It's important when trying to control deer damage in your landscape to choose deer resistant plants. But, keep in mind that if the deer are hungry enough, they can severly damage the best of deer resistant plants. So, your next option is deer repellents.
Keep in mind that repellents that help keep deer away from your landscape plants work in two ways. Repellents either make the plants taste bad or impart an odor that is objectionable to the deer's nose.
The best product out there does both. But, keep in mind that you have to read and understand the use of each product because some products are not to be used on food crops. Before giving you a list of repellents that have proven effective, let me give you some tips for their use.
Of course, read the label. Apply most of the repellents at or around 40 degrees and never let the product freeze in its container. In most cases, spray the plants to runoff. As for mixing, only mix up what you can use at one time and be sure to mix it thoroughly. One more hint: repellents should be applied to the new growth.
Now, for a list of repellents. Great success has been reported with a product called Liquid Fence, which is applied as a liquid and sold in many locations in the region. Another product that has been met with great success is called Deer Away. Both of these have eggs whites as their main ingredient.
Another deer repellent that is available locally is a product called Repellex, which is a tablet that can be placed under your tree, shrub or around your flowers. This product can't be used around food producing plants.
Repellents work great, but keep in mind that this method, coupled with selecting deer resistant plants, is the best approach to controlling deer damage in your landscape.