Hi guys …5 th week in autoflower lemon haze…have this issue since last 2-3 days… not sure if it’s a deficiency or a light burn …kindly help thanks
It’s there on all 4 of my plants !! I’m so tensed
I’m not 100% but I do see a lot of moisture on some leaves on one of the pictures and where the damage is looks like it’s curling up which lead me to believe to much moisture on your leafs while your light are on is causing the burns…
Can you fill out a support ticket it always helps narrow things down!
- What strain, Seed bank, or bag seed
- Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
- Vessels: Pots, Grow beds, Buckets, Troths
- PH of Water, Solution, runoff (if Applicable)
- PPM/TDS or EC of nutrient solution if applicable
- Indoor or Outdoor
- Light system
- Temps; Day, Night
- Humidity; Day, Night
- Ventilation system; Yes, No, Size
- AC, Humidifier, De-humidifier,
- Co2; Yes, No
For sure thanks …yeah could be but not sure y though…I’m giving water only to soil no folliage spray
Lemon haze ( greenhouse seeds)
Temp -25 celcius
Fox farm nutrient trio
Have ac which is on … dehumidifier off as of now
Ph of water 6.5 …not measured run-off
CO2 - no
Generally light burn is gonna effect upper most leafs that’s why it’s odd and point me to think water on leaves, which can also be there if your plants are transpiring abit more and not enough air flow causes the transpiration to stay on the leaves longer and in turn amplifies light and burns. definitely looks like slight light burn to my eyes what’s the height of your light and what is the true wattage of the fixture? If that’s all in check I’m leaning towards you may need another fan to help the moisture that the plant is releasing get off of the leafs
It’s a Phlizon …600 w …it was full power on mode …have switched off the cobbs now…
Any reason for plants transpiring more? Its for sure a light burn haan? Or could it be something else too …haven’t checked the runoff ph …will do that when I water next
Instead of turning lights off you can raise them up a few inches not sure what the specs are for that light I run QB’s and stay about 20 inches off my plants but with that light I can’t see it really burning the plants on there own unless they are within 15 inches maybe I’m no lighting expert… they would transpire more if they are drinking a lot of water it’s a good thing if that’s the case and that moisture does stay in the leafs I would think you just need more wind would solve the issue do you have fans moving the air around? And yes it’s always good to see what your run off is if it’s way off then you could be having the start of a lockout, but typically with a PH issue you will see the leafs kinda folding downward instead yours are folding up where the burns are and so I’m pretty sure it’s more of a moisture+ light issue and if it is it’s an easier fix than needing a soil reset… doesn’t look too serious yet definitely check your run off if it’s way off from input then you will need a soil reset and that was the issue and if it’s in range and you have a proper PH pen I hope then I’d would def think you just need a bit more wind
Thanks a ton…cheers
It would be beneficial to get a PPM/TDS pen to measure what is in your soil. You measured pH of water going in. What is the runoff?
You want to prevent as much stress in the veg stage so that you get max production during flowering.
Get the readings and you can begin to eliminate suspects.
As @Teffygreenthumb suggested, read the light parameters for height. However, light burn usually impacts top-most growth.
I see the nutes your giving, but how often and how much? Are you following the FF growing schedule?
The more info the better the support.
Yes man will post the runoff ph in a day or 2 …have ordered a new meter
Stupid question…How does the ppm meter work in soil? Do I just insert it in soil and take a reading?
The nutes I’m using at half strength of th FF schedule
You would just stick the electrode into the water you are testing. That is, the run-off.
Oh yeah ok…so does the ppm thing work the same way as in hydroponics? I should compare the ppm of water going in and the runoff? Doesn’t the soil spoil the readings? Or do we only check the runoff to see if it’s in an acceptable range …
Yes, you want to know how much is being used by your plant. You could do a soil slurry test to get your TDS in the soil. Then you measure amount going in with what came out. If pH is good, your readings will tell you the amount being consumed and this in turn let’s you know you’re dialed in with your numbers!
Hope you don’t mind the tag. Thanks for the support. Still lots to learn!
Usually you’ll always have some reading. But it does help to check what was going in and compare what’s coming out.
Checking your PPM runoff will let you know how much nutes are available in the soil for the plant to uptake. You will know when to feed. A lot of the Cannabis family organic soil will carry you several weeks before you need to feed anyting.
Yes thats true to an extent, it will tell you the amount of salts in the soil or electrically conductive material, but it wont tell you what they are or in what ratio. Thats the only real downside to that test. But yes, it will let the person know if there is excessive salt buildup or not enough. However, if you get it just right, the plant will use most of what you feed it
Got it …have just ordered a tds meter…thanks a lot guys