White dots on marijuana leaves!


#1

A question from a fellow grower:

I im currently facing a bug or fungie problem and i wish to get an advice of i can do or use. My plants has white dots like if she were infected.


#2

It is very hard to diagnose with the little info you have given us. Here is the ILGM support ticket to get you started.

ILGM Support Tickett

What is the strain?
Indoor or Outdoor?
Size of space?
Soil or Hydro? Medium used?
PH?
Type of nutrients used? PPM levels?
Temperature?
Humidity %?
Light system/watts?
Vegetative Growth season or Bloom/Flower season? Number “weeks/days” from start of veg growth or into flowering?


#3

Still waiting on that ticket, eh?


#4

I have my girl and she’s almost a week old with her first set of leaves looking pretty and second set growing nicely. She’s also taller too from a few days ago. Anyway, I too have tiny yellow spots on the first set of leaves. Not a lot but enough to cause concern. At first I thought it was because the leaf was dirty or something but even after giving them a light mist they are there. I really hope they’re not spider mites. I’ve read about them and how they like to show up in the plants.

I have her in a 10 inch pot, soil nice and aerated with perlite. The nutes in the soil are really low (N is like 0.001% i think) so it can’t be the low dose in N for her. She isn’t dropping or wilting. She looks like she’s “praying” to the light. I don’t know what the dots are. I looked under the leaves and didn’t see anything under them. Any guidance with this if the specks are mites?


#5

Could be mites, but it sounds like you have a seedling in a 10" pot. That is not good gardening technique. Once seedlings are rooted, they should be placed in no larger than 3" pots max. Could be because you misted them early in the light photo period.

You should also fill out the support ticket posted above, in order to receive a more informed answer. Peace


#6

Yeah I’d be guessing it is more likely a deficiency. Probably a potassium deficiency, but manganese and even phosphorous deficiencies can cause spots.