Iron and manganese
Iron deficiency early signs
new leaves pale yellow while veins remain greener, affecting fresh growth first
Iron mid stage
yellowing intensifies, leaves can become thin or twisted and growth slows
Iron late stage
new leaves turn almost white, necrotic spotting may appear and new growth becomes severely stunted
Manganese deficiency early signs
small yellow spots between veins with a mottled look in new growth
Manganese mid stage
spotting grows, leaves may distort and interveinal chlorosis spreads
Manganese late stage
necrotic spotting, downward edge curl and badly distorted new growth
Zinc and sulfur
Zinc deficiency early signs
small new leaves, slight yellowing between veins and shortened internodes
Zinc mid stage
leaves narrow and deform, interveinal yellowing increases and growth is stunted
Zinc late stage
severe interveinal yellowing, brittle twisted leaves and rosette-like stunting
Sulfur deficiency early signs
young leaves show uniform light green color and yellowing starts at new growth
Sulfur mid stage
yellowing spreads upward, leaves become pale yellow and growth slows
Sulfur late stage
leaves turn very pale yellow, stems thin and weaken and overall growth becomes slow
Poster workflow
Observe the pattern.
Test before guessing.
Correct the cause rather than only reacting to the leaf color.