Which practice can enhance crop resistance to pathogens?

Genetic resistance is a practice that enhances crop resistance to pathogens by utilizing plant breeding techniques to select and propagate varieties that possess inherent resistance traits. This approach involves identifying and incorporating specific genes that provide defenses against diseases caused by fungi, bacteria, viruses, and other pathogens. By using crops that are genetically resistant, farmers can reduce the likelihood of pathogen outbreaks, which leads to healthier plants, reduced reliance on chemical treatments, and improved overall yield. This method not only helps in managing disease but also contributes to sustainable agricultural practices, aligning with long-term crop health and productivity goals.

In contrast, increased pesticide use may provide temporary relief from pathogens but does not fundamentally alter the plant's ability to resist diseases, and it can lead to resistance in pathogens over time. Populating with non-native species can disrupt local ecosystems and potentially introduce new pathogens or pests that crops have not evolved defenses against. Heavy irrigation may provide water needed for growth but can create favorable conditions for certain pathogens by increasing humidity and promoting fungal growth. Thus, genetic resistance stands out as a proactive and effective strategy for enhancing crop resilience against pathogens.