Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Back to Grow Questions

Leaf yellowing, brown spots

Elgarstarted grow question 4y ago

Hello guys, I have a leaf problem. There are purple stems, discolouring - yellowing and brown spots. I have added a lot of calmag and biogrow (Nitrogen) but the problem is worsening. I need your advice. Thanks

Elgar

Elgar

Elgar

Elgar

Elgar

Solved

Leaves. Color - Yellow

likes

GMSgrowsanswered grow question 4y ago

Have you done a proper diagnoses. Check your runoff ph and ec levels. Feeding cal/mg every time you feed is not needed. Once a week should be sufficient. Adding cal/mg all the time just overloads it. Especially if your ec is already creeping up on you. Next watering check your values, get them back in their proper values. Cheers

3 likes

Complain

Selected By The Grower

Similar Grow Questions

Solved

Nutrient Deficiency - In Flowering Period It is giving me a hard time to upload photos here. In my week 11, there are photos of my deficiency. Temps 75-80 Using well water at 500 ppm and 7.3 ph. GH gro-micro hardwater-bloom @ 5-10-15ml./gal. at 5.7 ph. Plan on watering til run off today, as I never tested/had any run off

Leaves. Edges burnt

Leaves. Color - Yellow

Feeding. Deficiences

5y ago

2

2

Solved

Nutrients Can anyone tell me if my ladies are lacking nitrogen

Leaves. Color - Yellow

Feeding. Deficiences

5y ago

2

2

Solved

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?

Leaves. Color - Yellow

Leaves. Color - Red or pink

5y ago

2

4

Solved

Normal Yellowing?Is this leaf yellowing normal for mid flower? I’ve been feeding her Greenleaf Nutrients MegaCrop, Sweet Candy and Bud Explosion with some GH calmag.

Buds. Other

Leaves. Color - Yellow

5y ago

2

1

Solved

Leaves turning yellow I have leaves turning yellow on the bottom of my plants and than falling off, there 2 weeks in to flowering and i am giving less than recommended (by the supplier) nutrients, I am feeding them 2x a week. Should I be increasing the nutrients?

Leaves. Dropping off

Leaves. Color - Yellow

5y ago

2

3

Solved

Iron?Hi everyone .. my girl is getting some red stems and yellowing on the new leafs ? Can this be iron?

Leaves. Color - Yellow

Plant. Stem - Red or purple

5y ago

4

5

Solved

Leaf problem help me :(i can't understand why some leaves become autoflowering this way, ph 6.5 i use the fert di biocanna day tempersture 29 night temperature 22 18h photoperiod then they turn completely yellow until they come off on their own, the rest of the plant is completely only some leaves do

Leaves. Color - Yellow

5y ago

1

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

5y ago

3

4

Solved

Why are those leaves damaged?Can you share your opinions about this form of leaves yellowing on buds please?

Leaves. Color - Yellow

5y ago

2

2

Solved

Bad water?Soooo this plant has been suuuper healthy all its life. Now in a new pot after a few days and some 6.5PH tap water with nutes and she is loosing a few leaves. Why exactly is my question. Is the water full of lime?

Leaves. Curl down

Leaves. Dropping off

Leaves. Color - Yellow

5y ago

2

Solved

Magnesium deficienty or azoto deficienty???Is deficienty azoto or magnesium ???

Leaves. Color - Yellow

5y ago

1

1

Solved

Magnesium deficienty I have a magnesium deficiency some leaves are about to turn yellow, you advise me to wash the substrate with water at ph 6 and then put calmag or calmag I add it to i fert ??

Leaves. Color - Yellow

5y ago

1

3

Solved

What is my leaves yellow?The pH is 6.5 watering and run-off. I use CalMag with the nutrients. what is the Reason of the yellowing of the leaves?

Leaves. Color - Yellow

5y ago

5

Solved

Too much nutrients?Hi! My arjans Ultra haze is in 10th week of flowering and she has some kind of damage, what could it be and how can I fix it? Thank you!

Leaves. Tips - Die

Leaves. Curl down

Leaves. Color - Yellow

5y ago

3

3

Solved

yellowing on bottom leaf but rest are fine?Why is my bottom leaf turning yellow but rest are fine?

Leaves. Color - Yellow

5y ago

1

6

Solved

Skinny, yellowing, distant growth hello! can someone help me identify this problem? my plants are a little behind but i have an issue with two of them... the leaves are skinny and yellowing and pretty distant. the new growth starts off green but skinny and canoeing immediately. temp is around 73-75 degrees far.

Leaves. Color - Yellow

5y ago

1

2

Solved

skinny yellowing leaves hi! can someone help me identify this problem? my plants are a little behind (7 weeks old) but i have an issue w/two of them... the leaves are skinny and yellowing and pretty far apart the new growth starts off green & skinny and canoeing immediately. temp is around 73-75f

Leaves. Color - Yellow

5y ago

1

2

Solved

Deficiency?Is this a nitrogen deficiency? yellowing on the edges! I would like to get the little seed into good shape before changing it to 12-12 🌱

Leaves. Color - Yellow

5y ago

2

2

Solved

Tip turned yellow and crisp Can someone help me please. I just found out the tip of my leaves turned yellow and crisp why is this happening? I feed them ph balanced water with calmag every other day then given it 1/4 dose grow nutes last week. I don't understand why this has happened.

Leaves. Edges burnt

Leaves. Color - Yellow

5y ago

3

3

Solved

Flushing in coco How do I flush a 3 week old plants grown in coco/perlite mix. It seems like I got nutrient lockout Does the water need to be PH balanced or regular tap water( tap water sits at 7.5) and I grow them in 12L pots I hope flushing won't hurt there little roots

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Yellow

5y ago

1

2