HELP! Yellowing & curling leaves due to over- fertilization...?

[Amariah]

Greetings all- Does anyone have any ideas about how to bring my plants back into a healthy & productive mode??? I believe that my plants have gotten too much of a good thing. Even though I am using totally organic fertilizers I did mix several products including Earth Juice Grow, & Earth Juice Catalyst, & Humic acids with a little Dutch Masters Max Vegitative boost and I topped it off with some Superthrive! Now most of my plants are doing great! However a majority of my most prolific plants (Greenhouse seeds- Himalayan Gold) are suddenly showing signs of stunting and severe yellowing with curling leaves and some are even brown and red on the edges. Only one out of 5 white widow plants seems similarly affected but not as severely. Most of the other plants seem fine.
(I did treat around some of the Himalayan Gold plants for termites which were chewing up the stems with Boric Acid... could this have affected the soil PH???

Does anyone know how to correct this problem? Since the are in the very beginning stages of flowering I want to heal them ASAP.
Thanks in advance for your help brothers and sisters!!!

[StonyGeoff]

Can you get some photos up for us?

How strong are you mixing your organic nutes? If you are combining more than 1 then you are going to want to only mix them at 1/4 strength each or even less. When only using 1 plant food it is still better to mix 1/2 strength to reduce the risk of nute burn, which by the sounds of it that's what you've done.

What I suggest you go ahead to do now is flush the medium with plain water for a couple of weeks, then go back to using your bloom nutes, but only at VERY low levels ok :-)

Good luck!

[StonerGrower]

Do a flush, should be fine after that. Give her a day or so after the flush then start the nutes up again. Not so strong though man.

[Medical Marijuana]

Do NOT add ferts after you flush. You seem to have a phosphorous deficiency caused by a nutrient lock-out as a result of over-fertilising. Too much love my friend lol
Do a flush, and let soil dry out, then add a dose of sea tea via foliar and roots, which will help the stress caused by the 'hot' soil. You have to be very careful adding ferts to soil outdoors, as you do not know the existing soil ballast, and can cause a ph and fert imbalance as a result.
The sea tea will be particularly helpful. I would not be adding any extra ferts from here on. Good luck.

[Medical Marijuana]

It is very important you keep an eye on ph as well. What is the ph of your soil?

[StonerGrower]

^I swear if it wasnt for you Ide feel smart some times. Gotta lot of love for ya man lol.

[StonyGeoff]

^
***** knows his shit aye

ps, oh yeh this thread is in the outdoor growing sub-forum whoops, I should really read a bit more before I go ahead and post.

[RooRman]

I think we can all agree that the most important thing to do is that you flush it to rid the plant of excess nutrient build-up in the soil.

[Amariah]

Thanks 4 all of your input!!! I'm going up to visit Friday morning so I plan to test the soil and flush it 4 the 2nd time with plain water- assuming that the soil PH is off does anyone know off the top of your head what one must do to correct the PH. (Keeping in mind that I do need to remain totally organic!)
I'm wondering Smokin ***** what exactly is the "Sea Tea" that you are referring to? I have some brown liquid Kelp which I use primarily as a foliar spray... would that work as a "sea tea"? All I know is that I want to get these plants healthy and vigorous for entering thier blooming cycle- because up until this little incident they were all looking sooooo fine! Another question 4 you *****- some are saying to begin with the flowering nutrients after a couple of weeks... you seem to be saying no more nutes at all??? As a side note every other variety that I have growing has handled the intensive nutients quite well without any adverse affects (with the exception of a single White widow- and she does not nearly as stressed as the Himalayan Golds) Would you advise to stop fertilizing the Golds but go forward with the flowering nutes on all of the other plants or...???

[Medical Marijuana]

You can use brown liquid kelp if you are sure it does not have added N (ie fish). If you are already using it, use a half strength every 3 days for a couple of weeks, then to 5 days after. I would start adding 1/4 strength ferts after about 3 weeks, the soil have the ballast to sustain it after flushing. Try and get your ph at 5.6 to 5.8.

[Umpsy]

Originally Posted by Amariah

...and I topped it off with some Superthrive!

It probably isn't causing your problems, but it can't be helping. Everyone might not agree with me, but every time I have used Superthrive during flowering it has stunted growth and hurt nutrient uptake.

-Umpsy

[RooRman]

Superthrive is not a flowering nutrient, in fact it is not a nutrient at all. Superthrive contains Vitamin B1 and Thamine which are mainly rooting hormones. I use this for plants in veg. and any plants that are showing general signs of stress.

I have never used ST during flowering as that is not it's intended application. If others say that they noticed stunted growth when using ST during flowering I'll have to just take their word for it.

[Amariah]

Thanks for your input Umpsy and Roorman! I am beginning to think that perhaps an overly strong foliar feed was the culprit. And since the plants in question were not yet into their flowering phase I was still trying to pump them up with my vegging nutes. However during this past 10 days or so since this unfortunate event the plants in question are almost all showing signs of beggining to bloom and while they are also showing signs of recovereing some of them look very unhappy and stunted with very yellowing leaves curled up on the edges and many even have brown edges. Having tested the soil today I discovered some odd things- Nitrogen and Phospherous were both very low and Potash was low- and the PH seems to be about 6.5 I did not expect the Nitrogen to be so low in the soil, especially since I have been using high N organic nutes??? Again all of the other plants seem unaffected by this whole "drama". Any suggestions on correcting the PH? Smokin ***** you indicated a PH of 5.6-5.8 how would I go about accomplishing this with a reading of about 6.5
Thanks again!

[GreenLeaf-420]

Wait Slow down 5.8 that is for hydro!!! IMO You are growing in soil you are good @ 6.5 I have a few gardens going now and they are all @ 6.5 - 6.8 w/ no issues as far as the over NUTES just step back drop down to 1/2 or 1/4 strength to the bad ones and the good ones continue on...

What is your feeding schedule 2 days on 1 day off??? I know from my experiences that some strains especially when you are trying a new one it seems to happen but some will eat all th NUTES you throw @ them and others you can not go over 1100 till at least weeks 2-3 IME... I have a few different strains going now and I had to mix a separate batch of NUTES for the church for the first three weeks because they were so temperamental to the NUTES meanwhile their MOM was up to 1600+ in W/F's... What soil are you using it is not FFOF is it because w/ that soil you really need to watch in the early stages...

Well hope all works out it is always easy to add a bit more each day but a lot harder to remove all that excess... We all did it but that is how we all learn... This early on should really not play that big of a role in your yield...

Well Good Luck GL

[Amariah]

Thanks GreenLeaf! I'm thinking that these Himalayan Golds although very robust in their vegging cycle are perhaps more sensitive to all of the nutes. (Though I am confounded as to why the soil tested very low in both N & P? Now that they are starting to go into the flowering phase I will begin some blossom nutes. I watered today and then this afternoon their was over an hour of rain up there so I am thinking that they will be sufficiently flushed by next Tues. For the Golds I will simply give them some very diltued nutes with brown seaweed- for the rest I will give them a regular dose of budding nutes. What is FFOF soil Greenleaf? I mixed a little organic Omni-soil with the existing sandy forest soil and added some kelp meal. I also used the water retaining crystals because it can be very hot and dry in AZ.