Publications

Extension Publications

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  Cole Crops

  "Cole crops" is the general term used to describe broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, and kohlrabi. Learn about cole crop cultivars, planting, yields, care during the growing season, potential problems, and harvest and storage. Disponible en Español.

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  Commercial Asparagus Production

  Asparagus is a hardy perennial of the lily family. The plant originated in the coastal regions of Europe and Asia but is now grown throughout the world. It is one of the first vegetable crops to be available in the early spring, along with leafy greens. Once established, a well-cared for asparagus field can remain productive for 15 to 20 years.

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  Commercial Melon Production

  The melon family is comprised of muskmelon, watermelon, and honeydew melons, with all belonging to the cucurbitaceae family. This publication discusses commercial site selection, planting, cultivars, pollination, fertilization, irrigation, weed management and harvesting of melons.

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  Commercial Potato Production Guide

  Potatoes are the world's most important vegetable crop and have been grown in the United States since the early 1700s. This publication discusses the many different types of potato and their characteristics, recommended planting practices and fertilization. It also talks about pests and diseases that can harm the potato and what can be done to combat them.

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  Commercial Production of Pak Choi

  Pak choi is a cool-season vegetable that belongs to the cabbage and cauliflower family. It is also known as bok choi, or pak choy. It originated in China and has been cultivated for thousands of years. Pak choi has rapidly been gaining popularity in the Midwest due to its mild flavor, suitability as a stir fry vegetable, and wide acceptance among consumers. Many farmers markets, community supported agriculture vendors, and local grocery stores feature pak choi in produce boxes.

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  Common Diseases of Conifers in Iowa

  Color photos help you make the right diagnosis for nine diseases. Causal agents, typical host species, symptoms, and disease spread are discussed. Also learn proper maintenance and chemical controls to keep your evergreens healthy.

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  Common Problems of Ash Trees

  Many ash tree problems can be mistaken for emerald ash borer infestation. Before removal or needlessly treating with pesticides, use this diagnostic guide to distinguish emerald ash borer injury from other common problems of ash.

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  Common Rose Diseases

  Several rose diseases caused by fungus, virus, or bacterium are discussed. Disease-resistant varieties also are mentioned.