Which of the following is a method used for insect control?

Host resistance is a fundamental method for insect control that involves the use of plant varieties that are genetically predisposed to resist insect pests. This strategy takes advantage of the natural defenses that certain plants have, which can deter or repel insect infestations, reducing the need for chemical pesticides. By deploying resistant plant varieties, farmers and gardeners can promote healthier crops that are less vulnerable to damage from specific insects.

This method is advantageous because it is often environmentally friendly and sustainable. It decreases reliance on chemical control measures, which can have adverse effects on non-target organisms and the ecosystem as a whole. Host resistance allows for more integrated pest management practices, providing a longer-term solution to pest problems without disrupting the soil, water, or surrounding fauna.

In contrast, other methods such as atmospheric control, genetic modification, and thermal treatment have their own roles in pest management but may come with more complexities or specific conditions for effectiveness. While these methods are valuable, host resistance stands out as a straightforward, nature-based approach to combatting insect pests.