The Periodical Cicada, "the 17-year Locust"

"The Periodical Cicada, 'the 17-year Locust'" is a scientific publication produced by the U.S. Department of Agriculture, likely written in the mid-20th century. This pamphlet provides an in-depth exploration of periodical cicadas, particularly focusing on their unique life cycle that alternates between 17 and 13 years, along with their cultural significance and misconceptions surrounding them. The booklet details the fascinating lifecycle of the periodical cicada, beginning with their underground existence as nymphs that last over a decade before emerging en masse to mate and lay eggs. It emphasizes the dramatic transformation from nymph to adult and the cicadas' characteristic mating calls that fill the spring air. Furthermore, it addresses common myths about cicadas, clarifying their ecological role and the minimal damage they cause to plants. With practical information on managing cicada-induced damage to young trees and the natural predators of cicadas, this publication serves as a valuable resource for understanding these intriguing insects. (This is an automatically generated summary.)

The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secretary of agriculture, who reports directly to the president of the United States and is a member of the president's Cabinet. The current secretary is Tom Vilsack, who has served since February 24, 2021.