SP370-A-Impatiens Necrotic Spot Virus

Impatiens necrotic spot virus (INSV) is quickly becoming one of the most important viral pathogens of floral crops in Tennessee and the United States. INSV has historically been a problem in Mexico, and the western and southwestern parts of the U.S. and Hawaii. During the mid-1980s, INSV has spread rapidly in the Gulf Coast states from Texas to Florida, and north into Tennessee and Kentucky. Although the reasons as to why the virus spread so rapidly are unknown, it may be related to the migration of the thrips from infested regions into new areas and movement of infected plant material between greenhouses.