What is a potential drawback of using synthetic pesticides?

One significant potential drawback of using synthetic pesticides is the risk of chemical resistance developing in pest populations. When a pesticide is used repeatedly, especially if it is applied at sub-lethal doses or without following proper resistance management strategies, pests can gradually develop immunity to the chemicals. This reduced susceptibility can lead to a situation where the pesticide becomes less effective over time, making pest management more challenging. As a result, this can necessitate the use of higher doses or new, potentially more harmful chemicals to achieve the same level of pest control, thereby exacerbating issues related to environmental impact and safety.

The development of resistance can also disrupt integrated pest management strategies that rely on a mix of biological and chemical controls. Understanding this drawback is essential for creating sustainable pest management practices that minimize reliance on synthetic pesticides, preserve their effectiveness, and reduce environmental harm.