Back to Grow Questions

Spots on the leaves

cpavanstarted grow question 6y ago

Hello guys, I noticed some spots on the leaves from one of my plants. As I’m a new grower, I don’t have any idea about what is it. Could you guys help me with this?

cpavan

cpavan

cpavan

cpavan

Solved

Leaves. Edges burnt

likes

Bloombusteranswered grow question 6y ago

Hey buddy! This is the start of a phosphorus deficiency! Spots on the leaves, red stems! 👆 Solution to the problem: 1. Set the appropriate pH of your substrate. If it's coco + a mix of perlite, etc., then it's considered hydroponics and you need the pH for hydroponics! Set the watering acidity to 5.7-5.8 pH 👌 👆 If you have soil - 6.3-6.4 pH. 👌 👆 2. Adjust the nutrients: grow:bloom ratio 1:4 If you're using micro nutrients, then don't add "grow" at all! Bloom - 4ml/l Micro - 1ml/l or grow 1ml/l 👆 Good luck, buddy! Stay healthy, wishing you growth! ✊ 😇

2 likes

Complain

Selected By The Grower

ijustdontgiveafanswered grow question 6y ago

hi there.. without knowing any more about your environment and feeding-habit, i would say it's a nutrient deficiency.. the dark necrotic spots could be due to a calcium deficiency.. the yellowing could be magnesium or nitrogen (if on older leaves). what is your feeding schedule and how much (and what's your growing medium? soil? coco? peat?)

1 like

Complain

Similar Grow Questions

Solved

Burned tips What's that? Could it be cal/mag deficiency? I don't think that's light burn cause it happens on the lower leaves too. Sometimes I can see even discoloured patches.

Leaves. Edges burnt

6y ago

2

3

Solved

I have problem with my plants. Maybe caused adding root juice to watering to soon. Using all mix soil. 40% humidity and 27°C under 250w hps. 50cm distance from plant. Uploaded picture above. Tnx for any advice 🌱

Leaves. Edges burnt

8y ago

1

1

Solved

2 plants, one has slight burns on the edges of a couple leaves. The other has small white spots but I can't see any pests. They have been side by side all along but different issues. Any help on what the problems could be?

Leaves. Edges burnt

7y ago

2

5

Solved

Canna_ballistic

Burnt tips and edges Not sure what's happening, first time seeing this.. The ec went up, have corrected that, ec is now 1.2, ph 5.9-6??, 5 weeks into flower only just started happening

Leaves. Edges burnt

Leaves. Tips · Burnt

7y ago

2

Solved

Seedling problem My seedlings lower leaves arenturning yellow and crisp. Temp was high with humidity low for a couple days and some fluffy white mold deep in soil I also didn't have all the dirt I normally use for a mix and had to use 2/3 happy frog 1/3 coco loco so the soil is acidic or over wat

Leaves. Edges burnt

2y ago

1

Solved

plant discoloration why is my plant discolored at the tips at this young age?

Leaves. Edges burnt

Leaves. Tips · Burnt

Leaves. Color · Yellow

6y ago

2

3

Solved

burns on tips and edges the large leaves seem to be fine, but the small ones between the internodes are developing several burns Soon I will proceed with the washing, but what could it have been?

Leaves. Edges burnt

Leaves. Tips · Burnt

6y ago

1

1

Solved

Mg def Underwatering ??I have an issue with some leaves getting strange symptoms. Maybe Mg def and/or Ca def + Underwatering ?? 😖 Hygro : 63% Temp : 23/20 Water : 0,33L per plant each 3 days … Show more

Leaves. Edges burnt

Leaves. Dropping off

5y ago

1

3

Solved

Canoeing leaves and burnt ends Canoeing and burnt tips of leaves. Temperature usually between 27 tp 29 degrees. Quite low humidity says 10% but not sure this is correct. Veg stage week 3 Any help greatly appreciated.

Leaves. Edges burnt

Leaves. Tips · Burnt

Leaves. Curl up

5y ago

3

Solved

Nute burn?Is this nute burn or something else? Growing in 5 gallon fabrics pots with soil / the bottom has super soil. Plants are 100 days old.

Leaves. Edges burnt

2y ago

3

Solved

Stressed or not?How does it seem to you ??? Sincerely please ... Expert comments are welcome! The cause of all this, were many insects that had settled on each bud, I immediately washed them with water and I did not take pictures, because I was panicked .. Can anyone tell me what insects they

Leaves. Edges burnt

6y ago

1

1

Solved

Exceso o falta de nutriente I just noticed yellow spots and brown edges on one of the lower leaves of the plant. Do you know if it's a nutrient deficiency or excess? So far, it's only happened on this leaf. Thanks!!!

Leaves. Edges burnt

6y ago

2

2

Solved

Leaf edges pointing up, why is this tho? Rh: 65% temps: 22.5°Celcius Fan blowing over them. Phlizon 1000w both switches on at 27 inches from the top. Also dark spots appearing in the second set of leaves.

Leaves. Edges burnt

Leaves. Other

Plant. Other

6y ago

1

5

Solved

JustARegularEveryDayNormalMF

Week 2 problems Well,another week,another problem... Would you say this is a cal/mag issue? The brown spots? It just isnt going easy for me... I have a powdered calmag,says it is best to do a 10% solution with water, 9% Ca and 6% Mg is the composition.

Leaves. Edges burnt

Other. General questions

Feeding. Deficiencies

6y ago

4

3

Solved

Help! What is this?! Upper leaves turning yellow/brown but not the lower ones. Light burn?

Leaves. Edges burnt

Leaves. Color · Yellow

Leaves. Color · Dark-brown

3y ago

1

1

Solved

Heat shock from heat matrasse.Heat mat overheating 30C° and burning seedlings. Leaves look crispy now. Removed the mat from under and just layed onto the side of my propagator tent. Temp now 27C°. RH still 30%. Ordered humidifier but thats 3day til arrives. Poured water to their tray. What else should I do?

Leaves. Edges burnt

Leaves. Tips · Burnt

Leaves. Curl up

4y ago

2

Solved

Jaygrow1020_autoking

Growing slow I believe I know what the problem is. I think my soil is to hot. I guess the question is, how to resolve this....

Leaves. Edges burnt

Plant. Too short

5y ago

2

2

Solved

Help in identifying Burnt tips amnesia haze Hello, If anyone can help me identify the cause of these burnt tips it would be a great help! For info: Amnesia haze week 9-10 Ph runoff is 6.4… Show more

Leaves. Edges burnt

Leaves. Tips · Burnt

6y ago

4

3

Solved

Necrotic spots The last day or two I’ve had a bunch of necrotic spots pop up on the lower 3 sets of fan leaves. She is at node #5 now and starting to put out pistils. Is this phosphorus deficiency? I changed the res as it was close to a week anyways. Thanks all for the help. Happy Growing!

Leaves. Edges burnt

Leaves. Curl up

Leaves. Other

6y ago

1

Solved

Was ist los ? Magnesium mangel oder Stickstoff..Hilfe Hey guys, I don't know what's going on. My ladies seem kind of sad. They were repotted 14 days ago and have now received fertilizer twice. Before that, they had pH adjusted water for 10 days. The fertilizer is Canna Terra, and I'm giving 3 ml per liter of water plus CalMag.

Leaves. Edges burnt

Leaves. Tips · Burnt

2y ago

2

1