One of the most popular combination deer repellents (ones that act on both odor and taste control) is Ro-Pel. Ro-Pel® combines the bitterest tasting substance ever discovered with a non-toxic solvent system to allow it to adhere to different surfaces. Applied full strength, Ropel has no unpleasant odor. It can be used on trees, saplings, plants,bulbs, and seeds, but can NOT be used on edible plants or crops. Do not apply on sugar maple trees if the sap is to be harvested for syrup. One gallon of ready-to-use Ro-Pel® will treat 1,000 to 4,000 square feet.
This repellent is available at Amazon, but do your homework and make sure it is the right deer repellent to meet your needs. Note that you can not use it on edible plants.