Cannabis Infirmary

Learning how to grow cannabis can be tricky. Learn how to identify, diagnose, and fix common problems faced while growing marijuana plants.
Sticky Threads
Blaze
  • Sticky
Integrated Pest Management (ipm), Pesticide Use And Safety, & Managing Pesticide Resistance
Replies
19
Views
7K
1stonedman
1stonedman
We Solidarity
  • Sticky
Dudded, Stunted, and Runted plants...
48 49 50
Replies
981
Views
220K
BuffNuts
B
K
  • Sticky
i need suggestions on a good microscope
2 3 4
Replies
76
Views
35K
Aqwut
A
Seamaiden
  • Sticky
The Charts--Helpful charts for making nutrient deficiency diagnoses
13 14 15
Replies
293
Views
126K
smokedareefer
smokedareefer
Blue Dog
  • Sticky
Bulb Mites?? WTF!?
7 8 9
Replies
161
Views
72K
JKash
JKash
We Solidarity
  • Sticky
Root Aphids, Fungus Gnats, and other fun bugs (ID PICS)
22 23 24
Replies
471
Views
225K
Scolymia7
Scolymia7
silverhaze
  • Sticky
Welcome to the Fungal, it gets worse here everyday - Fusarium Solani
8 9 10
Replies
199
Views
74K
shaganja
shaganja
budboy299
  • Sticky
Forbid 4F timeline
2
Replies
22
Views
53K
Jmaes Mabley
Jmaes Mabley
Seamaiden
  • Sticky
Overuse of Eagle 20 and systemics makes resistant fungi
7 8 9
Replies
177
Views
66K
Judaz
Judaz
mace
  • Sticky
Read Me First
Replies
19
Views
16K
Xakmo
X
Normal Threads
F
Just wondering if anyone knows...
Replies
0
Views
63
Franco1961
F
J
What is up with these leafea
Replies
0
Views
52
johnbrown25
J
M
Hello! Problem With stranger things 🧐
Replies
4
Views
140
LoveGrowingIt
LoveGrowingIt
E
Leaves curling: is it light stress?
Replies
4
Views
153
Imzzaudae
Imzzaudae
N
Sick girl needs help please
Replies
13
Views
323
natedogg102790
N
P
Automatic Herma? lemonade auto paradise seeds 2 week flower
Replies
2
Views
75
pure.hemp
P
G
White Powder and Stripes? Very Worries
Replies
2
Views
117
Goldjkr
G
Monkeybigbuds
Start of Nute burn or something else 🧐
Replies
9
Views
233
Monkeybigbuds
Monkeybigbuds
S
Cause of my plant turning yellow
Replies
13
Views
383
Mothman
Mothman
Littlefoxton100
How would I defoliate this plant? It’s very short!
Replies
7
Views
306
Littlefoxton100
Littlefoxton100
leroygreen
Diagnosis week three to four
Replies
4
Views
185
leroygreen
leroygreen
J
Calcium deficiency vs Septoria? Or something else?
Replies
10
Views
314
Oldchucky
Oldchucky
N
DWC Hydro root rot? Thoughts?
Replies
14
Views
366
Bumslayer3700
Bumslayer3700
P
Wilted plant overnight, no clue
2
Replies
23
Views
543
Purfict
P
B
HELP!! MALE OR FEMALE wedding cake
Replies
7
Views
275
BearWater
BearWater
P
What are my leaves telling me?
Replies
1
Views
130
Eclipted
E
budsofgeorgia
light stress or just a stupid grower ?
2 3 4
Replies
76
Views
2K
budsofgeorgia
budsofgeorgia
TexasMade
Veg and Bloom light, which to use
Replies
4
Views
181
HerbalEdu
HerbalEdu
S
Leafes turning yellow where buds are forming
Replies
1
Views
119
Redneckx
Redneckx
G
How often and how much should I water my auto-flowers?
Replies
7
Views
322
Growth
G
SnappyJack
Well.. I'm stumped... Could Be This.. Or It Could Be That... What Do You Think ?
Replies
4
Views
269
420autoflier
420autoflier
F
Issues so close to the end.
Replies
8
Views
262
LoveGrowingIt
LoveGrowingIt
B
First time growing please help
Replies
5
Views
264
GNick55
GNick55
A
Spots and white stuff on leaves
Replies
0
Views
91
azbassist
A
Littlefoxton100
Diagnosis please? Anyone? Bueller..? Yellow and curling leaves!
Replies
10
Views
352
Littlefoxton100
Littlefoxton100
R
Burnt yellow tips - suggestions ?
Replies
2
Views
182
Captspaulding
Captspaulding
K
Help first time grower problem
Replies
13
Views
479
Captspaulding
Captspaulding
KeeperOfKeys
Leaning seedling and first feed
Replies
8
Views
352
KeeperOfKeys
KeeperOfKeys
C
Thought was deficiency but now not sure
Replies
7
Views
327
Captspaulding
Captspaulding
euphoriaup
Sick plant or lacking nutes?
Replies
5
Views
320
nomdeplume
nomdeplume
C
Weird leaf texture any ideas?
Replies
2
Views
176
Coppermike
C
B
Plz help. Wedding cake early stages. Outdoor. Does it slightly nitrogen deficient.
Replies
4
Views
233
BigBuzAnon
B
emanresu
I think this is magnesium deficiency.
Replies
7
Views
473
Captspaulding
Captspaulding
wobbleysausage
Molybdenum? Purpling leaves and strange colors.
Replies
6
Views
264
wobbleysausage
wobbleysausage
Rama777
Fucked up plant, not many theories..
Replies
17
Views
643
Rama777
Rama777
M
Yellow leaves on Purple Kush plants. Is this related to light, watering, or soil nutrients?
Replies
3
Views
179
Captspaulding
Captspaulding
K
Please help diagnose what deficiencies these ladies have...
2
Replies
23
Views
584
AZsunfarmer
AZsunfarmer
pulchripes
I think I have fucked the main cola
2
Replies
27
Views
2K
pulchripes
pulchripes
K
Is this sand safe for growing?
Replies
8
Views
354
KTG808
K
Cameron2231
Growing an angel? Maybe it’s evil? We’ll see.
Replies
5
Views
286
BloomBard
B
KeeperOfKeys
Is this seedling ok? (First grow)
Replies
10
Views
335
Gmix
Gmix
W
Help with getting stem to thicken to support more leaves
Replies
14
Views
496
emanresu
emanresu
ChuckFinnl3y
Should i start to be worried ?
Replies
15
Views
464
Imzzaudae
Imzzaudae
E
Leaf symptoms (Nutrient deficiency or TMV?)
2
Replies
20
Views
711
ElBorracho
E
7munkee
Sugar leaves always curl upwards
Replies
15
Views
482
7munkee
7munkee
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