Mechanical Deer Deterrents
If deer pressure is high, chemical repellents may not be enough. Mechanical deterrents can be used in combination with liquid repellents or used alone. There are several products recommended for deer control that don't fall under the catagory of either repellents, or fencing.
Scare Devices
Wireless Deer Fence™ -
Each unit has a scent reservoir with a perfumed oil that is
attractive to deer. When deer investigate, they receive a small electric
shock. The deer learn to avoid them, so you'll need to keep moving the
units, but they're easy to move. Powered by two AA batteries, the shock is
humane but strong enough to startle the hungry deer.
The Havahart® Electronic Repellent for Deer - uses a technology that
attracts deer to posts with a lure scent. Then repels deer from your yard or garden
with an slight electronic shock less than a static shock might be. It is extrememly similar to Wireless Deer Fence.
The Scarecrow™ - This
motion-activated sprinkler attaches to the garden hose. Just hook it
up to your garden hose, plug in the 9-Volt battery and then place the
stake in the ground near area to be protected. When an animal is
seen, a valve opens, and instantly releases a three-second pulsating spray
of water. The combination of the sudden noise, movement, and water
frightens animals away. Is s a clean and alternative to
repellant, but is limited to the distance the water can
spray. Both a pro and con is that it is motion activated
sensing motion and
heat the same way security lights work. This motion could be
deer, your dog or cat, or you. One scarecrow can cover up to 1,000 square feet.
Scarecrow Motion Activated Sprinkler
DeerChaser®
the motion sensor on this DeerChaser® activates, causing it to sound a loud, high-frequency noise, and flash a bright 2-LED light; continues for 2-15 minutes (adjustable) past the last motion detected. Senses movement in a 120? area, up to 25' away. Works day and night. Safe around pets. Three "D" batteries (not included) last up to three months, depending on activation length and setting. Weatherproof housing includes mounting bracket, and measures 4"x10-14".
DeerChaser® Deer Repeller
Scare Wars® uses radio and computer technology to operate LP gas cannons. It is marketed as the best wildlife deterrent on the market today because the cannons only go off when a deer or other wildlife is sighted. This way the deer never get used to it going off. Because of expense, it is suggested for commercial nurseries and orchards.
Ultrasonic
units -These devices emit an ultrasonic pulse that startles deer. The
timing, duration and frequency of the sound changes randomly so deer don't
get used to any particular sound
Yard Guard Ultrasonic Deer Repeller
Yard Guard Ultrasonic Deer Repeller This electronic yard protector keeps animals away from your property without messy or expensive chemical solutions and provides coverage up to 4000 square feet. Proven sound technology repels a number of unwanted pests. Motion sensor triggers ultrasonic blasts in battery mode to save battery. Repels dogs, cats, deer, raccoons, skunks,deer, and other pests. Adjustable frequencies for different pests.
Critter Blaster Pro
Electronic Animal Repellent- Probably best suited for
commercial use, but could be used in urban areas, the Critter Blaster
electronically produces eight different sounds of animals in distress or
sounds that harass animals and keep them away. It was designed for farms,
vineyards, and other large commercial producers. Critter Blaster is
programmable and constantly changes the
noises it produces. Said to repel deer, raccoons, dogs, foxes, rodents,
and other critters. Has adjustable volume controls, four speakers, and runs on electricity.
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