Colorado Ag Department Phytosanitary Programs Protect Hemp Farmers
The Colorado Department of Agriculture’s (CDA) Phytosanitary, Seed and Nursery programs facilitate export of hemp seeds and clones/transplants across the U.S. and the world and offer important protections for farmers. These regulatory programs mandate truthful labeling and freedom from pests and diseases.

CDA is currently monitoring three pests occurring in Colorado that are causing concern for other states: Cannabis aphid (pictured above), European corn borer, and Japanese beetle. The European corn borer (ECB), a pest of grain and a wide variety of plants, was recently added to several state’s hemp quarantines.
Originally native to Europe, ECB was introduced to North America in the early 1900s and has spread westward to the Rocky Mountains. ECB is present in Eastern Colorado and along the Front Range. Several states west of the Rocky Mountains have quarantines against this insect, which has an affinity for hemp. Because of growing concern about ECB, extra care must be taken to keep the pest from moving from eastern Colorado to the Western Slope and to other states.
Shipping plant material, seeds and clones/transplants with proper inspection and phytosanitary certificates helps ensure the shipment will arrive successfully at its destination, and upholds the quality and reputation of Colorado’s industrial help industry. For more information about dried hemp flower shipments, and other pests, please contact CDA’s Phytosanitary Program at phyto@state.co.us.