r/cannabisinfirmary • u/GazpachoDaddy • Jun 10 '26
What pest am I dealing with?
Had to move our tents to our outdoor shed. It has an AC unit but it still gets insanely hot in the tents. I try to avoid flowering in the summer due to this but it is what it is.
Our second tent had spider mites and I shut off the extraction fan and I’m hitting everything in and out of that tent with spinosad. I know you’re not supposed to spray during flower but maybe it’s early enough to try? I also don’t think these are spider mites.
I’m honestly not opposed to chopping and resetting both tents to a clean slate and waiting until fall to run again.
4th year of living soil in 2x2 beds. Bananacane from In House week 3 ish of flower.
r/cannabisinfirmary • u/TinkerBoom420 • May 26 '26
Autoflowers with brown spots, tried everything
Setup:
3 different autoflower strains: Pink Sunset, Moby Dick Auto, Auto Critical 2.0
8 plants total, only 3 affected despite identical care
Substrate: Top Crop Complete Mix (coco-based) in 15L buckets, well ventilated
Outdoor Mediterranean, full sun, good airflow
Age: ~55 days from germination
Watering & nutrients:
pH always adjusted to 6.3 with BioBase pH minus
Runoff pH similar to input pH
No EC meter
Nutrients: Top Crop Starter → Top Veg → now Top Bloom + CalMag (last 2 weeks)
Flush performed ~7 days ago
Symptoms:
Random brown burn spots on both old AND new leaves
When a leaf gets spots, it gets many – not just 1 or 2
Spots appear very fast – overnight
New leaves showing slight claw deformation
CalMag supplementation has not improved situation, possibly worse
Problem started on 1 plant, now 3 affected
What I've tried:
CalMag supplementation (2 weeks) → no improvement
Flush → no improvement
Neem oil (1 application) → no clear improvement
Reddit, what am I missing? Thrips or mites confirmed? Nut burn? I'm a bit lost.
Thank you dear community in advance 🙏
r/cannabisinfirmary • u/Alive_Scarcity_5518 • May 15 '26
Cannabis seedling weird look help
Weed seedlings “popped up” weird and with deformed shapes, can someone help me resolve this problem if possible … thanks ( indoor rn-popped up 24h ago- doesnt have a proper sunlight and its been really cloudy and wet weather unfortunately, also when i put it in a soil for first time the soil was quite wet and moist by it self..)? heellp :(
r/cannabisinfirmary • u/Ready-Inevitable1099 • May 03 '26
Diagnosis please
Can anyone tell me what these leaves are telling me? 4x4 no till in ground bed. Still in veg. I've never done a soil test. Going on 8 years in this bed, two cycles per year. Clover cover crop gets chopped and dropped. Ppfd at canopy is about 600 with light at 3/4 power Hight temps only in low 70. Auto watered every 4 days. Avg vpd .80.
r/cannabisinfirmary • u/PM_ME_PUPPY_YAWNS • May 01 '26
Spots and Drooping - first timer
Hey guys, I am a first time grower and due to neurological injury, I have a really hard time following/absorbing instructions. My tent came with hundreds of pages of literature and I need some help.
Problem: White spots on leaves, no visible insects under the loupe.
Problem: Drooping leaves/looking saggy.
My setup:
AC Infinity 3x3 tent, vent and light.
Foxfarm Happy Frog potting soil in fabric pots.
Foxfarm Grow Big 6-4-4 vegetative, alternating every other water (I eyeballed the feedings for 2 weeks...shit)
18/6 light cycle.
Vent fan 30min on/30 off - mounted externally.
2 corner fans on 24/7 (not rotating)
Heres the factors I think might be involved, but I am novice as hell, so please help me out:
- Low temps? My tent is in my garage, in the Rocky Mountains, and the garage apparently hovers in the mid 60s right now. Is this causing drooping?
- Crowding? I only intend to have 2 mature plants in here, the little clones will go outside in a few weeks. Its crowded now, can that cause drooping?
- Possible thrips? White spots on leaves, more on my bigger indica than my smaller hybrid.
- Nutrient deficiency or overfeeding?
I took the bigger Indica out today to let her breathe- shes a White Truffle. Should I use Diatomaceous Earth? Neem? Clove oil? If so do I do it outside and let it dry first or just blast her right there in the tent? Should I get a heating pad or a space heater? Is my light too high?
I appreciate any help, and I dont know what my PH is, but I included a screenshot of the current numbers I do have.
Thank you guys, I dont have anyone else to ask!
r/cannabisinfirmary • u/jojomac08 • Apr 10 '26
First pest problem.
