What's New
What's New
New posts
New media
New media comments
New profile posts
Latest activity
Members
Members
Registered members
Current visitors
New profile posts
Search profile posts
Sponsors
Sponsors
Sponsor Discounts
Sponsor Intros
420 Sponsor Guidelines
LED Sponsor Guidelines
Log in
Register
What's new
Search
Search
Everywhere
Threads
This forum
Search titles only
By:
420 News
International Cannabis News
Medical Marijuana News
Industrial Hemp News
Website News & Updates
420 Events
420 Forums
Forum Guidelines
Introduce Yourself
New Posts
Your Threads
Threads with your posts
Unanswered Threads
Watched Threads
Watched Forums
Search Forums
Mark Forums Read
420 Guidelines FAQ's
Science
Cannabis Facts
Medical Marijuana Facts
Industrial Hemp Facts
MMJ Scientific Data
Concentrated Cannabis Oil
Cultivation Scientific Data
Medical
Healing Properties of Medical Cannabis
Medical Marijuana Facts
Medical Marijuana Treatment
MMJ Methods of Use
Concentrated Cannabis Oil
MMJ Cannabis Edibles
420 Store
Activism
Mission Statement
Cannabis Warriors
Celebrity Tokers
420 Girls
420 Bands
420 Activist Corner
Fallen Warriors
420 Legal Action
Drug Testing
Petitions & Initiatives
Grow
How To Grow Marijuana
Grow Journals
Seeds, Clones & Strains
Frequently Asked Questions
Growers Forums
Grow Lighting
Grower's Lounge
Cannabis Concentrates
Problems, Pests & Disease Control
Plant & Bud Photos
420 Reviews
420 Strain Reviews
420 Product Reviews
Grow Supply Product Reviews
Entertainment
420 Contests - Win Free Stuff
Gallery - Cannabis Pictures
420 Calendar
Plant & Bud Photos
Random 420 Photos
420 TV - Marijuana Videos
Gallery
Photo Gallery/Media Guide
Add media
New media
New comments
Search media
420 News
International Cannabis News
Medical Marijuana News
Industrial Hemp News
Website News & Updates
420 Events
420 Forums
Forum Guidelines
Introduce Yourself
New posts
Unanswered threads
Search forums
Forum Guidelines FAQ's
Science
Cannabis Facts
Medical Marijuana Facts
Industrial Hemp Facts
MMJ Scientific Data
Concentrated Cannabis Oil
Cultivation Scientific Data
Medical
Healing Properties of Medical Cannabis
Medical Marijuana Facts
Medical Marijuana Treatment
MMJ Methods Of Use
Concentrated Cannabis Oil
MMJ Cannabis Edibles
420 Store
Activism
Mission Statement
Cannabis Warriors
Celebrity Tokers
420 Girls
420 Bands
420 Activist Corner
Fallen Warriors
420 Legal Action
Drug Testing
Petitions & Initiatives
Grow
How To Grow Marijuana
Grow Journals
Seeds, Clones & Strains
Frequently Asked Questions
Growers Forums
Grow Lighting
Grower's Lounge
Cannabis Concentrates
Problems, Pests & Disease Control
Plant & Bud Photos
420 Reviews
420 Strain Reviews
420 Product Reviews
Grow Supply Product Reviews
Entertainment
420 Contests - Win Free Stuff
Gallery - Cannabis Pictures
420 Calendar
Plant & Bud Photos
Random 420 Photos
420 TV - Marijuana Videos
Gallery
Photo Gallery/Media Guide
Add media
New media
New comments
Search media
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Members
Registered members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Everywhere
Threads
This forum
Search titles only
By:
Forum Guidelines
Introduce Yourself
New posts
Unanswered threads
Search forums
Forum Guidelines FAQ's
Menu
420 Sponsors
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Checkout 420 Magazine Sponsor Discounts, Discussions, Contests & Giveaways!
