How are pesticides the cause of colony collapse disorder?

Pesticides, particularly neonicotinoids, have been linked to colony collapse disorder (CCD) in honeybee populations by impairing their foraging behavior, navigation, and immune function. These chemicals can disrupt the bees' ability to communicate and find food, leading to reduced hive productivity and increased vulnerability to diseases. Additionally, pesticide exposure can weaken colonies, making them more susceptible to stressors like parasites and environmental changes, ultimately contributing to their decline.