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Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 6y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color · Yellow
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TimTheTerpMan
answered grow question 6y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
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Selected By The Grower
Similar Grow Questions
Solved
laberg
Possible toxicity or deficiency?
I saw this on one of my bottom leaves this morning. Hopefully someone can give insight of what it might be. I'm concerned that it is phosphorous deficiency. I didn't notice it a day ago, but I wasn't looking closely. 2 days ago I watered her (540 mL, 1/4 tsp nutrients). Thoughts?
Week 3
Leaves. Color · Yellow
Feeding. Deficiencies
4y ago
5
5
Solved
I_Love_Kush
Brown / Yellow / Rusty Spots
Hello Guys! Today I noticed a lot of brown / rusty spots on my plants sugar leaves, and I am wondering what it is and could be. I am concerned. These are clones of a CBD strain. PH always is 6.2
Leaves. Color · Yellow
4y ago
2
6
Solved
PanchitoGrow
Yellow tips on new leafs and some fan leaves
I've been dealing with this yellowing tips on one of them. Have been watering same as the other but this one appeared to be stressing for some reason, been using recharge +cal.mag 1/2 tsp gallon. Any ideas what might have been causing this, light is a SF1000 18" 80% intensity dim
Leaves. Color · Yellow
6y ago
1
1
Solved
MoldyCrow
Age or Deficiency
I have noticed one of the girls fan leaves have all started turning yellow and drooping. It looks like they are turning from tip to stem and some of the smaller leaves have also started to turn. Is this due to age or a deficiency of some kind?
Week 7
Leaves. Color · Yellow
Leaves. Color · Red or pink
6y ago
2
4
Solved
Pjm70
Yellow lower leaves
Lower leaves are turning yellow. She just started her second week in flower. My first thought is I'm not feeding enough. She is short, but still a lot of plant here. Here upper leaves are a nice shade of green. She prays all day long. Is this a problem.
Leaves. Color · Yellow
4y ago
2
4
Solved
Reckoning91
Hojas amarillas
Automatic 2nd week flowering I've been applying bio bloom 2ml per liter of water in the last two waterings The older leaves are turning yellow Could it be nutrient excess? Lack of water? Outside it's been 34 degrees the last few weeks
Leaves. Color · Yellow
4y ago
3
Solved
HEDONBOY
URGENT HELP!! YELLOWING TIPS IN NEW LOWER LEAF SET ONE SIDE ORGANICALLY GROWING ONLY 1 BRANCH OF 1 PLANT HAS THIS
This is happening on only 1 out of the 4 plants. I've pre amended soil with organic fertilizers and always watering in recommended 6-6.5 Ph ranges soil Ph is slightly above 7. Have recently topped with vermi compost and bloom mix but this has been here since WEEK3 DAY 2.
Week 3
Leaves. Color · Yellow
4y ago
1
2
Solved
Gorgonite
What’s going on here?
What’s going on with this one bud on Cotton Candy Kush plant? It has some leaves dying. No damage to the stem & only bud looking this way. It’s on day 50 of flower and has been getting lighter leaves overall this week. It’s supposed to flower 50-60 days, according to the breeder.
Week 11
Leaves. Color · Yellow
4y ago
4
3
Solved
Mr_Maritime
Yellowing veins?
Any idea what could be causing this? The yellowing stems from the veins rather than between. Any picture I find online of something similar 404s. I might have fixed it in my next set of leaves, but still baffled.
Leaves. Color · Yellow
4y ago
1
3
Solved
Magic43562
Yellowing leaves
I have 8 plants running outdoors right now. I am feeding 3X’s a week with the humbolts starter pack. I am getting a lot of yellowing on my fan leaves. Buds look healthy and are swelling. Should I be worried?
Leaves. Color · Yellow
5y ago
2
2
Solved
Sitej
Good afternoon My first grow on coconut substrate. The edges of the leaves have turned yellow. I give Kalmag at each watering 0.5 ml/l, maybe it’s not enough? Fertilizers Grow 0.9 ml/l Micro 0.6 ml/l Bloom 0.3 ml/l. Ph - 6.0 - 6.2. I noticed problems on the 17th day.
Week 2
Leaves. Color · Yellow
3y ago
4
3
Solved
2020Grower
Please help :(
Can anyone please tell me what deficiencies I have here ?
Leaves. Color · Yellow
Leaves. Other
6y ago
2
Solved
Weediz
Light-green stripes in the middle of big leaves
Its my first time growing in coco, and I think the girls is growing more slowly than they should and I have found some light-green stripes on my leaves. Any idea what might be wrong?
Week 4
Leaves. Color · Yellow
4y ago
5
6
Solved
The_cannabis_botanist
Yellow Leaves
I need some help for my TD2. I got some yellow leaves on top. I fed her with Iguana Grow 3 ml and 4 Ml Cal Mag plus on 3/08.
Week 7
Leaves. Color · Yellow
7y ago
2
2
Solved
Queenbud
yellow dots
Can anyone tell me - what do the yellow dots on her leaves mean? (very visible on day 16)
Week 3
Leaves. Color · Yellow
6y ago
1
2
Solved
Ph0en1x
Brown/rust spots and yellow leaves at the bottom
Plant in late veg (soil) is showing spreading brown/rust spots on upper leaves and rapid yellowing on lower leaves. Frist only at one plant and now at the others too. I suspect a pH-induced Cal-Mag lockout. But I always check pH to be around 6,5. What should I do?
Leaves. Tips · Die
Leaves. Color · Yellow
1y ago
2
2
Solved
EmberWeed
Leaves turning yellow in the 8 week of flower
Should i worry or its normal?
Leaves. Color · Yellow
4y ago
2
2
Solved
420pete
Any ideas to what might be causing these leaves to yellow/die? Only reasons I can think of are nutrient lockout, having the lights too close (although I've heard with CFLs theres pretty much no such thing as too close) or possible having the heater running, or constant fan air
Week 3
Leaves. Color · Yellow
8y ago
5
7
Solved
smoker_zivus
She doesn't look healthy
I want to ask why the leaves wither and yellow. Because they have too much water or little air. what is more harmful to it overflow or hard and bad clay?
Leaves. Color · Yellow
6y ago
1
1
Solved
Accidental_Grower84
Yellow spots on lower fan leaves
Hi Growers! First grow here and I am concerned about new yellow spots on my lower fan leaves (one tip is dark too). Soil is Atami Kilomix, heavily fertilized. 2 days ago only one leave was affected. What can it be? Mg deficiency? N deficiency? Too less water (100ml every 3days)?
Week 6
Leaves. Color · Yellow
6y ago
1
1