Trillions of cicadas emerge across U.S.

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>>> TRILLIONS OF CICADAS ARE EMERGING IN SOME PARTS OF THE COUNTRY AFTER LAYING DORMANT FOR MORE THAN A DECADE. THE COLLECTIVE NOISE FROM THE INSECTS CAN BE AS LOUD AS THE JET ENGINE. IT IS SO LOUD THAT SOME RESIDENTS IN SOUTH CAROLINA CALLED THE POLICE. CICADAS ARE ALSO GETTING TO COME OUT IN ILLINOIS. WHICH WE WILL SEE TWO GROUPS EMERGE FOR THE FIRST TIME IN MORE THAN 200 YEARS. WE ARE JOINED BY AN EXTENSION ENTOMOLOGIST AT THE UNIVERSITY OF KENTUCKY. SO, WE WARNED PEOPLE THAT THIS WAS HAPPENING, BUT EITHER THEY WERE NOT PAYING ATTENTION TO THE NEWS OR HAD NO IDEA IT WOULD BE THIS BAD. BUT WHAT ARE PEOPLE EXPERIENCING NOW THAT THESE TWO BRUTES ARE EMERGING? >> WE HAVE SO MANY COMING OUT OF THE GROUND. IT REALLY IS AMAZING TO SEE AND HEAR. I KNOW IT COULD STARTLE SOME PEOPLE BUT IT IS NOT NECESSARY TO INVOLVE THE POLICE. THEY WILL BE GONE IN A FEW WEEKS, BY JUNE, AND THEY HAVE BEEN WAITING 13 OR 17 YEARS GETTING ABOVEGROUND. THEY DON'T WANT TO SPEND THIS PRECIOUS TIME IN A JAIL CELL. >> WHAT ARE THE SIMILARITIES BETWEEN THE TWO BRUTES? >> WE KNOW THAT THERE ARE TWO DIFFERENT BRUTES BECAUSE ONE GROUP EMERGING CONCENTRATED IN ILLINOIS, THE WISCONSIN AREA, THAT IS A 17 YEAR BROOD. THAT IS THREE DIFFERENT SPECIES. AND THEY HAVE SOME VISUAL AND AUDITORY THINGS THAT HELP US DIFFERENTIATE FROM THE 13 YEAR CICADAS WHICH ARE PART OF THE GREAT SOUTHERN BROOD WHICH WILL BE EMERGING ACROSS MUCH OF THE SOUTHEASTERN UNITED STATES. >> I CAN'T GET OVER THE WORD BROOD. I THINK ABOUT THE GREAT SOUTHERN BROOD, LIKE AN INVADING MILITARY. HOW DO THEY KNOW WHEN TO EMERGE? >> THAT IS A GREAT QUESTION. WHEN THEY ARE UNDERGROUND THEY ARE BABY CICADAS AND THEY ARE COUNTING THAT EBB AND FLOW OF THEIR FOOD RESOURCE, THE SAP FROM THE TREE. AFTER A CERTAIN NUMBER OF INSTANCES, IT IS A QUEUE IN THEIR BRAIN THAT TELLS THEM IT'S TIME TO COME UP. THEY DO MISCOUNT, WE HAVE SOME THAT RISE UP EARLY AND SOME THAT MISCOUNT AND THEY ARE LATE. UP TO THREE YEARS LATE. >> YOU MENTIONED THAT THEY DRINK TREE SAP. OFTEN WHEN WE SEE A BUNCH OF INSECTS DESCENDING ON US, WE ARE USUALLY WARNED, YOUR GARDENS, PROTECT YOUR TREES. BUT YOU DON'T OFTEN HEAR THAT ABOUT CICADAS. WHEN YOU HAVE THIS MANY CICADAS OUT FEEDING, DOESN'T NOT HAVE AN IMPACT ON THE ENVIRONMENT AND FOLIAGE? >> AS ADULTS THEY DON'T EAT VERY MUCH. THEY DO MOST OF THEIR EATING BELOW GROUND. ABOVE GROUND THEY ARE REALLY ONLY LOOKING TO DO A COUPLE OF THINGS. THE MALES ARE LOOKING TO SING, TO ATTRACT EMAILS. IT IS KIND OF THE WORLD'S DARKEST MARDI GRAS. BECAUSE THERE IS A BUNCH OF THE SINGING, AND OTHER THINGS AND THEN DYING. SO IT'S NOT REALLY ABOUT EATING AND THAT IS ONE OF THE REASONS WE DON'T CONSIDER THEM MAJOR PESTS. THE FEMALES, WHEN THEY LAY EGGS, THAT COULD CAUSE SOME PROBLEMS, LIKE TWIGS BREAKING ON TREES. THAT COULD BE PROBLEMATIC FOR PEOPLE LIKE FRUIT GROWERS. >> SINGING,
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Channel: CBS News
Views: 250,292
Rating: undefined out of 5
Keywords: cicadas, insects, u.s. news, broods, noise, science, Cicadas, Insects, Science, CBS News, U.S.
Id: hAvHb86jtbM
Channel Id: undefined
Length: 3min 46sec (226 seconds)
Published: Fri Apr 26 2024
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