2026–2027 Florida Citrus Production Guide: Chemical Guide Introduction

Starting in 2026, the Florida Citrus Production Guide is available as two separate booklets. The first booklet will provide information that does not change frequently such as personal protective equipment (PPE) guidelines and the biology of many of the insects, diseases, and horticultural practices that are part of citrus production. The first booklet will be updated every 3 years.

This second booklet will be printed annually and include any pertinent updates to legislation that impacts Florida citrus production and all pesticide and PGR tables that were previously incorporated into each chapter. The chapters here on Ask IFAS will be amended should changes occur between printing. This allows for rapid updates to incorporate new knowledge.

The UF/IFAS Citrus Research and Education Center (CREC) is the oldest and largest off-campus experiment station in UF's Institute of Food and Agricultural Sciences (UF/IFAS) and is unique among research centers in that it focuses entirely on one commodity, citrus. [website]

The department is recognized as a national and international leader in many areas of plant pathology. The research programs focus on diseases caused by fastidious microorganisms, bacteria, fungi, and whitefly- and aphid-transmitted viruses. We are known for our research on diseases of diverse crops including citrus; vegetables such as tomato, pepper and cucurbits; ornamentals including foliage plants and flowering and woody ornamentals; field crops including soybean, peanut and sugarcane; and tropical fruits. Our strengths also include expertise in epidemiology, molecular biology of host-parasite interactions, biological control, and post-harvest diseases. Our faculty has also been very active in international programs as evidenced by the many collaborative efforts in Florida and outside the U.S.
--- About Plant Pathology, https://plantpath.ifas.ufl.edu/about-us/