Planting and growing an olive tree in your garden can make a beautiful addition to your yard. Unfortunately, some olive trees produce a large quantity of olives. These trees, if not harvested or sprayed, will drop all of their fruit—which can make a big mess. Rather than sweeping and raking the thousands of olives that are produced by a single tree, you can opt to spray the tree in order to prevent the olives from ever developing. This application is seasonal—meaning that olive tree spraying can only be done at a specific time of the year—from late January into April. So, act fast and call early to make an appointment, as this is a busy time of the year.