Split from : The Complete guide to Sick Plants,pH, and Pest troubles!

[MynameStitch]

Major, are you talking about the one that looks like someone took a bite out of it?

One love, np glad it could help!
The book is much much different, has some of the same pictures, but there is over 100+ pictures and has 173 pages of sick plant info ranging from what you see now to about 10x the amount of information.

What country do you live in where they do not carry it there?

 

[Maj.Cottonmouth]

Major, are you talking about the one that looks like someone took a bite out of it?

One love, np glad it could help!
The book is much much different, has some of the same pictures, but there is over 100+ pictures and has 173 pages of sick plant info ranging from what you see now to about 10x the amount of information.

What country do you live in where they do not carry it there?

I think it was just a weird camera angle causing what you are talking about. I have uploaded a video and some pics below to better show what is going on.

What is the name of your book? Is it on Amazon?

Thanks for your help Stitch

http://www.youtube.com/watch?v=eZgAU0HFCEg

and one to show the light height

 

[MynameStitch]

Hm, how long has these plants been under this light? Is this affecting all of it or has this spread?

Is this on the top part of the plant?

Your not misting your plants are ya?

This is very odd problem, because it looks like there was either left over issue you had last time or looks like your leaves got sporadically cooked lol

The coloration and texture makes it look like part of the leaf died from being too dry..... when you touch that part does it crumble or feel dry? in the first picture of your previous post the leaf in the middle is the one in question I am talking about.

Ya, you are right the light angle was making it look like it was bleached.

 

[Maj.Cottonmouth]

Hm, how long has these plants been under this light? Is this affecting all of it or has this spread?

I switched from a T5 bank to 1 400w CMH 5 weeks ago and then I added a second 400w CMH 3 weeks ago. It seems to be spreading

Is this on the top part of the plant?

Yes, the lower leaves do not have this issue

Your not misting your plants are ya?

No misting

This is very odd problem, because it looks like there was either left over issue you had last time or looks like your leaves got sporadically cooked lol

The coloration and texture makes it look like part of the leaf died from being too dry..... when you touch that part does it crumble or feel dry? in the first picture of your previous post the leaf in the middle is the one in question I am talking about.

It is very dry and yes it crumbles at a touch

Ya, you are right the light angle was making it look like it was bleached.

Thanks Stitch

 

[fishwater]

Help... Stitch, or anyone... I am screwing up...

Help... Stitch, or anyone... I am screwing up...









I have some problems I dont know how to solve... Last week these plants were all doing good. I had finally gotten a ph meter, and found I was watering with a 9 ph well water. The water also smells of sulphur.. I started adding 6cc of distilled vinegar per gallon, bringing ph down to 6.7 or so. Then I got the bright idea they needed some food, so I dosed them with full strength earth juice grow AND bloom.... Stupid.....very stupid... I didnt check the ph of the nuted water untill it was too late... 4.8ph
Next morning the bottom fanleaves on most were turning yellow.. ph locked and nute burn at the same time????? they had the spots of ph lock on them ... so I flushed everyone after waiting two days... stupid again.... and to top it all off, I had just topped all the plants right before I pulled this all off... needless to say, growth has been going nowhere this past week, and I am getting nervous on some of them... They need transplanting, only three of them have any preflowers that I can tell are female.. some have none.. a few are prob males to get rid of once I go to 12 and 12....
Some leaves on a few plants are turning purple around the edges...
Lots of fan leaves still turning yellow... even after flushing...
I havent been removing them except on one male experimental plant and every time I take the yellow leaves off it, the next node starts yellowing
I am not sure if I am still getting nute burn, ph lockout, or starving them
havent gave them anything but ph'd water....


The soil is organic miracle grow... the plants are now 6 weeks old.. under 600w sunpulse mh... watering as needed by weight of pot...
How long has this problem been going on? a few days
What STRAIN are you growing? White Peak.. seeds are about 6 years old
What was the establishing technique? (seed or clone?) Seed
What is the age of your plants? 41 days
How long have they been in the soil mixture they are in now? 41 days
How Tall are the plants? 12 to 16 inches
What PHASE (seedling, vegetative or flower) are the plants in?vegetative
What Technique are you using? (SOG, SCROG etc)none
What size pots are you using? (Include how many subjects to pot)1 gallon... will transplant to 3 gal
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Miracle Grow Organic, 20% vermiculite, 20% perlite
What Nutrient's are you using? see above
How much of each nutrient are you using with how much water?
How often are you feeding? as needed... some plants none, some once a week
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? I didn't check, i haven't got the right tools
What is the pH of the "RUN-OFF"? 6.7
What method of pH test was administered? Using Strips? pH pen? Hanna How often are you watering? when pot gets light
When was your last feeding and how often are you feeding? 5 days What size bulb are you using? 600w sunpulse MH
What is the distance to the canopy? About one foot air cooled reflector
What is your RH Factor? (Relative Humidity) Goes from 39 to 55,
What is the canopy temperature? 75 to 80 F
What is the Day/Night Temp? (Include fluctuation range) 24/7 light
What is the current Air Flow? (cfm etc.)door open ...
Tell us about your ventilation, intake exhaust and when its running and not running ? oscillating fan brushing plants.. on 15 minutes off 15 minutes
Is the fan blowing directly at plants? brushing tops
Is the grow substrate constantly wet or moist? I'd say moist
Is your water HARD or SOFT? I don't know
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Tap water from well... smells of sulphur, but let it sit a day before using
Are you using water from a water softener? No
Has plant been recently pruned, cloned or pinched? Yes
Have any pest chemicals been used? If so what and when? No
Are plant's infected with pest's? fungus gnats... have mosquito dunks in

