Phytophthora infestans, also known as late blight, is a destructive plant pathogen that affects the foliage, stems, and tubers of potato and tomato plants. This disease causes severe damage to crops and can result in huge economic losses for farmers. To help identify and prevent the spread of this pathogen, it's important to know its synonyms. Some common synonyms for Phytophthora infestans include the potato blight, tomato blight, Irish potato famine disease, and late potato blight. By using these interchangeable terms, farmers and scientists can communicate more effectively and work together to combat this devastating disease.