The Grow Awards 2026 🏆

Back to Grow Questions

Deficiency issue??

MagicManstarted grow question 6y ago

I'm having an issue with some type of deficiency it seems. Started with older lower fan leaves going yellowing and turning brown andveventually crisping on the tips and the leaf dies and falls off. Has moved up to newer fsn leaves. My thoufhts are Magnesium deficiency..ph 6.5

MagicMan

Solved

Leaves. Edges burnt

likes

Darkwarsongsanswered grow question 6y ago

Looks to me exactly like the hear stress I saw in my outdoor lady last year.. 30 or higher is just too hot with them.. Especially if the humidity gets lower. A fellow grower Mrs_larimar turned on to this Chart.. http://www.just4growers.com/media/23631/vpd_2degree.gif .. lovely visual representation of what the plants need are.

1 like

Complain

Selected By The Grower

Darkwarsongsanswered grow question 6y ago

If you have issues reading the chart... It basically says optimum Humidity of 60-52.5 rh is ideal for healthy vegetation in late flower with a Temperature range of 30 degrees Celsius. Try to move it to a more shaded area that still gets an average amount of sun.. Again it's a wonderful chart and I hope this helps.

likes

Complain

Similar Grow Questions

Solved

Nute burn?Had a heatwave last few days cooled down now but 1 plant got what looks like nute burn, just wondered if I should remove the affected leaves? Thanks in advance!

Leaves. Edges burnt

5y ago

1

1

Solved

2ofyn52aUdHza4Y

Nutrient deficiency which kind and/or light burn?Do I have some nutrient deficiency or light burn or maybe both? Looks like maybe P or K? I changed my light to a HPS and the plants grew much closer to the light so could be too much PAR/heat so I raised the light. I also had started to add Cal-Mag to my feed just before.

Leaves. Edges burnt

Leaves. Tips - Burnt

3y ago

4

3

Solved

K deficiency or excess?What do you think of this leaf? Week 10 critical punch auto

Leaves. Edges burnt

Leaves. Color - Dark-brown

5y ago

3

3

Solved

Ancient_Genetics

I need some help . my PH of soil is problem , and i can't just replant them now becouse i just plant them in 5l pots , and they are stress out of it a I have a problem with my uper leaves turning yelow on the edges, and she can't use phosphorus, becouse PH of soil is 7,35 to 7,65 depending on part of soil i check, how can i lower my soil PH to 6,2 to 6,9 ,If someone now a good way to solve this problem, I would be grateful.

Leaves. Edges burnt

Leaves. Curl down

3y ago

4

4

Solved

I am not able to recover my plants are deficient and I can't recover, at first she was showing signs of lack of phosphorus but then it only got worse and all the strains are from different seed banks

Leaves. Edges burnt

6y ago

1

2

Solved

DWC brown leaf edges DWC Leaves browning on edges. Ph is 6.0, ppm 358, temp 66. PPFD I believe was around 400. Plant next to it has the exact same conditions.

Leaves. Edges burnt

4y ago

3

4

Solved

Flowering issues First time! Everything perfect until 1st week flowering. After that started the issues. Is overfeeding, is hungry, to much water? The second week flowering I started Cal mag, alg a mic, bioheaven to help the situation. Before that only npk. Watering 1-2 per week

Leaves. Edges burnt

Leaves. Color - Yellow

Plant. Too short

4y ago

4

5

Solved

What could this be?High fam. New grower here and wanted to know what this means and how can I fix it/prevent it. Take a look at the leaves start forming brown spots. I only see it in a couple of leaves and slight browning at the tips. Please help. Thank you. Many mote questions to come.

Leaves. Edges burnt

Leaves. Tips - Burnt

1y ago

4

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

6y ago

2

Solved

I probably have spider mites on my plant. Yesterday I sprayed it with Maag oil. Today I bought an organic product and sprayed it on the plant. Are the discolourations on the plant caused by the mites or burns due to increased light from the drops? Or a lack of nutrients?

Leaves. Edges burnt

Leaves. Curl up

Leaves. Curl down

6mo ago

1

Solved

Weird leaf It seems one of my leaves has become very oddly curled up. It has very slight brown spots with a strangely curled up tip. As seen on Week3-day19. Can anyone identify some sort of problem like excess or deficiency of nutrients?

Leaves. Edges burnt

Leaves. Curl up

Leaves. Color - Yellow

5y ago

2

2

Solved

Aiuto come posso rimediare?Brutte carenze sulla ragazza , uso fertilizzanti bionova , e seguo i dosaggi, cosa dovrei fare?

Leaves. Edges burnt

Leaves. Veins - yellow between

5y ago

1

2

Solved

Bottom leaf turned yellow with brown on edge Hello this is my first grow and had noticed a leaf turned yellow with brown spot on the edge. This is a northern light auto just kicking off with her flowering. I use advanced nutrients 3 in 1 micro grow and bloom and that's all I've ever used. I suspect a nitrogen deficiency...?

Leaves. Edges burnt

Leaves. Color - Yellow

5y ago

3

2

Solved

Some brown and crispy tips to buds. I think burn from crazy hot sunny days after all the rain/clouds over last couple weeks. I have cut off affected part an inch below, and no sign of worms and doesnt look like rot. Any suggestions are appreciated.

Leaves. Edges burnt

6y ago

1

1

Solved

Heatlight stress?Can someone tell, are these brownish tips the sign of the heat stress or something else? And how bad is that for the plant's not so distant future? She grows indoors. Peak DLI was almost 60 but very briefly about one night. Now it's dimmed to 40dli/~600ppfd/ 20/4 schedule.

Buds. Other

Leaves. Edges burnt

1y ago

3

6

Solved

(updated picture) is this light burn

Leaves. Edges burnt

5y ago

2

2

Solved

Leaf burns I have the following problem with my ladies, they are in Vegi 2 and now the lower leaves are getting burnt tips. I use Biocanna Bio Terra Plus soil and Biocanna Bio fertilizer according to the FastBuds autoflower schedule. What could be the problem ?

Leaves. Edges burnt

Leaves. Tips - Burnt

10mo ago

2

6

Solved

Chlorosis Virus Disease?Ph 5.8 / 6.0 Ppm 800 ,ec 1.6, reservoir water 68f Room 77f

Leaves. Edges burnt

Leaves. Veins - stay green

5y ago

2

2

Solved

Bad ph? Overfert? Bad airflow? 24h of continuous exposition to ligths?So... my "sativa" pot1 pheno are maturing faster than my "indica" pot2 pheno and both are showing signs of stress visible on leaves, with tips curling up and getting burn, started with some yelow on tips and progressebly burn, this is affecting the upper region! should i flush?

Leaves. Edges burnt

Leaves. Curl up

6y ago

7

4

Solved

Yellow leaves and yellow circle on leaf Hello , maybe someone knows what's a yellow color on Cookies leaves? not sure about ph level...

Leaves. Edges burnt

Leaves. Color - Dark-brown

3y ago

3