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Subjects > Animals > Insects > Cicada
Please visit the Chat11 [Cicada Picture Gallery]. Also more information on Cicadids ...
Periodical cicadas emerge in specific locations once every 17 years in the northern part of their range, and once every 13 years in the southern part. Different groups called "broods" emerge somewhere in the eastern United States almost every spring.
Brood X will appear in the Cincinnati area in Spring 2004.
Cicadas appear for about 4-6 weeks from May to July, but are most numerous in the last two weeks of May and first week of June. Although male cicadas often synchronize their buzzing to create a deafening noise, they are not poisonous nor do they sting.
Periodical cicadas are most damaging to small young trees that have the most desirable branch size for egg laying. The female Cicada targets small newly planted trees (four years or younger). The female places her saw-like egg laying tube, called an ovipositor, into small branches and twigs that are about the diameter of a pencil. Twigs will die because the branch is split when the eggs are placed under the thin bark. This dead twig contrasts with the surrounding green foliage, a condition called flagging. Large, established trees can often have large amounts of flagging but rarely suffer severe damage.
If a periodical cicada emergence is predicted, it is best to postpone new plantings until the following spring. Home gardeners are encouraged to delay planting until late summer or fall, after adult activity has ended.
Newly planted or younger trees can be covered with fine netting to keep the cicadas from reaching the small tender twigs. Secure the netting around the trunk to stop them from climbing up into the tree. Remove the netting at the end of June
Other cicada links:
See more Cool stuff about insects
Bill Nye the Science Guy: Reptiles & Insects
Insect Biochemistry & Molecular Biology [MAGAZINE SUBSCRIPTION]
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