Florida Blueberry Leaf Disease Guide

'Jewel' SHB

Southern highbush blueberry (SHB) cultivars are commercially grown throughout much of Florida, in both deciduous and evergreen production systems. In both systems, leaves can be damaged by many factors including environmental conditions, chemical applications, insects, and diseases. This new 12-page publication of the UF/IFAS Plant Pathology Department includes basic information to assist growers in determining 1) the likely cause (fungal, viral, algal, or bacterial) of leaf symptoms, 2) when specific leaf spots are likely to occur, 3) characteristic symptoms of common leaf problems, and 4) some of the management options that are available. Written by Douglas A. Phillips, Norma C. Flor, and Philip F. Harmon.

Blueberry Gall Midge on Southern Highbush Blueberry in Florida

Adult blueberry gall midge (female—left, male—right).

Blueberry gall midge is a small fly native to North America that feeds on blueberries and cranberries. It can be found throughout the United States, including Florida, where its larvae feed on southern highbush blueberry and rabbiteye floral and vegetative buds. Reports of blueberry gall midge damage on southern highbush blueberry in Florida have become more common in recent years, in some cases significantly impacting yield where there was severe feeding damage to floral buds. This 3-page fact sheet written by Oscar Liburd and Doug Phillips and published by the UF/IFAS Department of Entomology and Nematology will inform growers how to scout for, identify, and control blueberry gall midge.