Guide for Diagnosing Plant Problems

shenagen

Well-Known Member
I came across this neat little list that can probably help a lot of people out. If you like it check my post in the General area...I need some help!

Quick Deficiency Guide

Nitrogen: Entire plant is light green in color; lower leaves are yellow; growth is stunted....

Phosphorous: Entire plant is bluish-green, often developing a red or purpleish cast; lower leaves may be yellow, drying to a greenish-brown to black color; growth may be stunted...

Potassium: Leaves have a papery appearance; dead areas along the edges of leaves; growth is stunted...

Magnesium: Lower leaves turn yellow along the tips and margin and between the veins; the lower leaves wilt...

Calcium: Young stems and new leaves die...

Zinc: Leaf tissue between the veins is lighter in color; yellowed; papery in appearance...

Iron: Leaf tissue appears yellow, while the veins remain green...

Copper: Leaf edges appear dark green or blue; leaf edges curl upward; young leaves permanently wilt...

Sulfur: Young leaves turn pale green, while the older leaves remain green; plant is stunted and spindly...

Mananese: Growth is stunted; lower leaves have a checkered pattern of yellow and green...

Molybdenum: Leaves are stunted, pale green, and malformed...

Boron: Young leaves are scorched at tips and margins...
 

shenagen

Well-Known Member
OK here is a start of some links........
THE MARIJUANA GROWER'S GUIDE..........by Mel Frank & Ed Rosenthal
This is some of Ed Rosenthals book...good read

International Cannagraphic Magazine Forums - The Complete guide to Sick Plants,pH, and Pest troubles!
One of the better sick plant guides I've come across

Cannabis Nutrient and Deficiency Table

https://www.rollitup.org/general-marijuana-growing/1469-marijuana-plant-problems-cures.html
This one is definately in the wrong area...I was on this site for over a month before I used it.

http://www.ganjaguerrilla.net/index.htm

I'll update this list as I find more usefull info
 
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johnnyquest

Active Member
Cool post the other link to the cannagraphic forums is good stuff too. Anyone know how much epsom salt should I use for foliar feeding?
edit: my bad stupid question.
 

shenagen

Well-Known Member
I haven't done clones yet, just seed, but I'm pretty sure you should give them 1/2 strength base nutrients.
 
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