New and revised publications from the University of Florida Insitute of Food and Agricultural Sciences
May 24th, 2013
Topic(s):Lawn & Garden
Adenium obesum and its many hybrids are often seen in retail garden centers. They have vibrant floral displays in shades of red, white, pink, and yellow. Flowers average 2–3 inches in diameter and may be single, double, or even triple. The plants must be stationed in high light, 6 hours or more per day, to maintain flowering during the summer. Adenium obesum makes a dramatic specimen for a deck or patio but should be moved indoors in winter. This 2-page fact sheet was written by R. J. Henny and J. Chen, and published by the UF Department of Environmental Horticulture, May 2013.
The Irish potato is a cool-season crop. A recently grown and harvested potato exhibits different flavor profiles from one that has been in storage or on a grocery shelf for an extended period. For example, in storage, the starches in potatoes convert to sugars, resulting in a less desirable texture and taste. “New” potato flavor can be achieved in the home garden by following a few growing recommendations. This 9-page fact sheet was written by Christian T. Christensen, Libby R. Rens, Jeffrey E. Pack, Lincoln Zotarelli, Chad Hutchinson, Wendy Dahl, Doug Gergela, and James M. White, and published by the UF Department of Horticultural Sciences, April 2013.
Biting midges can be a nuisance to campers, fishermen, hunters, hikers, gardeners, and others who spend time outdoors during early morning and evenings, and even during the daytime on cloudy days when winds are calm. They will readily bite humans; the bites are irritating, painful, and can cause long-lasting painful lesions for some people. A common observation upon experiencing a bite from this insect is that something is biting, but the person suffering can not see what it is. This 4-page fact sheet was written by C. Roxanne Connelly, and published by the UF Department of Entomology and Nematology, April 2013.
The Mexican lac scale is native to Mexico and Texas, but populations have been established in Florida. Adult female scales produce a high-domed ‘test’ or shell with four to six lobe-like projections that anchor the test to the plant surface. The test is hard and glossy with a reddish-orange tint around the edges, and darker toward the center. In some specimens, white string-like wax fiber extrusions project from the dorsum of the test, but these may break off. This 3-page fact sheet was written by Ian Stocks, and published by the UF Department of Entomology and Nematology, April 2013.
May 15th, 2013
Topic(s):Lawn & Garden
Plant-parasitic nematodes are among the least understood and most difficult pests to manage on turfgrass in Florida. They are very small, and most can only be seen with the aid of a microscope. They use a stylet to puncture plant cells, to inject digestive juices into them, and to ingest plant fluids. The most reliable way to determine whether plant-parasitic nematodes are involved in a turf problem is to have a nematode assay conducted by a professional nematode diagnostic lab. This 6-page fact sheet was written by William T. Crow, and published by the UF Department of Entomology and Nematology, April 2013.
The Tuttle mealybug, Brevennia rehi (Lindinger), is a pest of many grass species and occurs nearly worldwide, especially where rice and sugarcane are grown. Because Bermuda and zoysia are important lawn grasses, especially in the southern United States, infestation by Tuttle mealybug should be considered whenever dieback is noticed, especially if the grass blades show white wax or are sticky from honeydew secretion. Both Bermuda and zoysia lawns are commonly installed as sod or plugs, which provide a ready route for the spread of infestations should the pest control practices of the grower fail to maintain a pest-free production environment. This 3-page fact sheet was written by Ian Stocks, and published by the UF Department of Entomology and Nematology, April 2013.
May 3rd, 2013
Topic(s):Lawn & Garden
While a healthy lawn typically takes up and uses applied fertilizer for growth and protein production, nutrients may leach or run off into water bodies or groundwater when fertilizer is overapplied or applied to an unhealthy lawn. In an attempt to reduce this nonpoint source pollution, FDACS developed a rule to regulate the amount of N and P applied to lawns as fertilizer. The Urban Turf Fertilizer Rule regulates what can be sold and marketed as an urban turf fertilizer and requires specific wording on the fertilizer bag. This rule was enacted in response to concerns over potential pollution of water resources resulting from the nitrogen (N) and phosphorus (P) in these fertilizers. This 3-page fact sheet was written by Laurie E. Trenholm, and published by the UF Department of Environmental Horticulture, March 2013.
May 3rd, 2013
Topic(s):Lawn & Garden
Whiteflies are common pests on many ornamental plants. Some of the most economically important species in Florida are the silverleaf whitefly, fig or ficus whitefly, citrus whitefly, and the rugose spiraling whitefly. The most frequently attacked plants include allamanda, avocado, chinaberry, citrus, fig, fringe tree, gardenia, gumbo limbo, ligustrum, mango, various palms, persimmon, viburnum, and many annuals. This 4-page fact sheet was written by E. A. Buss, and published by the UF Department of Entomology and Nematology, March 2013.
North American bagworm can feed on over 50 families of deciduous and evergreen trees and shrubs. Severe infestations can damage the aesthetics and health of host plants, especially juniper and arborvitae species. Many of the preferred host plants do not grow well below the USDA hardiness zone 8A, but due to its wide host range, high female fecundity, and method of dispersal, bagworm can still be problematic in the Florida landscape. This 5-page fact sheet was written by Brooke L. Moffis and Steven P. Arthurs, and published by the UF Department of Entomology and Nematology, March 2013.