 

[barletta]

Yo fish

Try giving them bottled water. I dunno for sure, but if you have well water that smells like sulphur, most likely the septic field is leaching into the well. In that case, your water will be all fukked up. Try a few waters with 'spring water' (really just tap water from a decent source) and 1/2 strength nutes.

Prolly sucks to hear, but you are going to prolly have to get some sort of filter/alternative water source to feed your plants. Also, try letting the pots run on the dry side until you get the gnats under control.

 

[fishwater]

Hey barletta..
naw, the septic isnt into the well.. there is a lot of sulphur naturally in the ground around here.. I let it set a few hours and the sulphur airs out.. I drink the water.. a few little coal beds ... and even without the coal.. I know, I used to drill waterwells close to here. But, I have been thinking new water too... I have a river in the back yard, I might try that...
What do you think about the vinegar in the water to ph it? shouldnt hurt, should it? I think I am going to flush them one more time, then immediately transplant into 3 gal pots...

and those damndable gnats.. they are getting scarcer since the dunks.. and I have been letting them dry out real good before watering...

Thanks for the input....

 

[MynameStitch]

Thanks Stitch

Crispy spots the pictures are showing few things cause this is dry heat, leaf got close to the light and nute burn, pH that kind of stuff, not saying any of these are your problem..

Other than that I don't know..... you mist your plants with anything?
Oh forgot too... hot spots can cause random leaf spotting and make it crispy in the middle of the leaves too....

 

[MynameStitch]

Fish, your issue is a nitrogen deficiency, the lower leaves yellowing your plants need food. You do not have a pH issue the plants are too healthy looking.

The one plant in the bottom middle looks slightly over watered if you did not just water the plant recently after you took the pic.

The purple is due to temps getting too cold for the strain,If not then your strain is a color changer without environmental factors to play a role when it changes colors; purple is phosphorus , cannabis has a hard time absorbing P with the soil is cold Nitrogen can also have absorption issues when temps are cooler and if the soil stays wet too long.

Other than that your plants look really good

What temps is your plants going through day and night?

Vinegar should only be used as a temp pH adjuster; it does not last long for one and too it can build up if you use too much too quickly depending on how acidic you want to get your medium.

imo your plants are not showing pH problems......

Your plants chances are they are hungry, normally you are supposed to feed your plants after they have been in there mixture for around 28 to 35 days.... I would start feeding them a balanced nutrient weekly, and depending on what you use do not listen to the directions, always start with half the dosage of what the nutes recommendations are.

 

[fishwater]

Thanks Stitch..
Plants are still in 24 hour lite, so temp never gets below 75 degrees... I did transplant most of them yesterday, trimmed all the dried leaves off...and fed them 1/2 strength grow.
The yellowing all started the day after I fed them full strength grow and bloom nutes without checking ph.. dumb mistake...I am sure that it was way too acidic but I must have flushed it all out and they started starving... this all happened a little over a week ago now. Any way they are looking somewhat better. They were pretty much rootbound in 1 gal pots, with some roots that were sort of tannish colored, and some nice and white, so that may be an issue too...
I watered everything at transplant, but only remembered to put hydrogen peroxide in the last 4, so I guess we will see if that helps at all.
Would lemon juice be a better than vineagar for ph down? My well water is running 8.8-9ph... and no access to hydro-shops here... in a northern midwest state.
The purple around the edges of leaves still concerns me, cant believe it would be a temp issue, and I dont remember that purple from growing these before.. been a while, but I think I would remember that. Any way, I think they are going to live, just a couple weeks behind schedule now...
Only 4 of them had preflowers that I could identify... and most of the others have shown nothing yet.. probably cause I freaked them out so much.... I wanted to get them healthier before switching to 12/12.
I will switch to 12's tomorrow morning and see what I end up with....

