Slight problems showing up have pics help appreciated

[40AmpstoFreedom]

I could've swore I saw this pic in Jorge's book that I burnt =( heh Yellowing started from the bottom up and then the blotches started appearing on the larger fan leaves and smaller ones.






SOIL:

How long has this problem been going on? 8~days
What STRAIN are you growing? Schnazzleberry #2 and Swiss Bliss
What was the establishing technique? Seed
What is the age of your plants? day 32 flowering
How long have they been in the soil mixture they are in now? 32 days
How Tall are the plants? 30-40 inches
What Technique are you using? SOG
What size pots are you using? 3 gallon 1 plant per pot
What substrate/medium are you using? What brand of soil mixture are you using?

1 cu. ft Pro-Mix BX
1 cu. ft Pro-Mix HP (this kind just has more perlite basically)
2 cu. ft MiracleGrow Organic Choice for the garden
1 cup Bonemeal
1 cup Bloodmeal
1/2 cup Dolomite Lime
10-20% perlite

It's blazeoneup's, "just add water" soil recipe except he uses Pro-Mix for containers potting soil which just has some water retention crystals in it nothing else different and Kelp Meal. In place of the Kelp Meal use Alg-A-Mic by Biobizz which is a concentrated kelp extract basically...2 ml per liter


What Nutrient's are you using? Used Big Bloom 1 tbl gallon twice spread out, mollasses every other watering, and Alg-A-Mic 2 ml per liter every 4-5 days since flowering
What is the pH of the "RUN-OFF"? 6.7
What method of pH test was administered? pH pen
How often are you watering? once every sometimes every other day dependinng on dampness
What size bulb are you using? 1k watt
What is the distance to the canopy? 25 inches~
What is your RH Factor? (Relative Humidity) 50%
What is the canopy temperature? 80
What is the Day/Night Temp? minimal fluctuation
What is the current Air Flow? 265 cfm in vortex 4 inch outtake hooked up to a scrubber
Tell us about your ventilation, intake exhaust and when its running and not running ? Always running
What water are you using? Well water

 

[Weedninja]

That's a classic N deficiency. Whether or not you should correct it 32 days into flower is debatable.

 

[40AmpstoFreedom]

That's a classic N deficiency. Whether or not you should correct it 32 days into flower is debatable.

Ok, thats what everyone was saying in my thread too. I think I may have mixed the soil wrong for that tent as this problem isn't occurrinig in the other tent.

Thanks a lot weedninja your always around to help people and I've gleaned a lot of good information from you really appreciate the help you give here.

 

[Weedhound]

I think WN pinned it perfectly.

 

[Weedninja]

Thanks a lot weedninja your always around to help people and I've gleaned a lot of good information from you really appreciate the help you give here.

Thank you sir.
I appreciate that you appreciate it.

 

[40AmpstoFreedom]

It's getting worst I gave them one dose of grow big at 1/4 tsp per gallon and it jsut seems to be spreading what should I do now? I was thinking maybe flush them and cut the bottom of the pot off and add more of the organic soil and just not put anything in else in it this time?

There are probably 6 of 10 in this tent like this and I don;t think they will go the whole 70 days at this rate:

 

[Weedninja]

N usually takes about a week to be absorbed by the plants' root system. You should be coming out of stretch very soon and the amount of N needed by the plant will drop way off.

IMO, you made a good call about feeding. I didn't realize that the yellowing was that widespread when you first posted. Believe or not, it's not as bad as it looks. Most of those leaves can still photosynthesize and even the ones that can't will serve as food for the others.

 

[40AmpstoFreedom]

And that is the same plant as before it just got a lot worst. Thanks for putting me at ease. Wasn't worrying before definitely was now lol....Really got yellow fast I just hope it isn't a lockout instead of a deficiency! Hopefully they can make it the whole way 32 days left.

 

[Weedninja]

If you ever have a problem explode like that, a foliar feeding is the quickest way to get nutes to your plant. Just mix your nutes to 1/10th of their normal strength(it's easier to convert if you use metric) and spray the leaves just before light out.

 

[40AmpstoFreedom]

Ok will definitely lodge that one in my head for the future thanks.

 

[moonymonkey]

yes i was thinkin lock out..imo

 

[grapepunched]

when's the last time they were transplanted?
i always rough up the roots with my hand if they
have grown all the way to the bottom of the bag...
let us know how it goes and good luck

-gp

 

[HeadyPete]

Increase your bloom ferts and your molasses about 10-15% as well. They could use the extra P and mag for sure, now that they are entering more aggressive flower phase. Also, that 1K will make them eat more.

