New and revised publications from the University of Florida Insitute of Food and Agricultural Sciences
Citrus peelminer Marmara gulosa Guillèn and Davis (Insecta: Lepidoptera: Gracillariidae) (EENY415/IN985)
The citrus peelminer is a dark-gray moth with mottled white and brown markings and about 4 mm in length. This moth is considered native in the United States, attacking willow. It is believed that a host-shift occurred to multiple non-native plants including all varieties of citrus and cerain ornamentals, such as oleander. Citrus peelminer has been reported to occur in low numbers in Florida and at least three Marmara species have been identified in the state. Recent evaluations of an experimental pheromone lure that is still under development by researchers at the University of California, Riverside have confirmed captures of citrus peelminer (Marmara sp.) in Polk County, Florida. This 3-page fact sheet was written by Lukasz L. Stelinski, and published by the UF Department of Entomology and Nematology, April 2013.
This document is a two-page illustrated identification sheet for citrus canker symptoms that appear in citrus nurseries. Written by Timothy D. Riley, Megan M. Dewdney, and Jamie D. Burrow, and published by the UF Department of Plant Pathology, April 2013.
Beyond 'Earlygold': Juice Color and Quality of Additional Early-Maturing Sweet Orange Selections (HS1209)
February 11th, 2013
This publication summarizes 5 years of juice quality information about 15 early-maturing sweet orange selections introduced to Florida and evaluated after ‘Earlygold’ became available. The trees were grown at a central Florida and Indian River location for about 10 years. Also presented are observations on tree development summarized across both locations and two rootstocks. This 8-page fact sheet was written by Horticultural Sciences, and published by the UF Department of William S. Castle, January 2013.
El cancro cítrico es una enfermedad introducida en Florida y es muy perjudicial económicamente para la industria comercial. La enfermedad no está presente en todas las regiones tropicales y subtropicales productoras de cítricos donde el cancro cítrico puede ser problemático, por lo tanto, las restricciones para exportar fruta con cancro cítrico son muy estrictas. Esta enfermedad también concierne a los propietarios, no solo por sus efectos en la industria económica, sino también porque es altamente contagiosa y la mayoría de la fruta contagiada en un árbol muy afectado se cae de éste prematuramente. This 4-page fact sheet was written by M. M. Dewdney, P. D. Roberts, J. H. Graham, K. R. Chung, and M. Zekri, and published by the UF Department of Plant Pathology, January 2013.
Burrowing Nematode Radopholus similis (Cobb, 1893) Thorne, 1949 (Nematoda: Secernentea: Tylenchida: Pratylenchidae: Pratylenchinae) (EENY542/IN969)
November 30th, 2012
The burrowing nematode is the most economically important nematode parasite of banana in the world. Infection causes toppling disease of banana, yellows disease of pepper and spreading decline of citrus. These diseases are the result of burrowing nematode infection destroying root tissue, leaving plants with little to no support or ability to take up water and translocate nutrients. Because of the damage that it causes to citrus, ornamentals and other agricultural industries, worldwide, burrowing nematode is one of the most regulated nematode plant pests. This 5-page fact sheet was written by Nicholas Sekora and William T. Crow, and published by the UF Department of Entomology and Nematology, November 2012.
Evolution of Citrus Disease Management Programs and Their Economic Implications: The Case of Florida's Citrus Industry (FE915)
November 13th, 2012
Managing new exotic endemic diseases is very costly, and it is imperative that state and federal governments focus on preventing the introduction of other diseases such as citrus variegataed cholorosis and citrus leprosis virus. This 6-page fact sheet focuses on the expanded costs of managing exotic citrus diseases as they become endemic or established within a citrus industry. Written by Ronald P. Muraro, and published by the UF Department of Food and Resource Economics, October 2012.
Many people find kumquat trees attractive and useful yard specimens. Their dark green leaves and contrasting bright orange fruits give them ornamental quality, and their relatively small size makes them easy to care for once they’re established. Because kumquats generally require less care than other citrus trees, they may be a good choice for gardeners with less time or experience, but who still desire an attractive and tasty citrus tree. If space is an issue, kumquats also do well in containers as long as they receive proper sunlight and watering. This 2-page fact sheet was written by Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop, and published by the UF Department of School of Forest Resources and Conservation, July 2012.
Quick Sheet: Insecticides and Miticides Recommended for Use in the Florida Citrus Pest Management Guide (ENY854/IN807)
August 24th, 2012
This document is a two-page quick reference guide to citrus insecticides and miticides recommended in the Florida Citrus Pest Management Guide, their effects on important citrus pests, and their natural enemies. Written by M.E. Rogers, P.A. Stansly, L.L. Stelinski, and J.D. Yates, and published by the UF Department of Entomology and Nematology, January 2012.
Identificacion de los sintomas del cancro citrico y procedimientos de descontaminacion (PP214SP/PP138)
El cancro cítrico es una seria enfermedad de los cítricos. La mayoría de los cultivos de cítricos son susceptibles, la toronja, la lima mejicana y algunas naranjas tempranas son las más susceptibles. Una infección severa puede causar defoliación, una muerte regresiva de la rama, una decadencia general del árbol, una caída prematura de la fruta, y manchas en la misma. Los árboles severamente infectados se vuelven débiles, improductivos y no rentables. This 5-page fact sheet was written by Mongi Zekri, Megan Dewdney, Jamie Burrow, and Pamela Roberts, and published by the UF Department of Plant Pathology, August 2012.
