Bothell, Washington
January 24, 2002

EDEN Bioscience Corporation (Nasdaq:EDEN), which develops, manufactures and markets innovative, natural products for improving crop production and protecting plants, today announced that
the California Department of Pesticide Regulation (DPR) has registered Messenger(R) for the sale and use on grapes and fruiting vegetables, such as tomatoes and peppers, for disease management.

Messenger was first registered in California last year for use on strawberries.

"We are pleased that California DPR's review of two years of field trial data has resulted in unconditional registration of Messenger for use on grapes and fruiting vegetables, another important step in our strategic focus," commented Brad Powell, interim President and Chief Financial Officer. "California is an important target market for us and we look forward to introducing our technology to
growers of these high value crops."

EDEN Bioscience is a plant technology company focused on developing, manufacturing and marketing innovative natural products for agriculture. EDEN believes its technology and initial product, Messenger, provides growers with a new tool to improve crop production and protection. Messenger, which received EPA approval for full commercial use in April 2000, is based on naturally occurring proteins called "harpins," which activate natural plant defense systems to protect against disease and pests, and simultaneously activate plant growth systems, improving crop yield and quality. It has been tested in hundreds of field trials in many countries and on more than 40 crops including: citrus, cotton, strawberries, tomatoes, peppers, melons, wheat, rice, corn, peanuts, tobacco, grapes and others. 

Always read and follow label instructions before buying or using this product.
Messenger(R), EDEN(R), and EDEN Bioscience(R) are registered trademarks of EDEN Bioscience Corp. Messenger is not currently registered for sale or use in Colorado. In California, Messenger is labeled for disease management in strawberries, grapes, and fruiting vegetables only.