What are the six broad methods of plant disease control or pest management?

The correct answer highlights a comprehensive approach to managing plant diseases and pests through various methods. Exclusion refers to preventing pests and diseases from entering an area, which is crucial for protecting healthy plants from potential threats. Eradication involves eliminating existing pests or diseases, ensuring that the problem is resolved at its source. Therapy can encompass any treatment that helps manage an existing infestation or disease, such as the application of chemicals or biological agents.

The mention of resistant varieties emphasizes the importance of using plants bred or genetically modified to withstand specific pests and diseases, reducing reliance on chemical controls. The term escape is also relevant; it refers to planting strategies that allow certain crops to grow in conditions that minimize pest or disease pressure. Finally, protection encompasses ongoing strategies to safeguard healthy plants through cultural practices, chemical applications, or biological control agents.

These components work together effectively to provide a robust framework for integrated pest management in forestry and agriculture, focusing on sustainability and reduction of chemical reliance.