Tomato spotted wilt disease is caused by two closely related viruses, Tomato Spotted Wilt Virus (TSWV) and Impatiens Necrotic Spot Virus (INSV). It is also hard to identify, with symptoms varying wildly depending upon the variety and age of the infected plant, the strain of the virus, and environmental conditions. Symptoms are the most obvious during later stages of infection. Tomato spotted wilt virus. This fact sheet highlights 3 viral diseases of tomato that are commonly encountered by home gardeners: Cucumber Mosaic Virus (CMV), Tobacco Mosaic Virus (TMV) and Tomato Spotted Wilt Virus (TSWV). This viral infection is transmitted by several species of thrips which are tiny biting insects that find hosts on tomatoes and many other plants. Tomato spotted wilt virus is an infection that is can be seen worldwide. https://en.wikipedia.org/wiki/Tomato_spotted_wilt_orthotospovirus The loss of these leaves typically results in sunscald on the fruit. Tomato mosaic virus is a serious and extremely contagious disease. What is Tomato Mosaic Virus? The leaf then turns brown and dies. The first symptoms of tomato wilt appear as fruit begins to mature, including yellowing and … The virus was first discovered causing a wilt and spotting of tomatoes. www.vegetablemdonline.ppath.cornell.edu/factsheets/Virus_SpottedWilt.htm It has the widest host range of any virus and includes floral crops, bedding plants, vegetables, and a large number of weeds (Table 1). TSWV has very broad host range, infecting more than 1,000 plant species over 80 families , and is transmitted by thrips in a persistent, propagative manner (6, 9, 18, 19). It is extremely common, and it will eventually rot the entire plant, including the fruit. The problem even spread out to the other areas. The virus is spread by different species of thrips which are tiny insects that feed on the sap of plants. Wilt is a symptom of plant disease that is due to water loss in stems and leaves, and a result of bacteria, fungi, and viruses spreading to plants. diseases can negatively affect tomatoes by drastically reducing yield and/or fruit quality. Tomato Spotted Wilt Virus (TSWV) The name suggests that the virus only affects tomato plants, but that's not true. Various species of plants can be infected across the globe. Despite the name of this disease, infected tomato plants do not always wilt. TOMATO SPOTTED WILT VIRUS Tomato spotted wilt is caused by the tomato spotted wilt virus (TSWV) which occurs worldwide. Symptoms start with older leaves that develop yellow, V-shaped areas. It is a type of plant virus that mainly occurs in Australia during the early year of 1990. Tomato spotted wilt virus (TSWV) is the type member of the only genus Orthotospovirus in the family Tospoviridae (14, 16). What does tomato wilt look like? 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