Hello guys! Sorry if this problem was already discussed. Gelato auto in soil, 5 weeks from the seed, just starting to bloom. Some plants showed yellowing of the fan leaves with some dry brown spots on them. I looked at problem posters, but still not sure. Please advise! Cheers!
Identify leaf problem
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@jfrost Welcome to AFN. Please provide as much information as you can and the information will be reviewed and some good opinions will be tendered.
Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)
-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..
--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!
✂ - - - - - - - - - - -
(copy and paste)-->
Problem:
Medium/grow method:
Feed: and supplements used:
water source:
Strain/age:
light used:
Climate:
Additional info:
Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)
-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..
--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!
✂ - - - - - - - - - - -
(copy and paste)-->
Problem:
Medium/grow method:
Feed: and supplements used:
water source:
Strain/age:
light used:
Climate:
Additional info:
Problem: brown dry patches on lower fan leaves, yellowing and unhealthy looking leaves
Medium/grow method: soil/peat mix
Feed: and supplements used: plagron grow and bloom, + green sensation stimulator, 400-450 ppm, 6-6.5 ph, feeding every other day manually.
water source: filtered tap water + distilled water, own ppm 70-150.
Strain/age: gelato auto, 5 weeks from seed, blooming just started
light used: hps 600w, 20/4h, distance to tops 50+ cm (hope you dont mind metric?
))
Climate: indoor, temp 21-29C, humidity 40-70 (70 just for a night period).
Additional info: plants seem to be ok overall, but this local problem appeared yesterday
I will be able to post the whole plant photo tomorrow when im on site.
Medium/grow method: soil/peat mix
Feed: and supplements used: plagron grow and bloom, + green sensation stimulator, 400-450 ppm, 6-6.5 ph, feeding every other day manually.
water source: filtered tap water + distilled water, own ppm 70-150.
Strain/age: gelato auto, 5 weeks from seed, blooming just started
light used: hps 600w, 20/4h, distance to tops 50+ cm (hope you dont mind metric?
))Climate: indoor, temp 21-29C, humidity 40-70 (70 just for a night period).
Additional info: plants seem to be ok overall, but this local problem appeared yesterday
I will be able to post the whole plant photo tomorrow when im on site.
Last edited:
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She looks a bit long-term starved,.... maybe no enough food going in; what's the dosage been like?
Symptoms looks like a combo of things, but N and P defc. stand out most...
Another thing to check is in-pot pH, but you'll need the right tool for that,... if it's off enough, most likely acidic, it will lockout certain nutes...
Let see about your feeds first, then see is a flush is called for since I doubt you have a good soil pH probe handy! The Accurate 8 is a good, less $$ unit... avoid the cheap skinny probes, they suck!
Symptoms looks like a combo of things, but N and P defc. stand out most...
Another thing to check is in-pot pH, but you'll need the right tool for that,... if it's off enough, most likely acidic, it will lockout certain nutes...
Let see about your feeds first, then see is a flush is called for since I doubt you have a good soil pH probe handy! The Accurate 8 is a good, less $$ unit... avoid the cheap skinny probes, they suck!
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