In the early 1800s, a strain of potato blight (Phytophthora infestans) known as HERB-1 began to spread in the Americas, especially Central and North America destroying many crops.
Di awal 1800an, strain dari penyakit hawar (Phytophthora infestans) yang dikenal sebagau HERB-1 mulai menyebar di Amerika, terkhusus di Amerika Tengah dan Utara yang banyak menghancur tanaman.