New Publications from Extension

Amaryllis Lesion Nematode, Pratylenchus hippeastri Inserra (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. http://edis.ifas.ufl.edu/in975

Management of Insect and Mite Resistance in Ornamental Crops (ENY843/IN715)
Resistance of arthropods to crop management chemicals has been problematic since the early era of synthetic organic pesticides. During the 1970s and early 1980s leafminer outbreaks heavily damaged herbaceous ornamental crops such as chrysanthemum, gypsophila, aster, and marigold in fields, shade houses and greenhouses. Several effective insecticides including organophosphates, carbamates, pyrethroids, and a triazine were identified for leafminer control during the outbreak; however, control was short-lived as the leafminer developed resistance to each insecticide. This 11-page fact sheet was written by James F. Price, Elzie McCord, Jr., and Curtis Nagle, and published by the UF Department of Entomology and Nematology, November 2012. http://edis.ifas.ufl.edu/in715

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