Vote Now 🏆 for the Grow Awards 2025!
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
Spots on leaves
Maggie_de_Blockstarted grow question 4 years ago
Anyone know what's causing this? Slight discoloration and rust spots, mainly on older leaves. It's not that bad but quite spread out. did spray with neem oil recently, so is it just burn spots or a nutrient problem?
likes
Hashyanswered grow question 4 years ago
I there iv not used your range of nutrient for a while, have you got the right ratios of nitrogen phosphorus potassium Calcium and magnesium. Check out a feed schedule for your product and make sure your giving enough Calcium ànd magnesium. If a max dose is 2ml/L you shouldn't need to go above that.
Similar Grow Questions
Solved
Milly808
Leafs getting brown color..what happened?Need help for this issueLeaves. Color - Dark-brown
5 years ago
3
2
Solved
TheWeedPimp
Help brown spots on leafsHey Got a problem
The plant is beginning to get brown spots on the leafWeek 6
Leaves. Color - Dark-brown
5 years ago
1
2
Solved
5Lucky_Fingerz
Plant dieing whyI don't no what's going on... I tried flushing... Push the lights back further.... And gave them cal mag nothing fix the problem... Any suggestionsLeaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Wilting
5 years ago
2
2
Solved
SmylinPupil
Brown yellow leaves?Can anyone help me? I had this issue with my last early Miss and thought it was a cal mag deficiency. I tried to adjust it last time during flower but it didn’t help. I really only notice it on one of them so far but I would like to fix the problem sooner than later.5 years ago
1
2
Solved
TheUk420Show
what do you guys think this is ?Hi Guys Sorry to keep bothering you all but please see the pics the leaves are curling downwards and going this colour. temps are high at the moment but seems like an overfeed to me. Curruntly flushing with just 5.8 water for 5 days then will re introduce feed.Week 12
Leaves. Color - Dark-brown
5 years ago
1
7
Solved
Debutant_dream23
Excès d'azoteJ'ai un excès d'azote en fin de floraison sa fait une 1 semaine que je rince à l'eau claire et m'a planté reste toujour au vert foncé qui peux m'aider merciLeaves. Color - Dark-brown
5 years ago
3
3
Solved
Alfasirius
Leaves colorHi everyone! I want to know why the leaves look. Ph 5.8, 50 humidity, 23 celcius. I feed every 2 days at 1.2 ec. Someone knows?Leaves. Color - Yellow
Leaves. Color - Dark-brown
5 years ago
1
1
Solved
Skylife
Brown dots on leafsJust checked on my girls, and noticed this slight brown mark on 2 leafs... what is this?Leaves. Color - Dark-brown
Other. General questions
5 years ago
4
Solved
Wildgrass
Leaves turning yellow with brown patchesI noticed the first real leaves on one of my plants turning yellow in FFOF. I transplanted them into bigger pots with ProMix M in hope that it would stop. Condition seems to continue worsening. I have started to notice the cotyledons on some of the plants turning yellow.5 years ago
2
2
Solved
Mosherd7
Rusty spots mid-top of plants. A couple on each plant. Thoughts?(Check diary for more details)
Thinking calcium deficiency, also maybe magnesium deficiency on a few low yellowed leaves. Thinking it could be nutrient lockout? Feeding them 6.25 pH always. Gonna try 7.0 once and 6.5 for awhile. Thoughts anyone? Im still fairly new and learningWeek 10
Leaves. Color - Dark-brown
5 years ago
4
4
Solved
Mosherd7
Unknown rust on 7th flowering weekThis started as what I thought was a cal/mag deficiency, bought some, gave it for a week at a good dose and 6.3ph, and this intensified and switched from just lower leaves to the upper and a few sugar leaves on one plant. Any ideas? May calmag takes awhile? Or wrong diagnosis?Leaves. Color - Dark-brown
Feeding. Deficiences
5 years ago
1
3
Solved
burnoutdev
Light green patches on many leavesHey, few days before I noticed light green patches on leaves and now it's visible on more leaves. I noticed it only on large leaves now.
What can be a cause of this?
Also, I underwatered plant these days and maybe this can be a cause?Leaves. Color - Dark-brown
Leaves. Other
5 years ago
2
2
Solved
Coconut_kiss
Discoloration and brown tipsNutrient burn or something else?Leaves. Color - Dark-brown
5 years ago
1
4
Solved
Complicate
Is this turning purple from temp changeSo it looks like what I thought was a brown spot (under the grow light), appears to be purple when I pulled it out to get a better look and stake it down. I did switch the light to something cooler, could this be from temp dropping. Not worried yet, just curious. Thanks5 years ago
1
1
Solved
Terp_Djiny
Nutrients?Could anybody tell me what Kind of nutrient she need? Or whats her Problem?Week 19
Leaves. Color - Dark-brown
5 years ago
2
1
