PPFS-OR-H-1: Managing Diseases of Herbaceous Ornamentals

Jay Hettmansperger, Nicole Ward Gauthier | May. 1, 2017 (New)

Herbaceous landscape ornamentals can succumb to various adverse factors, including infectious and non-infectious diseases. Infectious diseases are caused by microorganisms, such as fungi, fungus-like water molds, bacteria, nematodes, viruses, and phytoplasmas. Abiotic or non-infectious diseases may be attributed to unfavorable growing conditions, which can include nutritional deficiencies, improper soil pH, extreme temperatures, excessive soil moisture, or drought. In order to determine the proper course of action for treatment, it is essential to accurately identify the specific cause(s).

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CCD-CP-11: Juneberries

Matthew Ernst, Cheryl Kaiser | Apr. 19, 2017 (Minor Revision)

Juneberry (Amelanchier spp.), also known as serviceberry, is a small multiple-stemmed tree or shrub that bears edible fruit. This genus includes saskatoons (Amelanchier alnifolia), which are grown commercially for fruit production in Canada and the North Central U.S. Unfortunately, saskatoons are not considered winter hardy in Kentucky
and have serious leaf spot problems in this region. Most other species of Amelanchier are cultivated for use in landscape plantings; however, several of these ornamental cultivars show potential for fruit production. Among these are the Allegheny serviceberry (A. laevis) and hybrids (Amelanchier x grandiflora), which are hardy and have good leaf spot resistance in Kentucky

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CCD-SP-5: Container Nursery Production

Matthew Ernst, Cheryl Kaiser | Apr. 17, 2017 (Minor Revision)

The container nursery business involves the production and marketing of ornamental trees and shrubs, fruit trees, and perennial flowers grown in aboveground containers. This production method has helped revolutionize the nursery business in the last few decades. Some of the advantages of container production include: less acreage required for production, handling convenience, and a nearly year-round harvest and planting season.

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CCD-SP-6: Field Nursery Production

Matthew Ernst, Cheryl Kaiser | Apr. 17, 2017 (Minor Revision)

Field nurseries are the traditional method of producing and marketing ornamental trees, shrubs, fruit trees, and perennial flowers. Until the mid 1900s nearly all nursery crops were produced in the field. Even with the advent of aboveground container and pot-in-pot production, field nurseries are still widely used. Some of the advantages of field production over other production methods include: less maintenance and labor requirements during the growing period, ability of plants to overwinter in the field without additional protective measures, and lower start-up costs. In Kentucky, most field-grown trees and shrubs are sold as balled-and-burlapped (B&B), meaning that the soil surrounding the plant's root system is dug with the plant and wrapped in burlap.

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CCD-CP-85: Baby Corn

Matthew Ernst, Cheryl Kaiser | Apr. 12, 2017 (Minor Revision)

Baby corn (Zea mays) is a popular Asian vegetable that can be consumed cooked or raw due to its sweet and succulent taste. Many people presume the tiny ears come from dwarf corn plants. In fact, baby corn is the immature ear of fully grown standard cultivars; ears are harvested two or three days after silk emergence, but prior to fertilization.

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CCD-CP-107: Onions

Matthew Ernst, Cheryl Kaiser | Apr. 12, 2017 (Major Revision)

Onions (Allium cepa) are a cool-season biennial crop typically grown as an annual. Dry bulb onions are harvested after the leaves have died back and the bulbs have fully matured. Green bunching onions are harvested while the leaves are still green and before the bulbs have developed. The terms 'scallion' and 'spring onion' are sometimes incorrectly used interchangeably for green onions. Scallions are onions that completely lack bulb formation, while spring onions have bulbs somewhat more developed than green onions.

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CCD-CP-86: Baby Vegetables

Matthew Ernst, Cheryl Kaiser | Apr. 12, 2017 (Minor Revision)

Baby (petite, miniature, mini) vegetables are smaller versions of full-sized produce. Many baby vegetables are simply standard cultivars that are harvested at an immature stage (e.g. baby corn), while others are cultivars that have been genetically developed to produce miniature vegetables (e.g. cherry tomatoes). Smaller vegetables produced from secondary buds after the initial full-sized crop has been harvested can also be sold as baby vegetables (e.g. broccoli).

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PPA-30: Sampling for the Tall Fescue Endophyte in Pasture or Hay Stands

Ray Smith, Tina Tillery, Paul Vincelli | Apr. 10, 2017 (Minor Revision)

Most of the tall fescue growing in Kentucky is colonized by the tall fescue endophyte, a fungus which causes disorders in livestock that feed on the infected grass. The animal disease syndrome is called fescue toxicosis, which some researchers estimate may cost Kentucky producers over $200 million yearly. This problem can be greatly reduced by identifying the infected fields and replacing them with endophyte-free or novel endophyte tall fescue varieties or by managing them in a way to minimize the impact of the endophyte on herd productivity. One of the simplest ways to reduce toxicity symptoms in cattle is add red and white clover to existing tall fescue stands.

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CCD-CP-124: Tomatillo

Matthew Ernst, Cheryl Kaiser | Mar. 1, 2017 (Minor Revision)

Tomatillo (Physalis ixocarp) is a small edible fruit in the Solanaceae family. A tan to straw-colored calyx covers the fruit like a husk, giving rise to the common name of "husk tomato." Native to Mexico and Guatemala, these tomato-like fruits are a key ingredient in a number of Latin American recipes, including salsa and chili sauces. Tomatillo may have potential as a specialty crop in some areas of Kentucky.

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PPFS-AG-C-4: Stewart's Wilt of Corn

Carl Bradley, Kelsey Mehl, Emily Pfeufer | Jan. 1, 2017 (New)

Historically, Stewart's wilt of corn has resulted in losses for corn producers. Although this disease still occurs occasionally, it has become less prevalent in recent years in Kentucky and surrounding states. Stewart's wilt has been known by other names, such as bacterial leaf blight, Stewart's leaf blight, and maize bacteriosis.