dish soap solution for aphids on my yard shrubs and it leaves a white residue also.
If you don't at least try it, I got nothing else to offer.
Good luck brother:confused:
 
I checked this morning and i did happen to see some Wen on my plant stems so how do i get rid of the super mites be be cabeuse the spray I'm using doesn't seem to be working
 

luckybleu

Well-Known Member
So i should stop spraying the plants with that spray?
your spraying your plants that r flowering with poison and then your going to smoke that shit ,what do you think you should do? Check the undersides of leaves with a 30x loupe if its spider mites youll see the little bastards move ,to me that dosent look like spider mites ,the flying shits you saw are probably fungus knats and can be contoled without insecticides.
 

1itsme

Well-Known Member
thats definately not powdery mildew. and fungus gnats don't feed on the leaves. that looks like spider mite dmg. i got thrips one time and it looked like that as well, but you can see thrips flying around, and their feeding marks are smaller so if you look from a couple feet away it just looks silver. mighty wash works pretty good, alot of people here have had realy good results with it. evergreen or other pyrethrin concentrate works realy well for me. neem is great to prevent infestations in the first place (it's a repelant), but at this point it would be a waste of time. pyrethrin bombs are another common way to deal with them. personaly i like the concentrate, i use a $20 harbor freight paint sprayer to apply it works much better than spray bottles. hth
 

1itsme

Well-Known Member
oh, you could ask your local hydro stores if they have any pyrethrin concentrate samples. i would ask in person, as re-bottling is illeagal in many areas. still alot of hydro shops will do it since concentrates like that are kinda geared towards commercial growers in quantity and cost.
 
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