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Organic vegetable seed production continues to grow along with the demand for product, adding millions of dollars to Washington’s agricultural economy. Production of organic vegetable seeds is hindered by numerous pathogens. Because there is a lack of reliable organic control methods for bacterial black rot (caused by Xanthomonas campestris pv. campestris) on crucifers, a biologically […]

Sustainable methods of nitrogen (N) fertility and weed management in organic production systems remain a challenge. Composted animal manures are commonly used to supply N, but only a fraction is in immediately available forms with the remainder released slowly as a result of microbial driven processes. These amendments come at a high cost, and excess […]

In this analysis, we study the organic apple price response to crop size supplied to the market. We use the sales data from November 10, 2003 to September 8, 2005, organized by the Wenatchee Valley Traffic Association, the most complete dataset available for WA apples. The apples are from both Wenatchee and Yakima, and the […]

We are working directly with organic growers to help them make management decisions to minimize damage cause by the Carrot Rust fly larvae, based on monitor for Carrot Rust Fly adult using yellow-orange visual sticky traps. In addition, we are testing selected entomopathogenic nematodes to determine their effectiveness against the soil dwelling larval stage of […]

Farmers in Washington are looking to diversify crops to meet demand for organic, local and direct market production. Two crops that can meet these needs are icebox watermelons and winter-grown greens. Icebox watermelons tend to be earlier maturing than picnic watermelon varieties, and thus offer farmers throughout Washington a means of producing high quality watermelons […]