Divisi
Little leaf
· Bacterial
Photo: Amityadav8 · CC BY-SA 4.0
Little leaf is a phytoplasma disease — caused by a wall-less bacterium that lives inside the plant's sap tubes (the phloem, the pipes that carry food) — and is carried plant-to-plant by leafhoppers, small jumping insects. It attacks brinjal (eggplant) and potato. It jams the plant's growth signals so instead of normal leaves the plant throws out crowds of tiny pale leaves and a mass of thin shoots, turning bushy, stunted and barren. There is no cure once a plant is infected.
J RAJA PLANT PATHOLOGIST · CC BY-SA 4.0 
SaimonPankaj · CC BY-SA 4.0
Why it matters
Little leaf can wipe out up to 70% of your crop — the sick plants turn into useless bushes of tiny leaves that set little or no fruit, so a badly hit field earns almost nothing. The hardest part is that once a plant catches it, there is no medicine that can cure it — no spray, no fertiliser will bring it back. Every day an infected plant stands in the field, leafhoppers feed on it and carry the disease to healthy plants next to it. So the whole fight is about keeping it out and pulling out sick plants fast — not treating them.
When to act
plants showing clusters of small leaves or excessive shoots, or leafhoppers active; rogue affected plants promptly
This guidance is general, compiled from published agronomic references including FAO and CABI. Thresholds and timing shift with your crop, your variety and the season.
In much of the region a spray is simply called mushonga — medicine. But a chemical group you cannot name is one you cannot rotate, and a product you did not write down has no pre-harvest interval you can observe. Mushonga, and other farming words →
The full little leaf field guide
- Identify it
- Scout for it
- Control it
17 field-guide sections in the app
The full guide to little leaf — every symptom to check, how and when to walk your field looking for it, and the controls that actually work, ranked. Built into your crop plan, so you are told to look before it costs you a harvest.
Crops it affects
Frequently asked questions
How do I identify little leaf?
The first thing you notice is a plant that looks wrong-sized: instead of normal broad leaves it grows crowds of tiny, narrow, pale leaves — often smaller than your thumbnail — packed close together.
When should I take action against little leaf?
plants showing clusters of small leaves or excessive shoots, or leafhoppers active; rogue affected plants promptly
How do I control little leaf?
Prevent first — start clean (cultural): plant only healthy planting material from a trusted source, and never re-grow (ratoon) or take cuttings/seed potatoes from an infected crop — you would just carry the disease into the new field.
Which crops does little leaf affect?
Among the crops covered here: Eggplant.
Catch it before it costs you a harvest
Divisi builds scouting into your crop plan — it tells you when to walk your field, what to look for at that stage, and what to do when you find it. Free for farmers, works offline.
Check what grows on your farm