Which of the following is an example of host resistance?

• A. Increasing watering frequency
• B. Choosing pest-resistant crop varieties
• C. Applying chemical deterrents
• D. Using traps to eliminate pests

Answer: (B)

Choosing pest-resistant crop varieties is an excellent example of host resistance because it specifically focuses on utilizing plants that have been bred or genetically modified to withstand pest damage. These varieties can naturally deter pests or tolerate their presence without sustaining significant damage, thus minimizing the need for chemical interventions and reducing potential harm to the surrounding ecosystem.

This form of resistance is a fundamental aspect of integrated pest management because it emphasizes prevention rather than reaction. By selecting types of crops that inherently possess pest-resistant qualities, growers can promote a healthier crop yield while also contributing to sustainable agricultural practices. This approach is particularly beneficial as it can lead to lower pesticide usage, ultimately supporting both environmental health and economic viability for farmers.