Back to Grow Questions

Light burn or nutrient issue?

Ezdeezy89started grow question 4y ago

Light burn or def? 83-85 temps, same with leaf surface. 1000w HPS 24-30 inches from canopy Always run my flower ppfd around 1200umol with 1400 ppm co2, up to 1500 umol later in flower. I'm 3 weeks in, never had this issue but I can't figure out anything else that it might be.

Ezdeezy89

Open

Leaves. Color - Yellow

1 like

Answer

Robertsanswered grow question 4y ago

What is the substrate pH? Would check that first. If that is out of range then that is the issue.

likes

Complain

Similar Grow Questions

Solved

Nutrient problem?12 days old gorilla by fastbuds, what could be the problem?

Leaves. Color - Yellow

Plant. Other

3y ago

1

Solved

Brown leaves and red stems. Is this a calcium deficiency ?I had an iron toxicity recently that may explain the brown parts but it may look like calcium deficiency. There are many red stems too but it maybe something else like the bad Ph and overfeeding from the previous month. What do you think ? Thanks !!

Leaves. Color - Yellow

Leaves. Color - Red or pink

5y ago

2

2

Solved

PLease Help ! Northern light auto What's happening to her? what should I do?

Leaves. Color - Yellow

Other. General questions

5y ago

4

4

Solved

Yellowing, browning leaves Here is my Northern Lights Auto which is on Day 75 from sprout These 2 photos are taken 3 days apart to show the progression of whatever is happening. 4ml Biobizz Grow 4ml of Biobizz Bloom 2ml of Calmag Per litre, use 2L of water every watering

Leaves. Color - Yellow

4y ago

1

1

Solved

What kind of deficiency is this?It has been like this for 5 days or so. It looks to me like Iron deficiency but I don´t think that´s probable. I flushed her in order to get rid of salt excess but she didn´t recover any. TIA

Leaves. Color - Yellow

6y ago

1

2

Solved

Seedling yellow green?? Help I was wondering on what is causing this? Sprouted today and its this color… help? Im using super coco

Leaves. Color - Yellow

3y ago

2

9

Solved

Ph/defiancy/ruined right I think my ph is off so I've fulushed the plant with water at 7.2 and the run off was coming in at around 6.4 if I feed them at 6.4 will that fix the problem I k ow its already a bit late aswell check my diary for more info I have multiple plants like this but not as bad

Leaves. Dropping off

Leaves. Color - Yellow

Feeding. Other

6y ago

2

Solved

Yellow leaf tips on healthy plant in dwc week 8 from seed vegging Why are the tips of the leaves yellow on the highest growth points of the Brain Cake? - light burn? Since a few days the light is at 80% (mars sp3000 300w full spectrum led in a 60*120cm at 80cm above the top of the plants) - nutrient burn/shortage? Res changed a few days ago

Leaves. Color - Yellow

6y ago

3

4

Solved

Insects Spider mites.. What to do with them and how to get rid of them?

Leaves. Color - Yellow

Plant. Other

4y ago

4

3

Solved

New growth on my plant has discoloration on leaf tips,possible causes?

Leaves. Color - Yellow

6y ago

1

3

Solved

Is this yellowing normal or something wrong?Hey fellow growers, seeing yellowing on the leaves the past few weeks which I know is normal as you transition through flower, can someone help diagnostic the leaf issues in the video this week, I thing that this is just nutrient burn but would appreciate if someone could confirm

Leaves. Color - Yellow

Leaves. Other

Feeding. Chemical composition

6y ago

5

5

Solved

Could this be light stress? I dont think it nutrient burn, as I have been taking it very easy

Leaves. Color - Yellow

4y ago

4

Solved

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.

Leaves. Color - Yellow

6y ago

3

1

Solved

Hello guys, some leaves are yellow, it's only 2-3 leaves in the middle, middle low part of the plant.Yellow at the end of the leaves and green at the base of the leaves, it's subtle thing but I'm afraid it will worsen and spread over time

Leaves. Color - Yellow

3y ago

3

4

Solved

Light green tops I've got one plant with extra light green tops. Any suggestions or is this normal sometimes? See my diary for feeding details. I've treated all plants exactly the same the only difference would be the type of pot (airpot) and I didn't root prune like I did the others.

Leaves. Color - Yellow

1y ago

6

4

Solved

Hey folks, I just noticed some kind faint yellow dots appearing on a couple of the oldest leaves on the Elixir. Any idea if its something to be concerned about? It's my first grow and I have no idea what it could be. Are they just old? Nutes? Disease? Temp? Humidity?

Leaves. Color - Yellow

6y ago

4

3

Solved

Желтеют листья на цветении Друзья, листья желтеют во время цветения. Это нормально? Причем девочка 1 и 2 начали желтеть одновременно, а #3 у которой мой кот откусил макушку и она стала отставать в развититии пожелтели через 3 дня. Это такой период жизни?

Leaves. Color - Yellow

3y ago

3

Solved

1st grow yellow leaves and brown spots Last two days some big fan leaves started to get yellow with brown spots. Im half way through flowering stage. Is that normal? Can it be nutrient deficiencies if some of these leaves are on top?? It's not overwatering for sure, I'm puzzled :(

Leaves. Color - Yellow

5y ago

3

Solved

Light Stress?Yoo Fellows, Can you share your ideas what kinda problem is it? My first thought is Light stress. Can you confirm this? I don’t see any other problem on the lower part of the plant. Only the top leafs getting yellow at the edge.

Leaves. Color - Yellow

4y ago

4

6

Solved

Yellow spots and dry ends on leaves Hello! What could be wrong with the plant on the left? What do the spots on the leaves indicate? They are 17 days old.. Thanks for the info

Leaves. Dropping off

Leaves. Color - Yellow

Leaves. Color - Mottling

2y ago

2

2