Man and Technology vs Deer and Hunger
Damage of crops, shrubs, and ornamental trees due to deer ranges in the millions of dollars every year. As people move from the cities into the suburbs and rural areas, they displace the deer and plant expensive shrubs where deer used to eat. Hunting laws, quotas, and discharge laws make it difficult to thin the herd. What can a person do to keep deer away from their yard and their shrubs? What can a farmer do to keep their crops from being destroyed by deer? One of the more humane ways of protecting the shrubs and crops from deer damage is with an ultrasonic deer deterrent.
These pest repellents are available thru local home repair stores and also online. They operate by emitting ultrasonic sound waves in order to annoy or scare off deer and other wildlife that might destroy your plants. If the repellent is operating on 120cAC, they operate constantly. Many can also be run on battery, but then they would operate using a motion detector in order to save the battery.
There are advantages to using the ultrasonic deer deterrent. There are no harmful chemicals being sprayed to hurt the environment. They can be used to protect edible plants, where many sprays cannot. Protective fencing can be unsightly and get complaints from your neighbors. Encouraging more hunting in the area can result in accidents, complaints from neighbors and may not adequately thin the herd.
There are some drawbacks to this remedy. The ultrasonic waves will only cover a limited area, so if the area you are trying to protect is large, multiple overlapping ultrasonic deer deterrents will have to be used. If you want them operating constantly, you will also need a power source for each repellent. Although they emit an ultrasonic sound wave that is not supposed to be heard by humans, some people have reported hearing an annoying noise. They may also disturb your pets. Your dog or cat may not want to come into that area, or it may disturb them while they are in that area.
Whether they protect your shrubs, trees and crops is also undetermined. Different reviews show that some people have success with keeping the deer away and others are disappointed. Sound waves may be blocked by structures, trees and lawn ornaments. Deer may be hungry and just ignore or get used to the annoying sounds. The ultrasonic deer deterrent may also emit stronger sound waves when plugged into 120vAC, so they may not be as efficient when working off batteries.