3.4 Timing and density of inoculation

1. Seasonal Considerations

  • Best during active growth season (spring to early summer)
    • Trees have higher sap flow → better distribution of inoculants
  • Avoid dormant or stress periods (dry season, heavy rain, or frost)
    • Stress can reduce resin response or harm the tree

Farmer Tip: Trees respond faster when actively growing and healthy.

2. Tree Age

  • Recommended age: ≥5–7 years
  • Younger trees may not respond efficiently
  • Older trees may require careful inoculation to prevent damage

3. Time After Pre-Treatment

  • If using AgarStart™ as pre-treatment:
    • Apply biotic or dual inoculants 2–4 weeks after AgarStart™
  • This allows the tree to prime its defense system

Density of Inoculation

1. Number of Inoculation Points

  • Depends on tree size / DBH:Trunk DBHNumber of Points10–15 cm3–5 points16–25 cm5–8 points26–35 cm8–12 points>35 cm12–16 points
  • Use even spacing around trunk
  • Avoid clustering points to prevent localized stress

2. Depth and Volume

  • Depth: 2–5 cm into xylem (depending on tree size)
  • Volume per point: Small, controlled amounts (e.g., 5–15 mL)
  • Too shallow → low resin response
  • Too deep / too much → tissue damage, tree stress

3. Frequency

  • Typically one inoculation per season for single-use inoculants
  • Dual systems may allow repeat application after 3–6 months
  • Avoid over-inoculation → reduces survival and resin quality

4. Distribution Pattern

  • Evenly distributed around circumference of trunk
  • Avoid top-heavy or bottom-heavy placement
  • Maintain safe distance from main roots and structural defects

Farmer Reminder

“Right time + right spacing = higher resin yield, healthier trees.”

Optional Quick Guide

Example:

  • Tree: 20 cm DBH, healthy canopy, active growth
  • Inoculation: 6 points evenly around trunk
  • Depth: 3 cm, 10 mL each point
  • Timing: Early spring, 2 weeks after AgarStart™
  • Follow-up: Monitor resin formation monthly