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Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 5y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color - Yellow
likes
TimTheTerpMan
answered grow question 5y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Beccabud
General health
Advice please just on wether it's looking healthy. :) I've been too careful with watering and some leaves turned yellow. Feeding 1 litre every other day but maybe that's too little? Stopped with the Biobiz fish and switch to growbloom. Leaves at the top look droopy still?
Week 4
Leaves. Wilting
Leaves. Color - Yellow
Feeding. Schedule
3y ago
6
6
Solved
Densko
What symptoms?
I was wondering what stress or deficiency is showing on the leaves. They have had periods of of drought and high heat
Leaves. Color - Yellow
2y ago
2
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Solved
Nontraveller
Begginner needs help.
The first plant is in 10th day. It looks so weird. Im using biobizz light mix and Harvest Master Pro RB330. Dimmer is 50% and space between plant and light is 45cm. I've got Biobizz grow-bloom-topmax. Can you help me? :( 2. plant is in 3rd day. I want grow this one in properway
Leaves. Too few
Leaves. Twisted
Leaves. Color - Yellow
1y ago
2
2
Solved
pawsz
Splotches on leaves
What is this discoloration on my plant? Ph issue? Low phosphorus? Don't see any evidence of bugs... Color isnt as green as the plant still in veg.
Week 5
Leaves. Color - Yellow
5y ago
3
1
Solved
Grower422
Whats wrong with her
Watering every 3-4 day with around 1,75 Liter, Ph 6,3. Once a week feeding biobizz fertliza, about 1/3 of the recommend amount. It started 1 day ago, after watering and feeding.
Leaves. Tips - Burnt
Leaves. Color - Yellow
1y ago
1
1
Solved
Nontraveller
I guess deficiency of ?? Leaves got sharpened also.
Hi there, 2 plants of bluedream auto. One of them 18days and the other one 22days old. There are some yellow marks on the leaves. Can you help me? Is there N or Mg deficiency or another problem? I watered yesterday when the lights turned off. Thanks.
Leaves. Curl down
Leaves. Color - Yellow
Setup. Strain - Autoflowering
1y ago
1
2
Solved
Fre_84
Overfertilization? What could it be?
Hi guys I'm in the seventh week. What could it be? Out of 5 plants, of five different types, two plants have plagron substrate. The other three plants have a biocanna substrate and do not have this problem. Overfertilization?
Week 3
Leaves. Color - Yellow
Plant. Other
4y ago
2
3
Solved
Labbu
Dont want to loose it
11 days seedling..growing in coco mix..what could be the reason behind drooping leaves and yellow tips...other seedling in same pot looks normal though.
Leaves. Color - Yellow
4y ago
2
3
Solved
fathermichael
Sudden Leaf Yellowing – Lighting Issue or Something Else?
Hello! Yesterday, I noticed the top leaves turning slightly yellow, but today it looks dramatic. Check the pictures—leaves are yellowing and drying out rapidly. It’s only affecting the central leaves, so I suspect a lighting issue, but I’d like to confirm before taking action.
Leaves. Curl up
Leaves. Color - Yellow
7mo ago
3
Solved
Mz876
What’s wrong with my plant
Help what’s wrong with my plant . Why are a few of my leaves looking like this
Leaves. Color - Yellow
4y ago
5
6
Solved
Kwczekus
Help!!
Help I've been in the hospital my husband's been watering but my plants are sick help what do we do?
Week 6
Leaves. Edges burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
6
Solved
InOverMyHead
Help with unhappy plant
Started developing yellow/brown spots last week. Watering approx 2L every 3 days. Soil is HF/OF/perlite mix. Gave first feeding of FF Trio at 1/3 strength 2 days ago but she's continuing to look worse. More spots, lack of color and droopy leaves.
Week 5
Leaves. Color - Yellow
2y ago
6
6
Solved
FreddySpaghetti
Leave's tips color turning yellow
Ciao a tutti, da 2 giorni ho notato che le punte delle foglie si stanno ingiallendo. Ho pensato di allontanare la luce dalle ragazze, nonostante stia usando una LED (marshydro ts1000). Sapreste dirmi cosa sbaglio? Dovrei agire anche sulla quantità di nutrienti?
Leaves. Color - Yellow
4y ago
1
4
Solved
laberg
Yellow discoloration again
I'm annoyed by having to post another question but oh well. Yesterday evening I increased the PAR from 370 to 400 in center. This morning the top fan leaves were pointing straight up and so I raised the lights a little. I later looked and saw discoloration. Light burn?
Week 5
Leaves. Veins - stay green
Leaves. Color - Yellow
3y ago
1
2
Solved
Nigs4200
White spots on a few leaves
Any idea what these whitish yellow spots are? They appeared overnight. I'm growing in ffof with perlite and ewc. No nutes added yet, just bush doctor cal mag at half dose 3 days ago with great white, recharge, and photosynthesis Plus which was the last watering of 1.2 liters.
Leaves. Color - Yellow
Leaves. Other
1y ago
2
2
Solved
cezario
Discoloration leaves while in flower
One plant is showing discoloration. Got a suggestion it might be a nitrogen deficiencie. Wanted to get a conformation on this and if possible some help how to fix it,
Week 19
Leaves. Color - Yellow
3y ago
1
8
Solved
dutchMASTAkilla
Noticed these yellow spots this morning. Not sure if this is a nute deficiency, leaf septoria or too much light. My lights were pretty low as my tent isn't very tall. Have been watering at around 6.4 and recently started feeding a full dose of Big Bloom and Tiger Bloom.
Week 6
Leaves. Color - Yellow
6y ago
9
4
Solved
ykscotttyk25
My plant is sick like never before,should I end her life or wait for a merical
My plant is sick like never before,should I end her life or wait for a
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Yellow
1y ago
4
4
Solved
Zweibel
Light burn?
I noticed the tips of the top leaves are becoming paler, even slightly yellow. Could this be light stress/burn? My LEDs were approx. 30 cm from the canopy, now moved them up 15 cm.
Week 5
Leaves. Color - Yellow
5y ago
3
3
Solved
spaceweedgrower
Yellow spots and droopy leaves - RQS Shogun photo
Hi! 2nd week after 1st true leaves. 70/30 buffered coco/perlite. Terra Aquatica Tripart. Feeding 2×/day, 200ml in, 100ml runoff. Always 1.5ml/L CalMag. pH ~5.9, EC diff ~150–300. Suspect calcium def., leaves droopy. 18/6 200w led 60cm. Room 23C, ~70% RH. Any help appreciated!
Leaves. Color - Yellow
5mo ago
1
2