How might insects develop a resistance to bt toxins what ecological risks would this have?

Insects can develop resistance to Bt (Bacillus thuringiensis) toxins through genetic mutations or by acquiring genes that confer resistance. This resistance may arise from selective pressure when Bt is used extensively in agriculture, allowing resistant individuals to survive and reproduce. The ecological risks include potential outbreaks of resistant pest populations, which could disrupt local ecosystems, harm non-target species, and lead to decreased agricultural yields. Additionally, reliance on Bt could diminish biodiversity and upset the balance of pest and predator dynamics in the environment.