2019 07 22 electronic deer repeller

electronic pest repeller as a deer repeller. Three brands tried in Warren , Maine.
Wikomo, Zovenchi, and Hoont. ALL WORKED. BUT NOTE THE WARNING BELOW.
After a couple days NO deer came back to eat tree leaves. Test was in July 2019. Units were tested for one month. Wikomo could not be used at full volume and light because it wore down the battery. Hoont required minimal assembly.
This could be a good alternative to putting up complicated electric fences.
WARNING : When temperatures outdoors reached 34 degrees F, ALL the electronic repellers stopped working. By that time most of the apples could be harvested, most , not all.

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