Best Durian Farm Practices and Other Tips

Drainage Canals and Retention Canal

  • Remove excess water
  • Minimizes disease spread
  • Reduces surface water run-off
  • Reduces underground water
  • Let water penetrate the soil



  • Improves air circulationt thus decreasing relative humidity
  • Removing low lying branches will help prevent the disease (decreases splashing)

What to Prune?

  • Dead and diseased branches
  • Branches 1.5m from the ground
  • Water sprouts
  • Branches that come too near to each other
  • Branches within the canopy less than 2 cm in diameter
  • Always paint the pruned parts to avoid disease and pest entry point

Trunk Sanitation


  • Manual – Sanggot, Likong, etc.
  • Mechanical – Grass cutter, mower, etc.


  • Eliminates microclimate that induce phytopthora
  • Eliminates weeds that compete against the durian
  • Eliminates hiding place for durian thieves, giving you clear view of the while area

Balance Fertilization

Crop Removal

  • For every 1000 lbs of fruit harvested in durian, 1.4 lbs of nitrogen, 0.34 lb of phosphorous, 4 lbs of potassium, 0.30 lb of calcium, and 0.47 lb of magnesium removed.
  • If possible, do soil and tissue analysis at your farm to determine nutrient deficiencies at your area.

Fruit and Flower Thinning

What to thin?

  • Misshapen fruits
  • Borer laden fruits
  • Fruits found on weak branches
  • Fruit clustered from a single peduncle

Ideal number of fruits per tree depending on the age of the tree

  • Tree Age (Year) = Ideal no. of Fruits
  • 4 = 0-3
  • 5 = 5-15
  • 6 = 20-40

Proppping – to prevent breakage and damage of fruits and branches

Pest and Disease Control

Insect Pest

  • Fruit borer
  • Psyllids
  • Mealybugs
  • Durian hopper
  • Ambrosia beetle

Chemical Control of Insect Pests

  • Karate, Bida, Kriss, etc. (Lambdacyhalothrin)
  • Cypermithrin
  • Decis, Detour, Decide (Deltamethrin)

Phytopthora Disease


  • Mancozeb
  • Copper fungicides


  • Wider spacing
  • Proper pruning
  • Trunk sanitation
  • Restrict grazing animals
  • Proper disposal of infected parts
  • Use of tolerant/resistant cultivars
  • Fruit thinning
  • Adequate drainage canals
  • Adequate fertilization
  • Adequate irrigation



  • Hollow sound
  • Flexible spine
  • Distinct aroma
  • Distinct abscission layer
  • 95-120 days from flower drop, depending on the cultivar

Fencing and Security

  • Pilferage is one of the factors that contribute to loses in durian production.

author: Severino C. Belbiz, Dept. of Agriculture

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