There are many reasons a juniper might turn brown. Fungal tip blights, cankers, mechanical damage, and salt injury are some of the most common causes. Several juniper samples with tip blight were submitted to the Plant Disease Clinic this spring. Phomopsis and Kabatina tip blights are two common diseases of juniper.

How do you keep junipers from turning brown?

Treat scales with horticultural oil; pour 1 to 2 ounces of horticultural oil into 1 gallon of water and spray the juniper. Coat the leaves and branches thoroughly. The treatment should be done every two weeks while the scale insects are present but should not be done more than four times.

Do junipers turn brown in winter?

Junipers (Juniperus spp.) are low-maintenance evergreens and maintain their color throughout the cold winter months in U.S. Department of Agriculture plant hardiness zones 4 through 10. … However, a winter occurrence of browning branches usually indicates either Kabatina tip blight or an injury called winter desiccation.