Trouble Shooting Health Problems
Health
Use this chart to help you determine the possible causes for
whatever strange problem you seem to be having. Don't forget that your problem
may not necessarily be a lack of any particular nutrient, the issue is often
availability. High pH can prevent plants from absorbing vital nutrients. Extreme
humidity may cause leaves to remain tissue paper thin. Take small steps in your
attempts to balance your nutrient solution. It is better to under-feed your
plants than to overdose them. Try adding about half of a recommended
concentration as you experiment. You can always add more later.
|
Symtoms |
Suspected
Element |
|
N |
P |
K |
Mg |
Fe |
Cu |
Zn |
B |
Mo |
Mn |
Over
Fertilization |
|
Yellowing of: |
|
|
Young leaves |
|
|
|
|
|
|
|
|
|
|
|
|
Middle leaves |
|
|
|
|
|
|
|
|
|
|
|
|
Older leaves |
|
|
|
|
|
|
|
|
|
|
|
|
Between veins |
|
|
|
|
|
|
|
|
|
|
|
|
Old leaves drop |
|
|
|
|
|
|
|
|
|
|
|
|
Leaves curl over |
|
|
|
|
|
|
|
|
|
|
|
|
Leaves curl under |
|
|
|
|
|
|
|
|
|
|
|
|
Tips Burn: |
|
|
Young leaves |
|
|
|
|
|
|
|
|
|
|
|
|
Older leaves |
|
|
|
|
|
|
|
|
|
|
|
|
Young leaves
wrinkle/curl |
|
|
|
|
|
|
|
|
|
|
|
|
Necrosis |
|
|
|
|
|
|
|
|
|
|
|
|
Growth Stunted |
|
|
|
|
|
|
|
|
|
|
|
|
Dark/purple color |
|
|
|
|
|
|
|
|
|
|
|
|
Pale color |
|
|
|
|
|
|
|
|
|
|
|
|
Mottling |
|
|
|
|
|
|
|
|
|
|
|
|
Spindly |
|
|
|
|
|
|
|
|
|
|
|
|
Soft stems |
|
|
|
|
|
|
|
|
|
|
|
|
Hard/brittle stems |
|
|
|
|
|
|
|
|
|
|
|
|
Tips die |
|
|
|
|
|
|
|
|
|
|
|
|
Bad roots |
|
|
|
|
|
|
|
|
|
|
|
|
Wilting |
|
|
|
|
|
|
|
|
|
|
|
|
Cannabis Health Problems
|
