Bacteria as plant pathogens can cause severe economically damaging diseases, ranging from spots, mosaic patterns or pustules on leaves (Figure 5) and fruits, or smelly tuber rots to plant death.
Size of force or number of deaths does not necessarily equate to worst - the question is not what was the largest defeat nor was it what was the defeat with the most casualties. As such, I would suggest that the worst defeat in US military history was the Battle of Little Big Horn, or Custer's Last Stand - a hastily decided attack by Custer left his troops ripe for the picking by the Soux and Apache warriors.
Library of Congress hide caption. On this morning 150 years ago, Union and Confederate troops clashed at the crossroads town of Sharpsburg, Md. The Battle of Antietam remains the bloodiest single day in American history. The battle left 23,000 men killed or wounded in the fields, woods and dirt roads, and it changed the course of the Civil War.