Residents of Pelham may notice a low flying twin engine helicopter in the area of Hillcrest Park today.
Zimmer Air is spraying for gypsy moth and canker worms.
The pesticide is called Foray 48B, a naturally occurring thuringiensis, or soil borne bacteria, that is toxic to gypsy moths.
Gypsy moths are an invasive species native to Europe and Asia that was introduced to North America in the late 1860's. The moths defoliate trees.
The first application will be today - expect a second pass-by in about a week's time.
The spray program is in response to a resident concern.