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Cold Injury and Frost Protection

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When and How to Protect Ornamental Plants in Miami-Dade County During Winter

Qingchun LiuOctober 13th, 2023Qingchun Liu, Teresa Olczyk, and Jianjun Chen Miami-Dade County is the top producer of ornamental crops in Florida, with a total value of around 700 million in 2017. Most ornamental crops are subtropical and tropical in origin and sensitive to temperatures below 50 °F (10 °C), particularly to temperatures near freezing points during winter months. […]

Where to Find Weather Information for Nursery Growers in Miami-Dade County When Monitoring Low Temperatures for Cold Protection?

Qingchun LiuSeptember 22nd, 2023Qingchun Liu, Teresa Olczyk, and William R. Lusher Ornamental productions in Miami-Dade County are concentrated in the Homestead area, the southwest corner of the County. During the wintertime, particularly from late December through January, the temperature occasionally could drop to below 40 °F, which can cause irreversible damage to the tropical and subtropical plants without […]

Plant Pests and Pathogens Evolve Mechanisms to Survive Freezing Temperatures

Kevin KorusJanuary 30th, 2023It is a common question that I receive each year. Will freezing temperatures during the winter take care of the plant pests and pathogens in my garden this summer? Unfortunately, the answer is mostly ‘no’. Although some insects and microorganisms that are exposed to the elements will die, most of these pests have adaptations that […]

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