2-3 weeks from harvest and plants keep dying :(

so i have many different strains and i have soil and aeroponics setups. this problem im facing now is only happening to my soils and its happening anywhere from 2-4 weeks away from harvest. i have em in 3gal pots with a layer of hydroton at the bottom of the pot/under the soil separated by weed blocker material. i have fox farm ocean forest, and i am runnin botanicare pro bloom, bloom compost tea, liquid karma, hydroplex, coco cat, and great white. (i have silica blast and raw sweetener but havent used em in a while. i wanted to try and see if less worked better)
so i go in the bloom room the other day and my 4 sfv og females were lookin beautiful and swelling up nicely.....then in a matter of 3 days their health declined rapidly, like a few other before it, then i saw it happening to an afgany bullryder too. the fan leaves first start to shrivel and burn then fall off. they become very brittle to the touch. then the buds pretty much stop growth production or slow dramatically and feel less dense then prior when the plant was healthier. it also feels like when u cut a plant down for harvest and go back and feel the buds the next day, kinda soft, almost like the plants dying.........Plez help. i appreciate and assistance in this matter.

Kind of looks like over fertilizing try flushing and feeding with only water for a few feeding she might bounce back. My first soil grow i didnt know you were supposed to alternate between regular water and nutrient water. A majority of my leaves died off way before it was harvest time.
Hope this helps. Also check ph

ok thanx, so i should alternate with water and then neut water with the soils?? i think maybe the salts built up and caused neut burn. i check ph prior to feeding, should i check the ph of the water run off? thanx again

You need to flush them mate. They look really burned by too much nutes.

Yes you should of alternated watering & feeding! It looks burnt pretty good so its never going to reach it full potential! FFOF is good for burning you stuff!

ya you should check your run off regularly, check for EC + PH, check out this thread very useful - https://www.rollitup.org/marijuana-plant-problems/437657-soil-runoff.html

You got major issues here, could fuck the harvest. I think your PH is out, causing the plant to be K def and disease is setting in which explains the rapid decline in health. When a plant esp at this stage is not taking up K it will be open to disease and quickly die. Your leaves dont display nute burn. Get the ph to 6.5 asap or check that there is k in your nutes. Dont go adding K until you have corrected the PH.

ya man water nutes water nutes i would use fox farm grow big and big bloom. i only use soil in the summer but never any probs with that stuff i ph the water and the nute mix both at 6.5 and no probs ever . i never flush till the last 10 days . then i give them water with 3-5 ml of 35% peroxide per gallon that kills the bacteria and they flush very well .

I have had this same exact problem. I was running a bunch of nutrients and all my plants would start stunting and then quickly dying and there was nothing I could do to save them. I overwatered them (I didnt think I did) and I had severe nute burn. Once, I lost a plant in a matter of 2 days after I changed the nutrients out drunk as a skunk one night and that mf'er had about 4oz on it so I had to do a emergency harvest, I was pissed, my other plants were giving me 8-10oz per... It was nutes the fucking plant was so goddamn yellow I couldnt beleive it.

So now I do light nutes around 500-650 or so in hydro 5 gallon buckets, I was popping 1300-1500ppm in the early flower stage before, and it fried the plant literally, it was so quick!

overwatering- I am using 5 gallon buckets and netpots/hydroton and I used to make it for 3 gallons, sometimes more. I found the nutes were choking the plants inside the root structure and there was so much water. I reduced the water level to 2.25-2.5 gallons now depending on how much root structure exists, in most cases it fills the whole bucket up good the airstones get stuck in the roots all the time I hate that. Well anyways since I reduced the nute levels by not adding so many ml's per gallon as I did before the plants are now making it through further and progressing with no new signs of burning occuring by its a nervous task, I think I am going to go organic because I here its hard to overnute these plants as much as it is with regular.

I overwated a plant that was second week into flower, it was wilted over dead in a matter of a couple hours. wasted 2 months of vegging and the electricity and chemicals etc sob!

j420man said:

ya man water nutes water nutes i would use fox farm grow big and big bloom. i only use soil in the summer but never any probs with that stuff i ph the water and the nute mix both at 6.5 and no probs ever . i never flush till the last 10 days . then i give them water with 3-5 ml of 35% peroxide per gallon that kills the bacteria and they flush very well .

Click to expand...

Bro try to avoid h2o2 in soil, it kills pathogen yes but it kills all beneficial micro org. as well.

thanx everybody, i appreciate the help. i have a sexy raspberry cough coming up and she looks beautiful....................lets hope the shit dont happen to her or any future ones.

Way to much something! dont you cut back on food or stop feeding completely, so you ain't smoking chemicals!!! 2 to 3 weeks isn't that long not going to grow much more anyway.