Hurricane Ian is approaching the Southeast and is expected to bring significant amounts of rain and heavy winds to South Carolina over the weekend. The latest forecasts show Ian traveling northeast towards the Atlantic, then northward through western South Carolina.
Clemson Extension agents advise specialty crop growers in The South Carolina Grower to be prepared to experience damaging winds, excessive rainfall and power outages. After the wind and rain have passed and it is safe to do so, take lots of photos of any damage experienced on your farm for insurance purposes.
Structural and Land Considerations
Be sure to anchor down or put anything away that may blow away in a stiff wind. Numerous high tunnels were damaged or took flight in Hurricane Matthew in 2016. If possible, it wouldnt be a bad idea to remove the plastic from the frame to protect its structural integrity in the wind. If that is not possible, cutting the plastic will work if the winds get strong enough to warrant it (but wait until the last minute to make this decision). Make sure ditches are clear around production areas so excess water will be able to drain unimpeded. If there is enough time, digging drainage furrows in areas prone to holding water may be helpful as well.
Disease Considerations
Winds and rain from Hurricane Ian may bring fungal spores or bacterial cells into fields in South Carolina. Before the rain starts on Thursday, cucumber, cantaloupe, pumpkin, and watermelon crops should be sprayed with a fungicide to protect them from downy mildew. Ranman is suggested. The extended periods of leaf wetness will promote the development of gummy stem blight and anthracnose. Systemic fungicides are needed now because they will move into the leaf and provide residual control after the residue on the leaf surface is washed off due to excessive rains. Quadris Top is one of the few fungicides that will protect against both gummy stem blight and anthracnose. Other systemic products include Inspire Super or Miravis Prime for gummy stem blight and Topsin M for anthracnose.
Black rot on brassica crops is typically seen after a hurricane because the wind-driven rain spreads the bacterium. Since black rot is already present in several areas, it is likely to be much worse after the hurricane. No chemicals are effective enough to provide useful protection before a hurricane. Growers should consider harvesting early if the crop is close enough to maturity.
Food Safety Considerations
Flood waters resulting from a natural disaster present a food safety risk to food crops. Flooding, as defined by the Food and Drug Administration (FDA), is the flowing or overflowing of a field with water outside a growers control. Pooled water resulting from rainfall or irrigation systems does not pose the same risks as flood water. Flood water can contain hazards from runoff or sewage. These hazards may be biological (bacteria, viruses, parasites) and/or chemical (petroleum, heavy metals, chemicals, etc.). If present, they may cause illness or injury to consumers.
Also, be aware that produce in cold storage can degrade rapidly if power is lost. If backup generators are available, make sure they are in good working order.
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Hurricane Ian Preparation Considerations for South Carolina Fruit and ...
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