New inspections aim to stop Diamondback Moth from spreading to Arizona crops

YUMA, Ariz. (KYMA) - Arizona farmers are facing a growing threat from the diamondback moth, a destructive pest that can damage broccoli, cabbage, cauliflower and other brassica crops across the state.

The Arizona Department of Agriculture has implemented mandatory inspection requirements for transplants entering Arizona as officials work to prevent infestations from spreading to local fields.

The pest has been detected as a concern in Yuma, Maricopa and La Paz Counties. Its larvae can chew irregular holes into plant leaves, tunnel into crop heads and stunt plant growth, potentially reducing both crop quality and marketable yields.

Agricultural officials say out-of-state transplants can serve as a pathway for the pest to enter Arizona.

Under Administrative Order 2603, transplants must be inspected by California authorities within 24 hours before leaving the state.

Once the plants arrive in Arizona, growers must immediately notify the Arizona Department of Agriculture to arrange a second inspection.

Where growers are located determines which state office they should contact. Producers in Yuma County and southern La Paz County should work with the Yuma County Office for their required arrival inspections.

Growers in Maricopa County and northern La Paz County are directed to contact the department's Phoenix office.

Officials say following the new inspection requirements is critical to preventing the diamondback moth from becoming established in Arizona’s agricultural fields.

The goal is to protect the state's brassica crops, which include vegetables such as broccoli, cabbage and cauliflower, and help limit the economic impact of the pest on Arizona growers.

Farmers and growers can find additional information about Administrative Order 26-03 and inspection requirements here.