Weeds, Ditches, Mosquitoes

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Read the Weed and Ditch Maintenance policy - PDF file

Citywide Integrated Pest Management plan - herbicide and pesticide use

Landscape hotline:  928-203-5101 

Mosquitoes and mosquito-borne illness:  Download a one-page PDF document on environmental management of West Nile virus and Zika virus.

Invasive plants

Buffelgrass. Native to Africa, this species was introduced into the U.S. in the 1930s as livestock forage and for erosion control. Over the years it has proliferated and become common in Arizona. Buffelgrass prefers sandy soils and arid climates. If allowed to grow unchecked, it can rapidly cover large areas resulting in suppression of desirable plants and can creates a potential grass fire hazard.

Although though Sedona is on the northern boundary of the Buffelgrass range and above the desired elevation, isolated areas of Buffelgrass plants have been found within the city limits. Small areas are easy to control with spot treatments of Roundup and/or manually removing, bagging, and disposing of individual plants. 

Get more information at and watch a buffelgrass fire video at

Onion weed. This is another species native to Africa and the Mediterranean/Western European regions that has recently spread to Australia and North America. It is not a true onion but the leaves are very similar in appearance. Onion Weed does not invade well-established lawns but is an issue in newly disturbed construction areas or roadside right-of-ways. If allowed to prosper it produces large amounts of seeds and can out compete desirable plant species.

The city has worked with the USDA Animal and Plant Health Protection Service to identify and control infestations. Manual removal of individual plants and/or applications of Roundup herbicide are the preferred methods of control.

For questions or to report concerns regarding sightings of any invasive species contact Pete Garcia, Maintenance Supervisor, 928-203-5063.