Older fan leaves have brown spots!

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Newbie27

Newbie27

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I noticed early on that my bigger fan leaves started growing brown spots on them
I remove them and now about a week later they are back on my older fan leaves what am i doing wrong?
 
Older fan leaves have brown spots
Dr.B

Dr.B

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It looks like a calcium deficiency. Don't take that to mean that you need to add anything before finding the cause of the problem.

Without details. Temps, humidities, growing medium, pot size, plant age, lighting, lighting schedule, air movement, watering, frequency-style-nutrient content-pH in and out etc. It's nearly impossible to nail down a cause.

To start. Stop removing leaves and address the cause. Those leaves are both providing for your plants and indicating to you that the plant they are attached to has issues. The leaves are not the cause of the problem. Removing them in this case only depletes stored nutrients and reduces potential for photosynthesis and transpiration. Making it harder for your plant to recover.
 
Last edited:
Newbie27

Newbie27

272
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Dr.B said:
It looks like a calcium deficiency. Don't take that to mean that you need to add anything before finding the cause of the problem.

Without details. Temps, humidities, growing medium, pot size, plant age, lighting, lighting schedule, air movement watering, frequency-style-nutrient content-pH in and out etc. It's nearly impossible to nail down a cause
Click to expand...
So in other words im Screwed ?
Should i cut them ?
I feed them botanicare
Im giving them 10 ml karma
And 15ml base
Ph the water to 6.4
 
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16111649755716760711813196079658
16111650382715764639158051790401
tobh

tobh

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pH is too low for soil. Still need more details about what you're using. So I don't have to retype all the questions, see the first post in this thread, copy the template of questions, paste it here and answer all of them.
 
Newbie27

Newbie27

272
43
Dr.B said:
It looks like a calcium deficiency. Don't take that to mean that you need to add anything before finding the cause of the problem.

Without details. Temps, humidities, growing medium, pot size, plant age, lighting, lighting schedule, air movement, watering, frequency-style-nutrient content-pH in and out etc. It's nearly impossible to nail down a cause.

To start. Stop removing leaves and address the cause. Those leaves are both providing for your plants and indicating to you that the plant they are attached to has issues. The leaves are not the cause of the problem. Removing them in this case only depletes stored nutrients and reduces potential for photosynthesis and transpiration. Making it harder for your plant to recover.
Click to expand...
Flush? Or should i add cal-mag?
 
Dr.B

Dr.B

1,074
163
Miracle grow soil is inappropriate for cannabis, its packed with nutrients, feeding on top of that has likely started to "lock the plant out" meaning that despite having access to the nutrient it needs it cannot use it because there is too much of it. The plant is consuming itself instead. Thats what I can tell you with the abundance of information you have provided.

pH is too low for soil.

Do you own a ppm/ec meter?

Transplant would help more than a flush. Flushing would likely stress the plant out more.
 
tobh

tobh

Supporter
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Here, I'll help you out since following instructions seems to be... challenging. Let me help you help us help you.

1. Are you growing from seed or clones?
2. How old are your plants?
3. How tall are your plants?
4. What size containers are they planted in?
5. What is your soil mix?
6. How often do you water and what type of water do you use?
7. What is the pH of your water?
8. What kind of fertilizer do you use and what is its NPK ratio?
9. Do you foliar feed or spray your plants with anything?
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")
11. How close are your lights to the plants?
12. What size is your grow space in square feet?
13. What is the temperature and humidity in your grow space?
14. What is the pH of the soil?
15. Have you noticed any insect activity in your grow space?
16. How much experience do you have growing?

Copy those questions, paste them in your response, answer all of them. In that order.
 
Newbie27

Newbie27

272
43
Dr.B said:
Miracle grow soil is inappropriate for cannabis, its packed with nutrients, feeding on top of that has likely started to "lock the plant out" meaning that despite having access to the nutrient it needs it cannot use it because there is too much of it. The plant is consuming itself instead.

pH is too low for soil.

Do you own a ppm/ec meter?
Click to expand...
No 😓 but i do ph the water
 
Newbie27

Newbie27

272
43
tobh said:
Here, I'll help you out since following instructions seems to be... challenging. Let me help you help us help you.

1. Are you growing from seed or clones?
2. How old are your plants?
3. How tall are your plants?
4. What size containers are they planted in?
5. What is your soil mix?
6. How often do you water and what type of water do you use?
7. What is the pH of your water?
8. What kind of fertilizer do you use and what is its NPK ratio?
9. Do you foliar feed or spray your plants with anything?
10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")
11. How close are your lights to the plants?
12. What size is your grow space in square feet?
13. What is the temperature and humidity in your grow space?
14. What is the pH of the soil?
15. Have you noticed any insect activity in your grow space?
16. How much experience do you have growing?

Copy those questions, paste them in your response, answer all of them. In that order.
Click to expand...
I rather let the plant die.before i answer allll those questions😩😂😭😂😂😂😂😂
 
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