Pestalotiopsis leaf fall
Round brown spots with a pale yellow ring appear on mature leaves, then the leaves yellow and drop until the canopy is thin and latex output falls.
Crops it strikes
What you see
When to act
From the start of the wet season, check the canopy of 10 trees per hectare every month for round brown spots with a pale yellow ring and early leaf drop. A spray pays mainly in nurseries and young plantings. In tall trees, feeding and tapping rest come first.
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
- Feed the trees well, with enough potassium and magnesium, so they refoliate quickly after leaf fall.
- Rest or ease tapping on trees with thin canopies until they recover.
- Rake and burn or bury fallen leaves in nurseries and young plantings.
- Note which clones hold their leaves in your area, and favor them when you replant.
- Keep weeds down and rows open, so the canopy dries after rain.
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.