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Ginger leaf spot

Small water soaked spots on the leaves grow into yellowish then brown spots with white centers that run together.

Phyllosticta zingiberi Fungus Fact sheet
Ginger plants, whose leaves leaf spot marks with pale, dark edged spots
Photo: ritirene, CC BY, via iNaturalist

Crops it strikes

What you see

Spots or streaks

When to act

In the rainy months check the leaves every week. Start spraying when small oval spots with pale centers and yellow halos show on many plants, before they join into dry patches.

What to spray

Active ingredients only, never brands. The FRAC group tells how it works: switch to a different group next time, so the disease does not learn to survive it. Spray only when the damage is worth the cost, and only with products registered with the Fertilizer and Pesticide Authority for your crop. Follow the label. The Shopee and Lazada links only show who sells something with that active ingredient, not a recommendation of any seller or product.

How to prevent it

  • Plant healthy seed rhizomes from fields free of leaf spot.
  • Space the rows and mulch the beds so rain does not splash spores onto the lower leaves.
  • Pick off and burn spotted leaves early, and clear old leaves after harvest.
  • Rotate away from ginger and turmeric for two to three years.
  • Feed the crop with balanced fertilizer and enough potash.

Where this comes from

Not sure it is this one?

Many diseases look alike. Send a photo to Anee, the smart farm technician in anee.io. She reads it with your crop, its age and the weather, and tells you what it most likely is and what to do first. In Tagalog or English.

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