Bats, including fruit bats, often make attics or the area under the eaves of houses their nesting ground. While this is a problem that should be dealt with immediately, for the average home gardener who is growing fruit, fruit bats are not necessarily making themselves comfortable in the home. Rather, they are making themselves comfortable in the garden, eating up the gardener's harvest. If you have fruit bats eating your fruits, you can do a few things to help get rid of them.
Pick your fruit when it is ripe. Don't allow it to over-ripen. Also, clean up the fruit that drops to the ground.
Put a net, such as bird netting, over your fruit trees while the fruit is ripening. The netting should reach the ground and anchored with stakes or the bats will get in. They will also get in if there are tears in the netting.
Install an owl roosting box near your fruit crops. You can also put owl decoys nearby. Fruit bats are afraid of owls. You can even play a recorded owl call a during the night time to scare them away.
Place clear plastic bags over larger fruits while they ripen. This will help prevent the smell that the fruit bats are attracted to from permeating the air.