Week 3 Veg Plant Leaf Problem

[Sunasun]

With your water temperature delta being that high, that could be causing huge pH swings.

 

[stinker]

Try more light.

 

[BeanTownFan420]

Could be Downy Mildew but that is just a guess not sure.

 

[Th3Grow3rNooB]

With your water temperature delta being that high, that could be causing huge pH swings.

So true! I didnt think of this also. Some mornings when i would PH Adust, it would be 15c. I know this is not good so i would leave to sit and warm up to 1 or so before watering which for sure changes the PH ...

 

[AgedMaster]

So true! I didnt think of this also. Some mornings when i would PH Adust, it would be 15c. I know this is not good so i would leave to sit and warm up to 1 or so before watering which for sure changes the PH ...

Your water temps are bad for coco I don't no what container u use to water but I put my nutes in my container then my container in my sink fill sink with warm water and leave container with my temp probe in there when it gets to 20c I take my container out then feed here's whats quoted on a website

Cold Water​

Cold water tends to be more of an issue than hot water. This is usually because water is much colder during the winter months, especially for growers that use their own tap water. Anything lower than 15°C will cause your plants’ roots to almost entirely cease growing and can hardly absorb some nutrients such as phosphorus. This element can’t be absorbed at temperatures lower than 10-15°C, causing clear nutrient deficiencies.

The most obvious symptom of cold water is that your plants’ leaves will begin to go a dark color, similar to purple, with clear deterioration in the stem and leaves, which will also become super brittle and break easily, drastically reducing the final yield obtained.

 

[Th3Grow3rNooB]

Your water temps are bad for coco I don't no what container u use to water but I put my nutes in my container then my container in my sink fill sink with warm water and leave container with my temp probe in there when it gets to 20c I take my container out then feed here's whats quoted on a website

Cold Water​

Cold water tends to be more of an issue than hot water. This is usually because water is much colder during the winter months, especially for growers that use their own tap water. Anything lower than 15°C will cause your plants’ roots to almost entirely cease growing and can hardly absorb some nutrients such as phosphorus. This element can’t be absorbed at temperatures lower than 10-15°C, causing clear nutrient deficiencies.

The most obvious symptom of cold water is that your plants’ leaves will begin to go a dark color, similar to purple, with clear deterioration in the stem and leaves, which will also become super brittle and break easily, drastically reducing the final yield obtained.

Yea noted for sure my freind. We are entering Spring here now, so my water will sit bewteen 20 and 25 ish which is a bit warm but there isnt much i can do sadly.

 

[Th3Grow3rNooB]

Could be Downy Mildew but that is just a guess not sure.

So, sadly i am going to have to bump this thread. My problem seems to have gone away and come back after taking all precautions. I have replied to this fellas post, as i am now leaning towards this being the issue. Despite having aadequate circulation / light / ventilation etc.

Here are some pics of leaves i believe to be effected and also the overal plant.

Note what looks to be a powerdy issue perhaps only on the underside of leaves ? The problem does NOT effect upper leaves, it is all at the base of the plant. I understand that branches and leaves at bottom of plant can die off or look necroctic at times. However i have never encountered this.

EDIT: I should point out that i just noticed this issue is near a fan, however i dont think wind burn is the cause here.

 

[Bill284]

So, sadly i am going to have to bump this thread. My problem seems to have gone away and come back after taking all precautions. I have replied to this fellas post, as i am now leaning towards this being the issue. Despite having aadequate circulation / light / ventilation etc.

Here are some pics of leaves i believe to be effected and also the overal plant.

Note what looks to be a powerdy issue perhaps only on the underside of leaves ? The problem does NOT effect upper leaves, it is all at the base of the plant. I understand that branches and leaves at bottom of plant can die off or look necroctic at times. However i have never encountered this.

EDIT: I should point out that i just noticed this issue is near a fan, however i dont think wind burn is the cause here.

Good morning my friend hope your weekend is going well.
Just wanted to point out I have 12 fans running in my greenhouse and currently have the exact same reaction in front of most of them.
The wind burn looks identical to your leaves.
Have you tried moving the fan to see if the damage moves and clears up?
I'm trying to fight rot and PM so wind burn is a trade off.
Rather have wind burn than rot.
Just 2 cents.
BTW your garden is a touch hungry.
Take care.
Oh yeah the @VIVOSUN E6 Swivel Fan will rectify that issue.



#VIVOSUN #Love What You Grow
Bill284

 

[Th3Grow3rNooB]

You always come with news that makes me feel better Bill cheers haha ! im doing good thankyou. I am going to move fan around right now sir ! will get back.

Could you please explain at all how she may be hungry ? I didnt want to touch EC because it is coming out slightly above But youre advice has never let me down before so i am all ears lol !

