Research local botanical insecticides which can help keep any pest population down. All insecticides are strong, including botanical ones. Keep in mind, however, that the biological composition of botanical insecticides can cause them to quickly decay and disappear.
Biodiversity is a key element of your organic garden. Plants that naturally grow in your region will thrive when planted in your garden. To create a more natural environment, plant many different kinds of plants. A diverse garden is incredibly attractive. It's also very rewarding and relaxing.