Curly Top is an insect-vectored viral disease spread by beet leafhoppers, which affects many plants. The beet leafhopper loves warm and dry weather, so that’s when infections are most severe. Species & Taxonomy Kingdom: Phylum: Class: Order: Family: Genus Species: Plants Affected beet family crops: beets, spinach, swiss chard tomato family crops: tomatoes, potatoes, tomatillos, […]