420 Forums
THE GROW ROOM
Frequently Asked Questions
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Problems, Pests & Disease Control
Post thread
Grow Support for Your Sick Plants
1
2
3
…
Go to page
Go
540
Next
1 of 540
Go to page
Go
Next
Last
Filters
Show only:
Loading…
Title
Sticky
Nutrient Problems, pH & Plant Issues: A Visual Guide
Teddy Edwards
Jun 15, 2022
Replies
1
Views
369
Jun 15, 2022
Phytoplankton
P
Sticky
Sierra Natural Science SNS-217 Best for Spider Mites
420
Sep 30, 2010
2
3
Replies
45
Views
33K
Dec 11, 2021
Sorb
S
Sticky
Sierra Natural Science SNS-244 Best for Powder Mold
420
Sep 30, 2010
2
Replies
34
Views
33K
Jul 22, 2020
Mbunaaddict
Sticky
My Experience Using Sierra Natural Science Spider Mite Spray
The Butcher
Apr 18, 2010
2
3
4
Replies
72
Views
43K
Oct 20, 2018
AJSpencer
A
Locked
Sticky
Photo Gallery Guide - How to Resize, Upload & Post Photos
420
Nov 14, 2008
Replies
4
Views
15K
Jul 19, 2018
Teddy Edwards
Locked
Sticky
How to Ask for Grow Support
420
Oct 18, 2008
Replies
0
Views
19K
Oct 18, 2008
420
Locked
Sticky
Cannabis Plant and Pest Problem Solver - Pictorial
420
Sep 15, 2008
Replies
0
Views
946K
Sep 15, 2008
420
N
Little black spots just starting: Is this normal? If not how do I cure?
Neffmau5
Tuesday at 2:09 PM
Replies
10
Views
190
Today at 4:41 AM
Pbass
Is something eating her?
Canachris
Monday at 4:10 PM
Replies
9
Views
159
Yesterday at 6:50 PM
Canachris
S
Problem, what's wrong with my plant?
Simomas
Tuesday at 7:02 AM
2
Replies
33
Views
356
Yesterday at 5:01 PM
Phytoplankton
P
G
Need help
greentelescop
Sunday at 1:30 PM
2
Replies
31
Views
382
Yesterday at 3:28 PM
Zephyrs
Newbie Grower needs help with some kind of blight
el gringuito
Apr 7, 2022
24
25
26
27
28
29
Replies
567
Views
16K
Yesterday at 3:01 PM
el gringuito
Y
Drying and curling leaves
Yann1211
Jun 7, 2022
Replies
18
Views
194
Yesterday at 12:40 PM
SmokingWings
C
About 2 and a half weeks after I germinated and my bottom leaves starting too yellow
Chhase1664
Tuesday at 10:36 PM
Replies
2
Views
58
Yesterday at 12:26 PM
SmokingWings
N
Spidermite
Newgrower2022
Sunday at 3:35 PM
Replies
15
Views
202
Yesterday at 12:20 PM
SmokingWings
Leaf Problem - Help Identifying
diabolito
Monday at 7:18 PM
Replies
2
Views
68
Tuesday at 11:13 AM
diabolito
Rust leading to yellowing
Poezebeest
Jun 21, 2022
2
3
4
Replies
64
Views
1K
Tuesday at 10:07 AM
Emilya
Half yellow leaf?
Clu3s
Jan 30, 2017
Replies
12
Views
5K
Tuesday at 6:03 AM
Bill284
T
Don't know if this is nutrient burn or what
Tjhh1995
Sunday at 6:33 PM
Replies
3
Views
104
Tuesday at 12:40 AM
Tjhh1995
T
K
Preflowers producing new leaf growth instead of pistils/pollen sacks
kaboom82
Aug 14, 2019
2
Replies
22
Views
3K
Monday at 11:30 AM
exactchange
E
W
Brown & white spots & curled crispy leaves
Whippedcream79
Jun 23, 2022
2
3
Replies
46
Views
657
Monday at 7:03 AM
ReservoirDog
Help
yanni420
Friday at 2:37 PM
Replies
5
Views
75
Saturday at 5:32 AM
Doctor Trevor
Pest control through addition of Jumping Spiders?
Zimbo 63
Jun 23, 2022
Replies
3
Views
78
Friday at 4:16 AM
SmokingWings
Help, please: what am I doing wrong?
Barberbarian
Jun 21, 2022
Replies
12
Views
134
Jun 23, 2022
Bill284
Zebra Spiders
grow boy420
Feb 13, 2021
Replies
5
Views
250
Jun 23, 2022
SmokingWings
Daddy long-legs spider to control gnants
HB Rob
Oct 2, 2010
Replies
12
Views
6K
Jun 23, 2022
SmokingWings
N
Leaf problem
Newgrower2022
Jun 5, 2022
Replies
5
Views
169
Jun 22, 2022
Newgrower2022
N
1
2
3
…
Go to page
Go
540
Next
1 of 540
Go to page
Go
Next
Last
420 Forums
THE GROW ROOM
Frequently Asked Questions
Top
Bottom