 

[Bill284]

You always come with news that makes me feel better Bill cheers haha ! im doing good thankyou. I am going to move fan around right now sir ! will get back.

Could you please explain at all how she may be hungry ? I didnt want to touch EC because it is coming out slightly above But youre advice has never let me down before so i am all ears lol !

Glad your doing well Amigo.
I'm judging by the looks of your plants.
A touch hungry IMO.
It could be the light but I'm inclined to think a good feed will improve things.
Not sure on your nutrients or ppm but I'd be at 700 to 800 ppm minimum by now.
But what does the schedule for your nutrients recommend?
Are you following their feed chart?





#VIVOSUN #Love What You Grow
Bill284

 

[Th3Grow3rNooB]

Glad your doing well Amigo.
I'm judging by the looks of your plants.
A touch hungry IMO.
It could be the light but I'm inclined to think a good feed will improve things.
Not sure on your nutrients or ppm but I'd be at 700 to 800 ppm minimum by now.
But what does the schedule for your nutrients recommend?
Are you following their feed chart?





#VIVOSUN #Love What You Grow
Bill284

I have been using this Feed chart for some time and whenever i go all out on it i get burnt tips about to show first white pistils i think since the flip, so i believe you may be right about 1.3 EC being a bit short. i will up her next feed for sure.

I should note that ince i took the advice you gave me about a little drink of Silica here and there, i have noticed results big time ! Its a shame i have been wasting all my Amino Treatment up until now haha!

 

[Bill284]

I have been using this Feed chart for some time and whenever i go all out on it i get burnt tips about to show first white pistils i think since the flip, so i believe you may be right about 1.3 EC being a bit short. i will up her next feed for sure.

I should note that ince i took the advice you gave me about a little drink of Silica here and there, i have noticed results big time ! Its a shame i have been wasting all my Amino Treatment up until now haha!

A couple burnt tips won't hurt, don't worry about that.
Feed them beautiful ladies.
Keep em happy.




#VIVOSUN #Love What You Grow
Bill284

 

[Th3Grow3rNooB]

A couple burnt tips won't hurt, don't worry about that.
Feed them beautiful ladies.
Keep em happy.




#VIVOSUN #Love What You Grow
Bill284

So....
EC In = 1.3 EC
EC Out = 1.5 EC
PH in 5.8 PH
PH Out = 5.9/6.0

Sorry to be asking the tedious questions, but how much can the Runoff EC be above the input EC before it is considered danger zone ? I feed twice a day with 15%/20% run off, I cannot afford any mishaps this run


Not sure if PH Out matters these days or not in coco. I have now inspected the leaves away from fan and they seem fine. Now i know how many fans Bill has... I feel like I have a little wind up my sleeves

 

[Bill284]

So....
EC In = 1.3 EC
EC Out = 1.5 EC
PH in 5.8 PH
PH Out = 5.9/6.0

Sorry to be asking the tedious questions, but how much can the Runoff EC be above the input EC before it is considered danger zone ? I feed twice a day with 15%/20% run off, I cannot afford any mishaps this run


Not sure if PH Out matters these days or not in coco. I have now inspected the leaves away from fan and they seem fine. Now i know how many fans Bill has... I feel like I have a little wind up my sleeves

I don't measure run off.
Coco has sediment that will change the ppm and give you anxiety.
As long as your garden is healthy concentrate on what's going in.
Following the feed chart, does that give you 1.3 EC? That's what 700 ish ppm?
What is the ppm to start? Before you add nutrients?





#VIVOSUN #Love What You Grow
Bill284

 

[Th3Grow3rNooB]

I believe 700PPM is 1.3 EC on that particular scale ? My Tap Water is 0.2 EC. At this stage in growth, my chart woul reccomend 1.6 EC, However, in the past i have run into massive burn and lockout, thought in saying that, my lights were rubbish back then and i am alot more experience now haha. I can see you are thinking 1.5 EC atleast for the size of the plants btw, they are in 28L Pots. in a 5x5

I am in disbelief you dont measure haha ! You are a madman possessed xD I love it!

 

[Bill284]

So . 2 ec is what 100 ppm ish?
Subtract that from your 700 and your at 600.
Low for start of flowering. Imo.
I'd have my lights at max and my girls would eating a big meal right now.
Like I said burning the tips won't hurt.
Just means she is full.
No harm.




#VIVOSUN #Love What You Grow
Bill284

 

[Th3Grow3rNooB]

Yea thats spot on i just checked, 650 PPM would be 1.3 EC, Its havled essentially. Im going for it mate!! gotta make new tea tomorrow, ill up her to 1.5/1.6 ish ? Ill keep you posted Bill, cheers buddy !