Why weed and wild plants are not affected by insects and pests?

Weed and wild plants often possess natural defenses that make them less appealing or accessible to insects and pests. These defenses can include tough leaves, toxic compounds, or strong scents that deter herbivores. Additionally, many wild plants have evolved alongside pests, developing resilience through natural selection. This co-evolution allows them to thrive in diverse environments where cultivated plants may struggle.