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HURRICANE IAN HIT MOST CITRUS GROVES IN FLORIDA WITH HIGH WINDSPEEDS AND FLOODED MANY. DROPPED FRUIT AND LOST FOLIAGE FROM THE CANOPIES WERE IMMEDIATELY APPARENT, BUT PREVIOUS EXPERIENCE SUGGESTS THAT RECOVERY WILL LAG, WITH CONTINUED LEAF AND FRUIT DROP OVER THE COMING MONTHS. FIELD MEASUREMENTS SUGGEST THAT BRANCH STRAIN PROBABLY INDUCED HYDRAULIC FAILURE, AND ROOTZONE FLOODING WILL ALSO LIMIT WATER UPTAKE FROM THE SOIL. GROWER PRACTICES THAT ARE EXPECTED TO IMPROVE RECOVERY, BUT THE IMPACTS HAVE NOT BEEN TESTED IN THIS CONTEXT, AND GROWERS NEED TIMELY INFORMATION TO IMPROVE RECOVERY, AS WELL AS RECOMMENDATIONS TO PLAN PRODUCTION SYSTEMS THAT ARE MORE RESILIENT TO FUTURE STORMS. THESE PRACTICES INCLUDE PARTICLE FILMS, INDIVIDUAL PROTECTIVE COVERS, AND IRRIGATION TO REDUCE STRESS, AND GIBBERELLIC ACID TO ENHANCE NEW LEAF PRODUCTION, AS WELL AS GROVE LAYOUT AND WINDBREAKS TO REDUCE DAMAGE FROM FUTURE STORMS. THEREFORE, WE AIM TO ASSESS AND INFORM GROWERS OF POST-HURRICANE RECOVERY STRATEGIES TO IMPROVE THE RESILIENCE OF THE CITRUS PRODUCTION INDUSTRY IN HURRICANE-PRONE REGIONS. SPECIFICALLY, WE WILL:1. COMMUNICATE REGULARLY WITH CITRUS GROWERS TO INFORM THEM OF THE STATUS OF CITRUS TREE RECOVERY AND THE EFFICACY OF MITIGATION PRACTICES.2. ASSESS TREE HEALTH RESPONSE TO DAMAGE AND RECOVERY FROM THE IMPACTS OF HIGH WINDS AND FLOODING CAUSED BY HURRICANE IAN ACROSS THE GRADIENT OF IMPACT INTENSITY.3. ASSESS THE EFFECTS OF HORTICULTURAL PRACTICES TO ENHANCE RECOVERY AND MITIGATE DAMAGE.ACHIEVING OUR OBJECTIVES WILL MAKE THE FLORIDA CITRUS INDUSTRY MORE SEVERE-WEATHER RESILIENT, AND CONTRIBUTE KNOWLEDGE TO SIMILAR IMPACTS IN OTHER CROPS AND REGIONS.

$280,279FY2023National Institute of Food and AgricultureUSDA

University Of Florida, Gainesville FL

Investigators

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