Boxwood Blight

Boxwood Blight Cylindrocladium buxicola = Calonectria pseudonaviculata

The investation starts with black spots on the leaf. A few days later the affected leaves will fall down en masse and black stripes appear on the young twigs.

Damage

large, bald places which can lead to plant death.

Treatment

to be treated with special fungicides as from May. Extra care in warm, moisty periods with heavy rainfall.

Treatment schedule Cylindrocladium and Volutella : Consumer België  2018

Time Product Dosage/10 litre water Remark
May Ortiva Plus
+ Sporgon Garden
10ml
10 gr
 
June Eminent 7.5 ml max. 3x/year
July Eminent 7.5 ml max. 3x/year
August Eminent 7.5 ml max. 3x/year
September Ortiva Plus
+ Sporgon Garden
10ml
10 gr
 

Copper-based products work preventively but are less efficient. Also please take into account that the phyto legislation changes frequently in Europe and not all products are allowed in every member state.