Este documento es una hoja de dos páginas ilustrativas para la identificación de la mancha negra de los cítricos. This 2-page fact sheet was written by Megan M. Dewdney and Natalia A. Peres, and published by the UF Department of Plant Pathology, August 2012. http://edis.ifas.ufl.edu/pp295
Este documento es una hoja de dos páginas ilustrativas para la identificación de las enfermedades exóticas de los cítricos. This 2-page fact sheet was written by M. M. Dewdney, J. D. Burrow, M.E. Rogers, and T. M. Spann, and published by the UF Department of Plant Pathology, August 2012.
Este documento es una hoja de dos páginas ilustrativas para la identificación de las enfermedades fúngicas foliares de los cítricos. This 2-page fact sheet was written by M. M. Dewdney and J. D. Burrow, and published by the UF Department of Plant Pathology, August 2012.
Este documento es una hoja de dos páginas ilustrativas para la identificación y manejo de las enfermedades fúngicas foliares de los cítricos a nivel comercial. This 2-page fact sheet was written by Megan M. Dewdney and Jamie D. Burrow, and published by the UF Department of Plant Pathology, August 2012.
Leptoglossus zonatus feeds on the satsuma mandarin by inserting its piercing-sucking mouthparts in the fruit and releasing a toxic substance. It transmits a trypanosomatid plant pathogen similar to the one that causes Chagas’ disease and sleeping sickness in humans, but that is only pathogenic to plants. This 4-page fact sheet was written by Amelio A. Chi and Russell F. Mizell III, and published by the UF Department of Entomology and Nematology, June 2012.
April 2nd, 2012
This fruit fly is one of the most important pests of citrus in Japan. There have been no interceptions of the Japanese orange fly in the United States, probably due in a large part to the protection provided by a U.S. embargo of long standing against citrus from the orient. There have been some efforts recently to effect the removal of this embargo in order that citrus from Japan might be exported to the U.S. If this were to be done, the danger of introducing the Japanese orange fly into the U.S. would be greatly increased. This 2-page fact sheet was written by H. V. Weems, Jr. and T. R. Fasulo, and published by the UF Department of Entomology and Nematology, March 2012.
Outbreaks of Foodborne Disease Associated with Fruit and Vegetable Juices, 1922 to 2010 (FSHN1204/FS188)
The FDA has recently mandated that all 100% fruit/vegetable juices sold wholesale be produced under a Hazard Analysis and Critical Control Point (HACCP) plan. As part of their HACCP plan, juice processors must identify and meet a target for reduction of the most resistant microorganism of public health significance that is likely to occur in the juice. This 7-page fact sheet aids juice processors in the identification of these “pertinent microorganisms,” and reviews the locations of juice preparations and severity of juice-associated outbreaks. Written by M. D. Danyluk, R. M. Goodrich-Schneider, K. R. Schneider, L. J. Harris, and R. W. Worobo, and published by the UF Department of Food Science and Human Nutrition, January 2012.
The Mexican fruit fly is a very serious pest of various fruits, particularly citrus and mango, in Mexico and Central America. Its natural distribution includes the Rio Grande Valley of Texas, where populations routinely attain pest status if control measures are not practiced. It is a frequent invader in southern California and Arizona. Mexican fruit fly represents a particular threat to Florida because of its special affinity for grapefruit, of which Florida is one of the world’s leading producers. Mexican fruit fly larvae are transported widely in infested fruits. This 6-page fact sheet was written by H. V. Weems, Jr, J. B. Heppner, G. J. Steck, T. R. Fasulo and J. L. Nation, and published by the UF Department of Entomology and Nematology, January 2012.
March 1st, 2012
Citrus yellow mosaic is an important viral disease in India, where it causes significant yield reduction. In some groves, infection rate may be as high as 70%. CYMV induces a bright yellow mottling or vein flecking that persists in mature leaves. Yields are sharply reduced in chronically infected ‘Sathgudi’ sweet orange trees in India, and fruit may also show mosaic symptoms. This 2-page fact sheet was written by K.-R. Chung and R. H. Brlansky, and published by the UF Department of Plant Pathology, February 2012.
February 29th, 2012
Mal secco, Italian for “dry disease”, is a fungal disease that causes serious damage to a number of citrus cultivars in the Mediterranean and Black Sea areas, but has not been reported in other citrus-growing regions. The main diagnostic field symptom is that wood of affected limbs has a reddish-yellow stain. This 3-page fact sheet was written by K.-R. Chung, and published by the UF Department of Plant Pathology, February 2012.
February 24th, 2012
Satsuma dwarf is a virus disease that was first reported in the early 1930s in Japan. The disease causes serious problems in citrus because it reduces tree vigor and fruit yield. Satsuma dwarf has also been reported in mandarin-growing areas in China, Korea, and Turkey, where it was likely introduced through importation of infected budwood from Japan. This 2-page fact sheet was written by K.-R. Chung and R.H. Brlansky, and published by the UF Department of Plant Pathology, February 2012.
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