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Drip Irrigation Promising for Spinach

Research by University of California Cooperative Extension shows that drip irrigation may help prevent downy mildew in spinach, in addition to saving water and energy. The finding could be especially important to organic spinach growers, who have no approved fungicide option to combat the disease. Field trials showed a four- to five-times reduction in downy mildew in plots grown with drip irrigation compared to sprinkler-irrigated plots, likely due to less moisture left in the plant canopy.