Mosaic Virus
🦠 Diseases●● Intermediate
Also known as: TMV, CMV
Mosaic viruses (Tobacco Mosaic Virus, Cucumber Mosaic Virus, etc.) create distinctive light and dark green mottling on leaves, often with leaf distortion and dwarfed growth. They are spread by aphids, contaminated tools, and even human hands (TMV survives on surfaces for months). There is no cure; infected plants should be removed. Resistance genes (labeled "TMV" in seed catalogs) are the primary defense.