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In 2013, the USDA Forest Service published this detailed map of the 15 periodic cicada broods in the U.S. and their emergence years between 2013 and 2029.
Cicadas have a periodical life cycle, only emerging from below the surface when they reach adulthood and temperatures are right. Some take 13 years to become adults, while others take 17 years.
Cicadas typically appear in 17-year cycles, though some cicadas operate on a 13-year schedule. Cicadas of the same life cycle are classified in different "broods." This year's group will be known ...
The brood's 2021 expected emergence in 15 states (Delaware, Illinois, Georgia, Indiana, New York, Kentucky, Maryland, North Carolina, New Jersey, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and Michigan), as well as in Washington, D.C., began in April. [5] [17] [25] Emergent cicadas were observed in western North Carolina during mid ...
The brood's most recent major emergence occurred during the spring and early summer of 2024, throughout an area roughly enclosed by northern Illinois, eastern Iowa, southern Wisconsin, and a narrow strip of Indiana bordering Lake Michigan and Michigan. [3] A premature emergence occurred in 2020. [4] The brood will emerge again in late May 2041 ...
In outbreak years, the cicadas do significant damage to the trees on which they lay eggs, especially saplings. The female cuts a slit in a twig in which to insert her eggs and this often causes the shoot to droop and defoliate. In larger twigs it may allow entry of disease organisms. The burden of feeding of the nymphs is also considerable.
Periodical Brood XIV cicadas are set to return to the following states sometime in May: Georgia, Kentucky, Indiana, Massachusetts, Maryland, North Carolina, New Jersey, New York, Ohio ...
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