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Crop Care

Maize Leaves Turning Yellow: What to Check First

Check old leaves, young leaves, water stress, and soil before assuming disease.

5 min lessonBetter PracticeFree costBest for: maize farmersUpdated 9 Jul 2026

Do this first

Start with these checks

Older yellow leaves can suggest nutrient stress.
Waterlogging can yellow maize.
Compare several plants before acting.

Action Steps

Do it in order

1

Check if yellowing starts from bottom leaves

2

Check for waterlogged patches

3

Look for stunting

4

Compare affected rows with healthy rows

What you need or check

  • Look at older leaves, new growth, soil moisture, field drainage, and whether fertilizer or manure was applied

How to do it

  1. Check if yellowing starts from bottom leaves.
  2. Check for waterlogged patches.
  3. Look for stunting.
  4. Compare affected rows with healthy rows.

Common mistake

Do not assume every yellow leaf is disease. Do not apply fertilizer before heavy rain or when soil is very dry.

Done when

Check whether yellowing is mostly on old leaves or the whole plant.

Ask Mama G

Need a next step?

Ask Mama G with the maize stage, leaf position, soil moisture, and recent fertilizer history.

Ask Mama G
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Why this matters

Check old leaves, young leaves, water stress, and soil before assuming disease.

Extra tip

Use this skill to improve soil care, crop checks, harvest handling, and everyday farm decisions.