tags: - core-doctrine - agronomy-tool-link

Monitoring & Thresholds Hub

Monitoring converts ecology into decisions.

Without monitoring, IPM becomes reactive. With structured monitoring, IPM becomes predictive.

1️⃣ Monitoring Layers

Monitoring must occur across three layers:

A. Environmental Monitoring

Temperature (mean, max, degree-days)
Relative humidity
Leaf wetness
Soil/substrate moisture
Light & photoperiod

See: Environmental Drivers Hub

B. Pest Detection Monitoring

Sticky traps
Leaf inspections
Flower inspections
Root inspections
Soil sampling
Hotspot mapping

See: Pest Pressure Hub

C. Beneficial Activity Monitoring

Predator presence
Parasitism rates
Predator:pest ratios
Dispersal success

See: Biocontrol Strategy Hub

2️⃣ Threshold Concepts

Thresholds are not fixed numbers. They depend on:

Crop type
Growth stage
Market tolerance
Beneficial population
Environmental conditions
Programme stage (establishment vs suppression)

See: Establishment Vs Suppression

3️⃣ Types of Thresholds

Economic Threshold

Damage justifies cost of intervention.

Biological Threshold

Predators cannot suppress fast enough.

Aesthetic Threshold

Market standards drive tolerance.

Preventative Threshold

Action taken before visible damage to avoid cascade failure.

4️⃣ Decision Flow

Environmental shift
→ Pest acceleration
→ Monitoring detects increase
→ Compare with threshold
→ Check beneficial status
→ Decide: Hold / Top-up / Corrective action

See: - Ipm System Architecture - Population Dynamics — Predator–Prey Lag - Intervention Decision Logic — Act Or Hold

5️⃣ Common Failure Points

Monitoring too infrequent
Ignoring environmental acceleration
Acting on fear rather than trend
Resetting predator populations unnecessarily
Not adjusting thresholds by crop stage

See: Reset Effects — Why Programmes Collapse

6️⃣ Future Agrinomy Integration

This layer will support:

Risk alerts
Pest acceleration models (temperature-driven)
Predator lag modelling
Automated threshold prompts
Dashboard decision support

Monitoring is the hinge between knowledge and action.

Practical Tools

Ipm Field Scouting Sheet — Risk Index
Spider Mite — Scoring Cheat Sheet

These templates convert doctrine into field implementation.

Thrips — Scoring Cheat Sheet