Brown spots on leavs


ILGM Support Ticket:

What is the strain and type(unknown bag seed, strain name, regular seeds, feminized seeds, auto-flower, etc)? ILGM gold leaf
Indoor or Outdoor? If outdoor, planted in ground or in a container? indoor

Size of space (max height and area, length/width)? 39 x 39 x 79 grow tent

Soil or Hydro? Type of Medium used? System type? soil roots organic original

pH? Of the soil or medium (root zone/reservoir/run-off) and of the water and/or nutrient mix that is fed to the plant? water ph 6.6 runoff is 6.5

Type and strength of nutrients used? NPK? EC/TDS/PPM levels? Of what you feed it as well as what is in the water by itself and in the soil/medium (run-off), or reservoir. runoff 6.5
roots organics nutrients 2-0.25-2, 2-2-0.5, 0.25-0.1-1, 0.1-0-0.01 I put an eighth of a tsp of each per gallon.

Temperature? Day vs. night temp or highest and lowest temps? Root zone temps? day temps 77-81f
humidity day 48% night 65% root zone 68f
Humidity %? Day vs. night

Light system/watts/lumens/FLUX/PAR? 400w hps

Ventilation system? Size? CFM? CO2? AC, 6 inch
exhaust 4 small fans for circulation humidifier, De-humidifier?na

Number “weeks/days” from into Season, Vegetative Growth or Bloom/flowering? 47 days from seed in veg.
There are brown spots on the leaves can anyone tell me what this is. there is some small spots of rust on my screen. all help is greatly appreciated thank you in advance


there are only a couple of leaves that have this


no one…thoughts ideas cal-mag? :worried:


@Donaldj @Majiktoker @peachfuzz @B345T


Your starting to get manganese or potassium deficient if it is in soil very likely potassium deficient at that stage

Sorry for the delayed reply


Thanks majiktoker


I’m just really happy to have you guys to help me. I want my ladies to be as healthy as possible.thats the only way to win the bud of the month contest lol. they are in soil should I find just a potassium supplement or should I get cal- mag? thank you very much


thank you Nug- bug!


@Majiktoker has this 1 covered :slight_smile:

Looking good otherwise though @eric2


I would start with a potassium silicate or silicon product first like rhino skin or silica blast @eric2


I would also suggest raising feed dose slightly they aren’t little plants anymore 1/8th tsp sounds well under recommended dose possibly too low


thank you all! headed to hydro store



Hey Eric. I was using black gold and had much trouble with that and started using The Roots organic. I also have had those types of problems that you are having and they all pretty much stemmed from pH problems. Roots organic is considered a soilless medium so you have to bring your pH down between 5.8/6. As soon as I did that my troubles went away.

Recently I began having the same troubles again with brown spots and I found that my pH meter was way off and the pH was way too high. So unless @Majiktoker disagrees with this (I would listen to what he has to say) then I would get that pH lowered. But as long as I keep my pH between 5.8 and 6.0 I have had no problems with the Roots organic.


I agree 100% @Bobwags. Potassium silicate will lower it to about 5.5-5.8 right in that area


thank you I’m going to try that. I’m using roots organics original soil. only one plant has this problem. I do not like the Hannah meter that I got. I doublecheck it with the drops and I check the meter with the calibrating solution every time. The water pH was at 6.2 to 6.3 had no problems.I changed to 6.6 for the last two feedings that’s when I started having problems.I have been under feeding a little bit because my first growth of the autos they burned real I’m slowly increasing the nutrients.thank you
I appreciate everyone’s help.:v:


I gave the plants a good soaking of pH 5.9 with a little extra nutes and some silica blast hopefully she will recover I’ll find out in a couple days I have one more question if you don’t mind:grin: they are a little droopy because I just soak them should I prune some of the lower foliage or should I wait till I put them into flower I know this question is split like 50/50 and I agree with both sides but I would like to here some of your thoughts on this picture is below and jus so everyone knows I just figured out how to tag people I have used four emoji’s in my entire life and all four were on this forum lol so if I put the wrong emoji up please don’t take it personal if I shouldn’t be tagging people just let me know thank you all!:v:

@Majiktoker @Donaldj @Nug-bug @BobWags @B345T


Lol I would let them deal with the stress from flush before adding to it any myself and honestly I am mean to my ladies but with root stress and cutting foliage it can be a bad combo


I’m all for keeping the girls neat and tidy, so a quick trim here and there is the norm…
But as @Donaldj quite rightly said i would also wait til she recovered from this first…
And then get the hedge trimmer out :joy:


Agreed let them heal from the stress theyve been going through then once doing better you can,prune out some of the bottom of the plants it would actually probably let more airflow through the plants


thanks for the input I’m definitely going to prune them when they are feeling better pruning is something I have a very good understanding about airflow balance and diverting energy and photosynthesis I have been climbing and pruning trees for over 25 years now and these are mini versions of the large trees it’s time I find a new career maybe in the marijuana business where I can’t get killed have a great day! thanks again @Donaldj @Majiktoker @B345T