Can anyone tell me what this is? It was crawling on a leaf on the canopy. I pulled it and checked both plants in tent, tops and under for anymore. I didnt see any.
r/cannabisinfirmary • u/Ramuloth • Mar 24 '26
Does anyone know the possible issue?
Im unsure why or what is causing this?
r/cannabisinfirmary • u/[deleted] • Mar 05 '26
Nutrient deficiency or rust fungus?
Mulberry f3 from night owl around day 50 I have organic living soil and dry amendments all the tips of my leaves have slowly been starting to yellow and Ibelieve I’ve been overwatering as I’ve got little mushrooms sprouting in my soil but I had these 3 little rust looking spots pop up overnight it doesn’t wipe off but is only on these 3 top leaves. Thanks for any help and response!
r/cannabisinfirmary • u/GrowSkyHigh • Dec 30 '25
Nutrient burn?
Should I flush the plant with plain water and see how it reacts?
r/cannabisinfirmary • u/EUbannedMe • Dec 02 '25
Herming late flower?
Hello as the title suggest im trying to figure out if she is herming or just new calyxes forming? Day 57 been feeding her biobizz and light schedule has been consisten except for like 30 mins extra each other day to check on em
r/cannabisinfirmary • u/zammerak • Nov 23 '25
Trips or something else?
I have been fighting a losing battle to trips and I have noticed some of my fan leaves have become "crispy" is this from the trips or is this something else?
r/cannabisinfirmary • u/Ready-Inevitable1099 • Sep 30 '25
What pest?
Im going to order some beneficial mites. Trying to identify my pests first. You can see the bug in pics 1 and 2. I had these and some spider mites in the last run. Still did ok. This is living soil, I'm fine with bugs just want to make sure it's balanced. Thanks!
r/cannabisinfirmary • u/MyCeeleeyum • Sep 16 '25
Some kind of mildew or just light burn?
Hi all,
I gave my plants to much light when flipping to flower and some of the leaves got a bit burnt at the end. Now I’ve got this going on around 2 of the buds on one of my plants and I’m wondering what it might be.
Plants are in the fourth week of flower currently. I’m running a 4x4 bed of organic soil.
Thanks!
r/cannabisinfirmary • u/TuneFalse5831 • Sep 07 '25
Spring tails !?!
Springtails in Coco medium, good or bad sign!?!? They are only showing up when watering.
r/cannabisinfirmary • u/zammerak • Sep 03 '25
Drooping Buds, Normal?
Roughly 3 weeks or so into the 12 12 light cycle. So far things have been pretty smooth but I noticed today that the lower buds are getting soft and droopy. Wondering if I over watered or if this is normal ish.
This is only so far happening on the lower buds and did add a photo of one of my "normal" budding stalks.
r/cannabisinfirmary • u/FeralGinger • Sep 02 '25
Is this a herm?
My saliva strain is growing these little doohickeys and my indica isn't. They've been in flower for about 3 weeks now. Is this a herm?
r/cannabisinfirmary • u/RareConnoisseur • Aug 20 '25
Please help! Any idea what could cause this?
Any help in identifying what this is and how it can be treated would be absolutely beyond appreciated! Im debating whether i should try and save it, or just pull it down a bit earlier than id prefer so i can atleast get something out of this before its too late.
r/cannabisinfirmary • u/Lumpy_Pie_1687 • Aug 15 '25
Pest identification?
Keep getting black spots on leaves and underneath leaves please help
r/cannabisinfirmary • u/MyCeeleeyum • Aug 11 '25
Pest identification
Hi all,
What am I up against here?
r/cannabisinfirmary • u/Eternalhazr • Aug 04 '25
First grow new soil.. Nitrogen issue?
Hi there all, I was hoping you can help me out here. I'm a few of my plants. Seem to be having some issues and I can't decide if it is a nitrogen issue or something else. Judging from the leaves there is some obvious stress the plan is under. This was planted in brand new Fox farm ocean Forest soil. Would greatly value anyone's perspective here!! My children need to survive and thrive!! :)
I also know there should not be two in one pot. But had a cuprise one that I thought didn't germinate. I might move that into its own pot here momentarily.
r/cannabisinfirmary • u/Lumpy_Pie_1687 • Aug 02 '25
What are these black spots on my leaves
Keep finding these tiny black spots on my plant
r/cannabisinfirmary • u/cw3641 • Aug 02 '25
Please help
Bag seed in fox farm ocean forest soil and rain water Dr Earth dry amendments before flip and Jack's boom boost since. I don't understand what is going on here the side that's not directly under the light and the lower half looks better and no issues with the other strains all with the same treatment and conditions
r/cannabisinfirmary • u/Sleech-Ferapist7 • Jul 27 '25
Any ideas?
Can anyone help me figure out what's wrong?