🏆 Last chance to vote!

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

Grow QuestionsBrown / rusty spots? Back to Grow Questions

Brown / rusty spots?

BioBudsstarted grow question 3 years ago

Hi Guys, Any suggestions? Situation: - Bud was close to light - Heat was higher - This is only place on plant - Was the highest bud at the time - Just had watered, maybe overwatered? - Just had put in wood-ash, maybe too alkaline? - Overall bud growth was stunted couple days

BioBuds

Solved

Leaves. Color - Dark-brown

likes

GMSgrowsanswered grow question 3 years ago

Rub your finger across it, if any comes off on your finger it would be some leaf fungus. If it doesn't rub off, could be a calcium issue. Try lowering your ph to 6.2 for better absorption

1 like

Complain

Selected By The Grower

Hashyanswered grow question 3 years ago

The only thing I can think it could be is you may have splashed them leaves. If it doesn't spread anywhere else you will be fine.

1 like

Complain

Similar Grow Questions

Solved

First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Leaves. Other

11 days ago

7

7

Solved

New grower with questions about burnt tips, browning/scrunching leaves and some pale/yellow spots!I noticed Quick One had issues with burnt tips and discoloration by the end of week 1 and 2, what could've been the issue? Apple Fritter is looking sick, brown spots, what is that? Easy Bud and Quick on have slight yellow/paled spots on their leaves, only 1-2, is that normal?

Leaves. Edges burnt

Leaves. Color - Pale

Leaves. Color - Dark-brown

a day ago

3

3

Solved

I wanted to ask if you think this plant has mold or if it's just a major deficiency due to a blockage. I have an indoor plant next door with some plants growing with dark spots, it's in my previous question. Sorry for giving more information, I don't know what would help.

Leaves. Color - Dark-brown

Other. General questions

5 days ago

1

Solved

Verfärbte Blätter Verfärbte und teilweise vertrocknete Blätter bei meiner Autoflower in Woche 9. Nährstoffmangel, Nährstoffüberschuss, zu viel Licht? Grobe mit biobizz biogrow, biobloom und topmax. Woran könnte es liegen?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

8 days ago

3

3

Solved

Hello guys, what kind of problem could this planta have? These are autoflowering plants.

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

a year ago

1

1

Solved

Leaf spotting Is this a light burn issue or nutrient deficiency?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

a year ago

2

2

Solved

Possibly Potassium Deficient? Based on ALL the pics I could find, but not sure.I noticed these brown splotches and leaf edges on one area bud and pistils of my Orange Sherbet last night. Based on what I can find online, this might be potassium deficiency? This is mostly on one spot near darkest edge when tent closed. Thanks!

Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

10 months ago

3

3

Solved

Spots on leaves Any ideas why these Brown spots appeared so quickly?

Leaves. Color - Dark-brown

10 months ago

3

Solved

Leaves are gray/brown and curl down. HELP!Im a first time grower and I cannot figure what’s wrong. I’ve been feeding it Calmag and Grow from Biobizz since last week. 1 ml/l grow, 0,8ml/l calmag. PH of water + nutes is 6.3. The soil is coco and pearlite. Did I give it too many nutrients? Did I overwatater?

Leaves. Curl down

Leaves. Color - Dark-brown

Setup. Strains - Photoperiod

10 months ago

3

3

Solved

Leaves Curling Up & Brown Spots The leaves started curling upwards, turned brown about 2mm at the top and a lot of small brown spots appeared on the leaves. I don't understand why or how... Im using BioBizz nutrients, little less than recommended. Watering every other day with 2L PH 6.3 20°C - 24°C

Leaves. Curl up

Leaves. Color - Dark-brown

10 months ago

1

2

Solved

Help What is the issue? do they need calmag or should i flush them? if i should flush them what ph should this water have?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

a year ago

5

5

Solved

Browning tips Hello everyone, I'm in 3rd week of flowering and I'm starting to stop browning tips on newer leaves. Any idea what it could be? Thanks!

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

a year ago

2

2

Solved

GanjaGartenZwerg

Braune Blätter in Blüte Pflanzen bekommen braune Blätter gedüngt wird mit BioBizz auf Erde die pflanzen standen leider ein paar Tage zu nass ich hoffe ich habe kein fusarium drinnen pflanzen sind schon seit drei Tagen nicht mehr gegossen worden und immer noch nass was kann ich ma

Leaves. Color - Dark-brown

a year ago

2

7

Solved

ObserverInterest

What is causing this Leaf discolouration overnight after a lot of tent work yesterday Spent a lot of time in the tent yesterday. Everything was fine and this morning there’s bad discolouration on the leaves of some plants. I did lower the plant (was way too high) so may beight burn - but it’s only on some plants I did make two mixes of water/nutes

Leaves. Color - Dark-brown

a year ago

4

2

Solved

Deficiency? Help me...Hey guys im having a problem with my gorilla cookies auto.it's 8 weeks from seed, growing in plagron pebbles, drip system, EC now 1.8, PH 6-6.5. light viparspectra xs1500 pro, height approx 30 cm. Nutrients - advanced nutrients

Leaves. Color - Dark-purple

Leaves. Color - Dark-brown

a year ago

1

2

Solved

Leafs with brown spots The leafs on my plant are showing brown spots. Could be nutrient burn or nutrient lockout? Not sure at this point. It started a week after blooming.

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

a year ago

6

2

Solved

Day 13 since flip. Spots on leaves.Going into week three flower. What are these?

Leaves. Color - Dark-brown

a year ago

2

Solved

Day 4, after emerging. Is this coloration on the cotyledons okay?Humidity is 55 - 70, temp is around 20-24c, 50w full spec led It's my first time, and i think i have been watering it too much I also fed it 2-0-0 npk water with 4ml per liter and I since learned it's not okay. Will it recover? Is this too little grow for day 4?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

a year ago

4

2

Solved

Tache cuivrés sur feuille.Je me demande si les tâches cuivrées sur les feuilles de ma plante de cannabis et d'autres plantes sont dues à une carence en calcium ou en phosphore/potassium. Les feuilles affectées sont généralement les grandes feuilles, souvent nourricières. Voir agenda. Je vous remercie 🙏🌱

Leaves. Color - Dark-brown

a year ago

5

3

Solved

Brown Red Round Spots on 4-5 Fanleaves / fungus ?Hey folks, I have this issue with one of my ladies. There are small reddish-brown spots on 4-5 fan leaves, while the other plants don’t have anything. What could this be? I think it’s a fungus, but I want to be sure and know exactly what it is before I start treating it.

Leaves. Color - Dark-brown

a year ago

4

2