Dothistroma Needle Blight

Tree showing Dothistroma Needle Blight

Description: Fungal disease of pines causing browning of needles, loss of needles, and some dieback of limbs.

Trees Affected: Pines, Austrian pine very susceptible

What to look for: Browning needles, falling needles, tufted appearance due to needle loss. Disease is usually worse during periods of stress or drought.

Treatment Options: Preventive fungicide applications, Rake up infected leaves. Keep tree as healthy as possible with watering and mulching.