HOW TO DESTROY OR DETER CICADAS:
DETERRENCE: Neotibicens are almost never found in large numbers to raise any major concern. A Neotibicen's egg laying process is also nowhere near the destructiveness of that of the Magicicada races, despite their size. In fact, I've inspected fresh Neotibicen egg nests up close and I was barely able to notice them! If I hadn't discovered a female ovipositing, I would have never noticed these nests at all. Neotibicens often don't leave any trace.
Magicicadas can cause very noticeable damage, especially since they appear in massive numbers. The splinters they leave in the wood are also very noticeable and easy to find. This egg laying can cause the leaves and branches to wither and die... This is called "flagging" since broken and dangling branches resemble "flags" flapping in the wind. Smaller trees and shrubs that are victims with heavy "flagging" can often die. My suggestion is to note the emergence years in your area and do not plant trees or shrubs on these years. Especially orchard growers since Magicicadas often like fruit trees! If you absolutely must plant on these years, please wait until after mid-July when their emergences and ovipositing is completed. If you already have established saplings, cover them with a cheese cloth prior to their expected emergence and tie the cloth at the base of the tree. This will prevent females from doing their ovipositing damage. Preventing their emergence by placing materials around at the base of your trees is usually a waste of your time. The emerging nymphs can and will emerge on other objects besides your tree. It may prevent some of them from molting on your tree, but they'll just relocate to another object nearby.
HOW TO DESTROY CICADAS: There are many chemical agents that kill the cicada. By applying these agents will not only kill the cicadas, but will kill other beneficial insects and animals as well! Damage caused by cicada ovipositing is a natural pruning process and helps eliminate the weaker branches on a tree! Please do not use insecticides that may do more harm than good and pollute the environment. Periodical Cicadas are only around for approximately six weeks, ONCE every 13 or 17 years! (Generally, there are a few areas where Broods overlap in their territories.)
My suggestion is simply to LEAVE THEM ALONE! Try to enjoy this natural phenomenon.
NOTE: This information is for general reference. Please remember that cicadas are harmless. They do not sting, bite, or carry diseases. And yes, I do know what chemical agents are used in their destruction... Don't ask me because I won't tell you! I love these insects and have the highest respect for nature and our environment. Have the common courtesy to do the same....