I am currently in week 4 of flower. 4 different strains. Already having a hermie issue, smh. Trying to see if I can push through it. But now all of my plants are starting to get a brown rust on them. It started out on one plants but seems to be spreading now. Running FFOF, BIg bloom, cal mag, bestie bloom and tiger bloom. Am I burning them? Are these from the nutes? Not sure how it's spreading but I can't seem to pinpoint what it is. Seems like lack of cal mag to me. On the verge of starting from scratch with this issue at hand on top of the damn hermie. Talk to me RIU. ( trying to upload pic, but something seems to be up with the site)
Help need quick! What is this?
- Thread starter Dour
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tropicalcannabispatient
Well-Known Member
without pictures hard to tell it will be like guessing, describe the brown spots, is it in the tips, the margines, random spots, necrosis, i have a guess that u actually can have a salt built up for doing to much, keep it simple, can be ph problems, a lock out, even temps mites. give as much info u can without pics, have good air exchange ? What about r/t and r/h. GL
I have great air exchange, a great digital PH reader and it doesn't look like any mites or pest. It could possibly be that I gave them a 1/4 more tiger bloom than I did last run at this stage, but idk. Looks like rusty spots appearing on the arms of the fan leaves, not the tips which would indicate nute burn. Temps are about 74 degrees with an rh of 45-55%. The rusted brown spots seem to be popping up pretty randomly. Maybe I should do a full blown flush on all? My last run had no issues at all. Only difference is the tad bit more of TB.
tropicalcannabispatient
Well-Known Member
then i will say salt build up, sometimes when u over do other nutrients you cause a lock out, u may have calmag in your medium but that doesn'tmean the plant can't uptake it., since when u havent flush?
tropicalcannabispatient
Well-Known Member
maybe ud pen is not calibrated and give u a bad reading., have u checked ur run off?
I plan on doing so next feed. Thinking about only adding blackstrap molasses to distilled water. Would you agree?
Damn....didn't think of that. That's a good thought. No I haven't checked the run off in quite some time. I'm now leading to believe it is salt build up.
tropicalcannabispatient
Well-Known Member
check on that. GL
tropicalcannabispatient
Well-Known Member
not really i will flush with 3 times the gallons in your container., if u have a 5 gallon pot use 15 gallons of reverse osmosis and in the last gallon add 1/4 strength of a full npk nutrients, if u have calmag add the lowest dose recomemded and 1 teaspoon of molasses, u really not running organic so u really don't need that molasses, but it wont hurt., after that let the plant dry, until the time that ur pot is light and resume schedule, i will do 1/4 strength after they dry up from the flush like for 2 weeks then in ma next feed i will go 1/2 strength., buts thats just me., if u want u can wait for other reply's to make a decision GL