character: Dr. Jonathan Green
topic: Integrated Pest Management Techniques
grade: 9
subject: Biology
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character: Rachel Carson
topic: Environmental Impact of Pesticides
grade: 9
subject: Biology
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character: Dr. John G. Ecker
topic: Chemical and Biological Control Methods
grade: 9
subject: Biology
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character: Dr. Mary McKenzie
topic: Sustainable Agriculture Practices
grade: 9
subject: Biology
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