If it is blight then cut out and destroy (burn) but sometimes if the roots have been allowed to dry it shows the same result and with watering and time will come back, common box is larger and best for hedging it doesn't take as long to grow and establish, no cure for blight as yet and will spread if left untreated,
If it is blight then cut out and destroy (burn) but sometimes if the roots have been allowed to dry it shows the same result and with watering and time will come back, common box is larger and best for hedging it doesn't take as long to grow and establish, no cure for blight as yet and will spread if left untreated,