In an article from Reader's Digest, Dan Herms, vice president of research and development at the Davey Institute, shares key insights about cicadas.
It’s easy to wince thinking about the mass emergence of insects like cicadas. Their numbers can reach millions per acre, creating a near-deafening buzzing chorus. 
So it’s understandable that questions like, “Will cicadas eat my plants?” immediately spring to mind.
But cicadas are also pretty fascinating and play important roles in the ecosystem.
“Soil temperature can affect emergence,” says Daniel A. Herms, PhD, vice president of research and development at the Davey Tree Expert Company. Adult cicadas are triggered to emerge when the soil temperature at about eight inches deep reaches approximately 64 degrees Fahrenheit.”
To learn more about how cicadas impact gardens, read the rest of the article here.
The Davey Tree Expert Company provides research-driven tree services, grounds maintenance and environmental and utility infrastructure consulting for residential, utility, commercial and environmental partners in the U.S. and Canada. Established in 1880 and headquartered in Kent, Ohio, Davey has over 12,000 employees who create and deliver sustainable solutions. Davey continues to grow through expertise with the SEED Campus, its newest commitment to training, research and safety. Become part of the Davey legacy by applying today and join one of the top ten largest employee-owned companies in the U.S.
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