Thanks again everyone for your help...
And as always, any opinion or idea is quite welcome... My memory is slowly getting jogged back, it has been a while since I had the chance to do this....

 

[Maj.Cottonmouth]

Crispy spots the pictures are showing few things cause this is dry heat, leaf got close to the light and nute burn, pH that kind of stuff, not saying any of these are your problem..

Other than that I don't know..... you mist your plants with anything?
Oh forgot too... hot spots can cause random leaf spotting and make it crispy in the middle of the leaves too....

I am not misting with anything and have not since I started flowering.

I am not stressing about it, it does not seem to be spreading much.

As long as I can keep them alive for another 5 weeks all will be ok

 

[MynameStitch]

Hoped it worked out for ya fish, come back later and let us know

Hey major,

That is weird, do you think something like water or something else dropped in droplets on a few of the leaves? That does not look like a problem was caused by the plant itself..... well at least it's not spreading thats good, that also tells the story that possibly was caused by something in it's enviroment.

 

[Maj.Cottonmouth]

1d10t error

1d10t error

I have been hesitant to post because frankly it will just make me look stupid.
So somehow I got it in my head that the feeding chart for my nutes was per QUART but it is not it is per GALLON. So even with feeding them 1/3 strength I have been overfeeding still. Yes I can be very stupid but at least there are people here like Stitch who are smart enough to balance me out, thank you so very much Stitch.

Some initial harvest pics here

 

[Weedlife]

Hi all, hi stitch. I think i'm having some problems with this new plant hope you guys can help me figure out.

I think this plant is too small! And the yellowing of the new leaves, how can it be a defincency? That soil should be full of food, shouldn't it? And my water ph is 6.5. Anyway i have completed this:

How long has this problem been going on? idk
What STRAIN are you growing? High Level Eva Seeds
What was the establishing technique? (seed or clone?) Seed
What is the age of your plants? 12 days
How long have they been in the soil mixture they are in now? 6 days
How Tall are the plants? 5-6 cm
What PHASE (seedling, vegetative or flower) are the plants in?vegetative
What Technique are you using? (SOG, SCROG etc)none
What size pots are you using? (Include how many subjects to pot)half litre pot
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Biobizz all mix 30% perlite
What Nutrient's are you using? none
How much of each nutrient are you using with how much water?
How often are you feeding?
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? idk
What is the pH of the "RUN-OFF"? haven't tested
What method of pH test was administered? Using Strips? pH pen? strips
How often are you watering? when pot gets light
When was your last feeding and how often are you feeding? no feeding, only water
What size bulb are you using? 125w envirolite
What is the distance to the canopy? about 7cm
What is your RH Factor? (Relative Humidity) Goes from 42 to 60,
What is the canopy temperature? average of 24°C
What is the Day/Night Temp? (Include fluctuation range) 15-25 °C
What is the current Air Flow? (cfm etc) enough
Tell us about your ventilation, intake exhaust and when its running and not running ? extractor always on
Is the fan blowing directly at plants? no
Is the grow substrate constantly wet or moist? moist
Is your water HARD or SOFT? I don't know
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Tap water and let it sit a day before using
Are you using water from a water softener? No
Has plant been recently pruned, cloned or pinched? No
Have any pest chemicals been used? If so what and when? No
Are plant's infected with pest's? No

 

[LiL2L]

Hey guys, I'm a new member in need of a diagnosis. I have been through about 40 of these pages but still am not sure where my problem is lying.

About 5 days ago I noticed some of the leaves were getting light green streaks through-out them and then some brown marks formed around the edges and tips. Soon after they began turning a golden yellow/brown and turning in to crispys. It's mainly on the sun leaves from mid plant down and about a 1/4 of them have already fallen off.

These plants have grown out of little half gram buds that I trimmed off their mother about 2 weeks before she was harvested. They are now about 7 weeks old and 10 inches tall growing in Miracle-gro potting mix with a little extra perlite. They have been in these red party cups for about 2 weeks and the roots are just reaching the bottom holes so once better they will go into 1 gallon pots.

I have been feeding them 1/4 strength Miracle-gro Tomato 18-18-21 and Superthrive every other watering, watered every 3 days for the past 3-4 weeks. Water is 1/2 bottled 1/2 Hard tap well water. Last watering was without food and it was 2 days ago. The PH of the soil is 6.4, PH of the water with food is 6.4, and PH of water without food is 7.2.

They are growing under a 4ft 2bulb t8 grow fluro with 2 single bulb grow fluro's along the bottom. Lights are on 24/7 and temp stays a constant 80 degrees. Humidity I'm not sure of but it's probably less humid then the bedroom.

Airflow is good but the ventilation I need to find a way to improve. This is a discrete closet grow so I have built a 4.5ft high x 4.5ft long x 3ft wide "tent" out of 2x4's and bed sheets to help conceal the smell and block out the light. During the night there is no ventilation besides what air can pass through the sheets but the fan inside is on 24/7 and I try to open up the front "sheet/wall" of the room for at least 2 hours a day.

