Learn CABI's pest diagnosis methodology, used by Plant Doctors worldwide.

The Crop Pest Diagnosis programme and certifications will help you to diagnose pests and diseases in crops.

This programme is freely available to people in 30 countries. Please see the full list of open access countries for details. If you are in one of those countries, you can click through into any of the modules.

If you live outside of our free countries, you may be able to gain access through your institution or employer.

Course image Crop Pest Diagnosis 0: Welcome
Crop Pest Diagnosis Programme v3.0
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Study hours: 0.2
Type: Self-study

Introduction to the programme, outlining skills to be gained, useful resources and how to access help.

Course image Crop Pest Diagnosis 1: Symptoms
Crop Pest Diagnosis Programme v3.0
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Study hours: 3
Type: Self-study

An outline of symptoms commonly found on a range of host plants.

Course image Crop Pest Diagnosis 2: Insects and Mites
Crop Pest Diagnosis Programme v3.0
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Study hours: 3.5
Type: Self-study

Information and practice activities on the damage caused to plant health by common groups of pest insects and mites.

Course image Crop Pest Diagnosis 3: Causes
Crop Pest Diagnosis Programme v3.0
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Study hours: 4
Type: Self-study

A detailed breakdown of symptoms found on host plants caused by pathogens and insects.

Course image Crop Pest Diagnosis 4: Nutrient Deficiencies
Crop Pest Diagnosis Programme v3.0
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Study hours: 2.5
Type: Self-study

Examples and information about common plant symptoms caused by nutrient deficiencies.

Course image Crop Pest Diagnosis 5: Practising Diagnostics
Crop Pest Diagnosis Programme v3.0
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Study hours: 2
Type: Self-study

Put your understanding of common symptoms into practice to diagnose a set of real life symptoms in a set of exercises.

Course image Crop Pest Diagnosis: Certifications
Crop Pest Diagnosis Programme v3.0
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Type: Self-study

Multiple choice questions based on content covered in the Crop Pest Diagnosis programme of courses. Offered at Foundation and Practitioner level.