The emerald dash border is an insect that causes damage to ash trees pesticides can use to kill the emerald ash borer and protect the trees, however, not using the pesticide properly can most likely result in

harmful effects on other organisms in the environment. Additionally, overreliance on pesticides can lead to the development of pesticide-resistant strains of the emerald ash borer, rendering the pesticides ineffective in the long run.

There are also non-chemical methods of controlling the emerald ash borer, such as introducing natural predators or using trap trees to capture and remove the insects. It is important to carefully assess the situation and choose the most appropriate and environmentally friendly method of control to protect ash trees from the emerald ash borer.