It is a type of plant virus that mainly occurs in Australia during the early year of 1990. The virus was first discovered causing a wilt and spotting of tomatoes. www.vegetablemdonline.ppath.cornell.edu/factsheets/Virus_SpottedWilt.htm It is subtropical, temperate and tropical regions around the world. Tomato Spotted Wilt Virus (TSWV) The name suggests that the virus only affects tomato plants, but that's not true. diseases can negatively affect tomatoes by drastically reducing yield and/or fruit quality. It has the widest host range of any virus and includes floral crops, bedding plants, vegetables, and a large number of weeds (Table 1). The problem even spread out to the other areas. Symptoms start with older leaves that develop yellow, V-shaped areas. It is extremely common, and it will eventually rot the entire plant, including the fruit. https://en.wikipedia.org/wiki/Tomato_spotted_wilt_orthotospovirus The loss of these leaves typically results in sunscald on the fruit. Yes, “Tomato wilt is a viral disease”. Tomato spotted wilt virus is an infection that is can be seen worldwide. Symptoms are the most obvious during later stages of infection. The first symptoms of tomato wilt appear as fruit begins to mature, including yellowing and … Tomato mosaic virus is a serious and extremely contagious disease. These viruses infect many weed and crop plants, which then serve as new sources for the virus to spread. 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. 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). TOMATO SPOTTED WILT VIRUS Tomato spotted wilt is caused by the tomato spotted wilt virus (TSWV) which occurs worldwide. The virus is spread by different species of thrips which are tiny insects that feed on the sap of plants. The leaf then turns brown and dies. What does tomato wilt look like? Photo credit: Wikimedia Commons When you see little sunken areas starting to appear in your tomato’s leaves, you’ll know they have a case of anthracnose.This fungal pathogen is one of the most common tomato plant diseases, and is caused by Colletotrichum phomoides fungus. Tomato spotted wilt disease is caused by two closely related viruses, Tomato Spotted Wilt Virus (TSWV) and Impatiens Necrotic Spot Virus (INSV). What is Tomato Mosaic Virus? 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. This viral infection is transmitted by several species of thrips which are tiny biting insects that find hosts on tomatoes and many other plants. 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