UF AgriGator Spray Program: Watermelon

By Nicholas S. Dufault, Mathews Paret, Kiersten Fullem, Pamela D. Roberts, Gary Vallad, and Susannah Da Silva.

This guide is intended as a resource for Extension agents and growers and contains information about common oomycete, fungal, and bacterial disease issues in watermelon production. It contains management considerations, information on commonly encountered diseases, and a suggested seasonal spray schedule tailored to specific disease concerns. This publication uses data from pesticide efficacy trials and input from experts in watermelon production.

Florida Blueberry Leaf Disease Guide

By Douglas A. Phillips, Norma C. Flor, and Philip F. Harmon.

Southern highbush blueberry (SHB) cultivars are commercially grown throughout much of Florida in both deciduous and evergreen production systems. Growers in deciduous production should strive to keep leaves healthy through flower bud differentiation in fall to ensure optimum yield potential. In evergreen production, it is critical to maintain the prior year’s foliage through winter months to support early fruit production the following season. In both systems, many factors can damage leaves, such as environmental conditions, chemical applications, insects, and diseases. This publication 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 available management options.

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