They don't get misted no chemicals and no pests.

 

[MynameStitch]

Hello Lil, welcome to ICMAG!

I used MG tomato food and it's very strong stuff, You are only supposed to use super thrive very minimal, alot of the amino acids and vitamins are not used alot in cannabis and build up very quickly. It's used for stress and to help root growth in transplanting and root stress.

1 drop per gallon of water is all you need, but should not be feed weekly, once every 2 weeks is when you should use it, only on plants that are a little bigger than they ones you got though.



You can still use the MG tomato food 1/4 the dosage, but use it every 7 days and ONLY use this for now,....... What does your bottle water have in it? Is it store brand? What soil mixture is your plants in?

Also depending on what mixture you have them in and how long they have been in there if the soil mixture is good normally you don't need to feed them for the first 3 weeks.

In order to fix this you must flush your plants very good, Flush them use around little over 1/2 gallon of water on each plant.

After they recovered remove them from there cups and place them into proper pot size as they are going to be rootbound if not already, roots that are being burned by high nutrient content will be undergrowth for there size.

You don't want to put them into new soil and flush them, because you will waste, so get a lot of water, you can use tap, do not use good bottled water...... if your tap is contaminated or what not then you should use other water......

Let the water sit out for one night before using it.

 

[LiL2L]

Thanks for the warm welcome Stitch! Very happy you stopped by. I and I'm sure many others here and there and there and there are very greatful we can follow your teachings.

With this info a build up of Superthrive is likely a large part of the cause because they have beein seeing about 1/5-1/4 teaspoon per gallon added in with the Tomato food every 6 days for the past 4 weeks.

I'm using Kmart brand Purified spring water. I believe it is non-additive filtered through RO and Ozonation. I'm using this because my tap water is very hard (over 300ppm) with a very high total alkalinity (over 300ppm) and a ph over 8.4 so the mix of spring water brings the ph to 6.8-7.2 hardness down to 25ppm and total alkalinity down to 100ppm. All these numbers are with plain water no food.

The soil is also Miracle-gro enriched potting mix.
Ingrediants: 55-65% Canadian sphagnum peat moss, composted softwood bark, perlite, a wetting agent and miracle-gro fertilizer.
Guaranteed Analysis: Total Nitrogen - 0.21%(0.12% ammoniacal nitrogen & 0.09% nitrate nitrogen) Available Phosphate - 0.07% Soluable Potash - 0.14%.

They will have a good flush tonight and I'll try to pick up a better fertilizer for them by their next feed. Once recovered and transplanted I'll throw in another post here with some new and healthier pictures.

Thanks for lending your thumb Stitch!

Happy Green Holidays everyone!

 

[bengie187]

LiL2L- im not a specialist by anymeans at diagnosing problems but i have read a fair amount of people not liking or recommending miracle-gro potting mix.....but im high right now and could be remembering wrongly

Stich- Btw I harvested my plant im thinking it was about a week early but pretty good smoke turned out like this.


and now for the reason im stoppping by....umm do plants in veg regularly thier bigger fan leaves??....

 

[fishwater]

Help stitch... or anyone

Help stitch... or anyone







First grow in a lot of years, and not happy with mg organic soil mix.. blended perlite and vermiculite with it, but it has no consistancy. A few plants went strong, nice and green, and most have been yellow and sickly all the way...

Anyway, I left for 8 days, plants are white peak, some old seeds I found, and I watered them and fed them 1/2 earthjuice bloom before I left... three weeks into flower.. in 3 gal pots... but when I come back, most are yellowing, I fed them 1/3 earthjuice grow with 1/3 earthjuice bloom last night ... they dont seem any worse..
600w hps\
transplanted 3 weeks ago

plants were a little dry when I came home, but only 2 had wilted at all... not bad... why is everyone so yellow????????

mixing lemon juice to bring water down to 6.4 ph
nutes alone bring water down to 6.2 when I use them, not very often...

could the miracle grow soil be out of nutes all ready?????

 

[LiL2L]

Thanks Bengie. I have also heard miraclegro soils arn't the best to use though out of them the Moisture Control is most recommended and the one I have comes in second. For the fan leaves regularly dying while plant is in veg, you may sometimes lose a few but if it is often or many it's probably a light or nute problem.

fishfish the organic mix is said to be the absolute worst soil they make. I'm sure Stitch will tell you for certain but chances are they are hungry.


Stitch- It's been 2 days sence the flush and they are already showing great improvement. The problem has stopped spreading and the recently affected leaves are begining to look healthy again. If I could hand you a joint for this I would!

Happy Holidays.