Like Ninja said, it takes about 7 days for organic food to be broken down by the microbes in the media so the plant can absorb.

Last thing, bonemeal is a slow acting fert so it may not even be fully contributing to your soil yet. How long was the soil mixed and rested before using? You should premix soil at least a month in advance.

 

[40AmpstoFreedom]

Thanks for the input guys and the soil was mixed only about a week before hand or so not much time at all...But I don't ever remember blazeoneup saying it needed to be mixed early. Its his soil recipe only thing different is the Alg-A-Mic I am using instead of his kelp meal because I could only find it on the internet and it was too late to order.

I find it wierd only one tent is doing this but it would make sense as this tents mix was done right before transplant so 0 sitting time for the soil.

GP as far transplant goes they are definitely not rootbount I transplanted right before flower into 3 gallons and the mix lasts blaze the entire grow the entire time...

I've done something small and stupid I'd just like to pin it down.

 

[libby]

notlced you mentloned tents,what tents are they,gasslng off? or am l jumplng the gun?

 

[40AmpstoFreedom]

no no offgassing for sure its DR150 and the sunhut new version only sunhut is doing it really bad the DR is just now starting.

UPDATE:

I think I know what the problem is. Fungus Gnat infestation....I was down on my hands and knees inspecting the plants and noticed after I knocked one of the containers quite a few fungus gnats flew out...

My eyes have been going down hill for the past 4 years and I guess I need to get some glasses because surely I should've seen these things heh...I had seen a couple flying around in the start of flower and used Don't Bug me Bug spray and I thought they disappeared. After knocking the pot it seems they grew in numbers exponentially....

I read that they eat the organic stuff in the soil and root hairs...Can they be fatal?

I read on here awhile ago that sand was great for killing them. So, I went and bought some playground sand and put it on top of the soil to interupt their birth cycle and also put some cups of sprite in the corners of the tent which is the method I used for my first grow to kill them all as they love sugary stuff so they dive in and drown.

Now that I think the problem is figured out since they have been eating up my which would explain my nutrient deficiencies nutrients I guess I should give them a 1/4 strength of tiger bloom and tbl spoon per gallon of big bloom? and then feed as needed until harvest?

 

[TryComb]

I have two plants like that in flower. (bagseed) I am using fox farm nutes also. I have the same yellowing, but I dont see any bugs. I went down there today and they are looking similar to what you have but only on the bottom leaves. Do you think the bugs are causeing your probs or the N defficency.

TC

 

[40AmpstoFreedom]

At this point I think it was the bugs eating all my organics up causing the N deficiency. Some say you need to let your organic soil sit for 30 days beforehand in order to allow it to make sufficient food source and I did not do that. I think the food that was available was eaten by the bugs.

If I am wrong and I have actually over ferted them I am going to be very angry at my self lol...Thats way too many plants to flush and the 3 that look really yellow probably would end up dieing we'll see in 10 days I suppose.

 

[Chimera]

40,

If your pH runoff is actually 6.7, it's not only N but Magnesium deficiency as well. I would suggest recalibrating your pH meter and measure the water going in and going flowing out of the container. The Mg deficiency is often caused by too low a pH in the medium, which is why I suggest checking to ensure your meter is correctly calibrated to eliminate that possibility.

Remember that Dolomite Lime is essentially powdered rock; it takes time for it break down and release Mg into the soil effectively. ALWAYS use the finest grade dolomite lime available. Dolomite Lime is suitable when mixed into soils as a preventative measure, but it's not suitable to use to fix a low pH problem during the cycle.... use "horticultural lime" in that case.

Add Epsom salts to your water to correct the problem as quickly as possible, but from the looks of it the problem it might be too late to make a major difference for the health of that particular plant.

To get rid of the fungus gnats look for a product at Home Depot (or your grow store) called Aqua-Bac. It contains a bacteria Bacillus Thuringiensis Israelensis (BTi).... this bacteria produces a toxin that will kill fungus gnats- you just sprinkle the granules over the soil, and it becomes active when wet. The fungus gnats will be gone in no time.

This method is organic and works well in eliminating fungus gnats... I sprinkle it on the top of soil plants when transplanted and it keeps gnats at bay quite effectively for the cycle.

Keep in mind the fungus gnats are attracted to the colour yellow, which is why you are seeing so many on that particular plant.

Hope that helps,
-Chimera

 

[HeadyPete]

Like Chimera said...it's a def, fungus gnat larvae did not eat all your ferts. They are a minor pest and can only do damage if left unchecked for awhile.

Use the Bti, drench the soil with dilute pyrethin, increase the bloom and add the epsom salt.