April 9th, 2013
Topic(s):Lawn & Garden
This 17-page fact sheet provides useful resources and handy tables for information on the function, form, and landscape use of proven native performers of the Florida Treasure Coast (Martin, St. Lucie, and Indian River Counties). Written by Sandra B. Wilson, Judith A. Gersony, Keona L. Nolan, Janice C. Broda, and Edward A. Skvarch, Jr., and published by the UF Department of Environmental Horticulture, March 2013.
Community gardens are pieces of land where groups of people grow and maintain vegetable and flower plants. They exist in all types of areas, including neighborhoods, at schools, or on other public or private lands. Community gardens grow food for local consumption or sale and can also be used for teaching gardening and other skills This 7-page fact sheet provides a guide to individuals or groups interested in starting urban community gardens and includes information about how to identify garden sites, build partnerships, engage community members, and develop a project overview. Written by Austen Moore, Amy Harder, and Norma Samuel, and published by the UF Department of Agricultural Education and Communication, March 2013.
Hay muchos insectos benéficos pero solamente hay algunos que son enemigos naturales de plagas. Los enemigos naturales más comunes de encontrar son: mariquitas/tortolitas, crisopas, antocóridos (Orius), ligaéidos, sírfidos, avispas de agallas, hormigas, avispas parasíticas, moscas parasíticas y ácaros depredadores. La importancia relativa varía de acuerdo con cada insecto plaga, el hábitat y la estación o época del año. This 7-page fact sheet was written by Hugh A. Smith y John L. Capinera, traducido por Ana Lucrecia MacVean, and published by the UF Department of Entomology and Nematology, January 2013.
Air Potato Leaf Beetle (Suggested Common Name), Lilioceris cheni Gressitt and Kimoto (Insecta: Coleoptera: Chrysomelidae: Criocerinae) (EENY547/IN972)
This leaf feeding beetle was recently introduced into Florida from China for biological control of air potato. This 4-page fact sheet provides information on the distribution, appearance, life cycle, host range and importance of the beetle. Written by Entomology and Nematology, and published by the UF Department of Rodrigo Diaz, William A. Overholt, and Ken Hibbard, January 2013.
Calonectria is a fungus that affects a large number of hosts worldwide, including timber and ornamental, agricultural, and horticultural crops, causing a wide range of disease symptoms, such as cutting rot, damping-off of seedlings, leaf spot, shoot blight, and root rot. This 4-page fact sheet was written by Jiaming Yu and Monica L. Elliott, and published by the UF Department of Plant Pathology, January 2013.
February 8th, 2013
Topic(s):Lawn & Garden
Palms are often thought of as symbols of the tropics, but fortunately there are a number of palm species that grow in warm, temperate climates, such as that of Central Florida. This 8-page fact sheet was written by Timothy K. Broschat and James E. Davis, and published by the UF Department of Environmental Horticulture, January 2013.
Puss Caterpillar (Larva), Southern Flannel Moth (Adult), Megalopyge opercularis (J. E. Smith 1797) (Insecta: Lepidoptera: Zygaenoidea: Megalopygidae) (EENY545/IN976)
The southern flannel moth is an attractive small moth that is best-known because of its larva, the puss caterpillar, which is one of the most venomous caterpillars in the United States. This 12-page fact sheet was written by Donald W. Hall, and published by the UF Department of Entomology and Nematology, January 2013.
Amaryllis Lesion Nematode, Pratylenchus hippeastri Inserra et al., 2006 (Nematoda: Tylenchida: Pratylenchidae) (EENY546/IN975)
Amaryllis lesion nematode is an important nematode pest of amaryllis in Florida. It reduces plant vigor, flower yield, and bulb size. As the nematodes tunnel through the root, the damaged cells die and collapse, forming lesions on the exterior and the interior of the root tissue. This 4-page fact sheet was written by William T. Crow, and published by the UF Department of Entomology and Nematology, January 2013.
Design and Implementation of Edible Plant Demonstration Gardens: A Case Study of the Putnam County Extension Edible Garden (ENH1205/EP466)
Demonstration gardens are a collection of plants assembled and organized in a manner that allows garden visitors to access and study them. Most gardens are designed with a particular focus and include plants that support the purpose and educational theme of the garden. This case study features an edible plant demonstration garden that was designed and installed in Hastings, Florida, on the Extension office grounds. The UF/IFAS program and the Partnership for Water, Agriculture, and Community Sustainability (FPWACS) designed and implemented the demonstration garden using a step-by-step process that is discussed in this 15-page fact sheet written by Gail Hansen, Joseph Sewards, Rebecca Almeida, and Andrew Dunn, and published by the UF Department of Environmental Horticulture, November 2012.
Tropical sod webworm Herpetogramma phaeopteralis Guenee (Insecta: Lepidoptera: Crambidae) (EENY541/IN968)
Tropical sod webworm larvae are destructive pests of warm season turfgrasses in the southeastern U.S., especially on newly established sod, lawns, athletic fields, and golf courses. Larval feeding damage reduces turfgrass aesthetics, vigor, photosynthesis and density. The first sign of damage is often caused by differences in grass height in areas where larvae are feeding. This 5-page fact sheet was written by Nastaran Tofangsazie, Steven P. Arthurs, and Ronald Cherry, and published by the UF Department of Entomology and Nematology, November 2012.
Many of us try to attract particular types of wildlife to our yards so that we can observe them. We often select plants and other materials that we know provide food, cover, and water for those animals we like to watch. However, when unwanted wildlife visit your yard and cause damage, you might need to consider the use of tactics that could deter these unwanted species. This 8-page fact sheet was written by Holly K. Ober and Arlo Kane, and published by the UF Department of Wildlife Ecology and Conservation, October 2012.
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