Which pathogens infect plants?

Plants can be infected by various pathogens, including fungi, bacteria, viruses, and nematodes. Fungal pathogens, such as Phytophthora and Botrytis, often cause diseases like blight and rot. Bacterial infections, such as those caused by Xanthomonas and Pseudomonas, can lead to wilting and leaf spots. Additionally, viruses like Tobacco Mosaic Virus and nematodes can severely impact plant health and productivity.