🧩 IPDM Implementation and Case Studies

IPDM succeeds only when field observation, thresholds, and interventions are connected in the right sequence. This lesson translates the idea of integration into an actual implementation workflow and shows how crop-wise packages are built.

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Framework for IPDM Implementation

An IPDM programme normally follows a practical sequence:

1. surveillance and field scouting
2. correct identification of pest, disease, and beneficial organisms
3. severity assessment
4. comparison with threshold or action level
5. choice of compatible management tactics
6. evaluation of results

This framework is important because many control failures happen not from lack of chemicals, but from late diagnosis or poor decision timing.

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Role of Economic Thresholds

Threshold-based action is central to IPDM. The purpose of ETL is to avoid unnecessary intervention when the pest or disease level is still below the point of economic damage.

Crop	Pest or disease	Indicative ETL from source
Rice	Stem borer	5% dead hearts or 2% white ears
Rice	Blast	5% leaf area affected
Cotton	Bollworm	1 larva per plant or 10% damage
Wheat	Rust	20% severity on flag leaf
Chickpea	Pod borer	1 larva per meter row
Tomato	Fruit borer	5% fruit damage

ETL is the action point; it is not the same as total crop loss threshold.

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Crop-Based Implementation Logic

The original lesson gives case-style examples from rice, cotton, and mango. The teaching pattern is clear:

• begin with resistant variety or clean planting material
• reduce early inoculum or pest carry-over
• monitor during vulnerable crop stages
• integrate biological and cultural tactics first
• use chemical intervention only when the situation justifies it

Rice example

• resistant variety
• seed treatment
• spacing and neem cake
• scouting for blast, BLB, and insect pests
• targeted spray only when threshold is crossed

Cotton example

• resistant or Bt background
• refuge compliance
• trap crops and pheromone traps
• biocontrol use
• need-based spray rotation

Orchard example

• pruning and sanitation
• protection of flowering and fruiting stages
• trap-based or stage-based management
• post-harvest sanitation

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Implementation Beyond the Farm

IPDM is not only a farmer-level decision. It also depends on training, surveillance networks, and extension support.

The source notes mention:

• Central Integrated Pest Management Centres
• farmer field schools
• demonstrations
• biocontrol production and extension programmes

This matters because implementation quality improves when farmers understand pest ecology instead of following blind spray advice.

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Summary Cheat Sheet

Stage	Key action
Surveillance	Observe and record pest/disease status regularly
Identification	Confirm the actual target before acting
Thresholding	Compare severity with ETL
Intervention	Combine cultural, biological, and chemical methods
Evaluation	Review yield, cost, and spray reduction outcome

References

2 sources • [1] [2]

[1]

Directorate of Plant Protection, Quarantine and Storage - IPM resources

Official

[2]

ICAR integrated pest and disease management extension materials

Official