Biological Fungicide Protects Potatoes

This article appeared in "Potato Country," May/June 2000.

Potato growers have a new tool to help them deal with a broad spectrum of potato diseases DENY(R) Biological Fungicide has been shown to reduce the incidence of several diseases in potato production. Data generated during the 1999 potato production season in Washington State are positive.

DENY is a biological fungicide containing a live bacterium. Applications of the product are made -- as soil drenches or as in-furrow applications at planting -- to direct-seeded crops. The bacteria in DENY colonize the roots of the plant, and use the exudates from the growing root as their nutrient sources.

Research and test results show that DENY can protect plant roots from a variety of soil-borne disease pathogens, including fusarium, rhizoctonia, pythium, and sclerotinia, the manufacturer says. In potato production, these pathogens are responsible for such diseases as seed piece rot, root rot, and stem canker, as well as foliar diseases.

Potato growers should apply DENY as an in-furrow application at planting over the seed piece. It is recommended that you use DENY in addition to the normal seed-piece treatment program. Using both treatments will increase the spectrum of disease control, and add to your bottom line with improved quality and yield.

DENY is registered as a pesticide with the Environmental Protection Agency for use on all crops. It has potential to reduce the use of some restricted-use pesticides on several crops.

For more information, contact your local supplier, or Market VI, L.L.C., 6613 Haskins, Shawnee, Kansas 66216, telephone (913) 268-7504.