acts against super Buchsbaumzünsler.Den we had not, but amounts of Dickmaulrüsslerlarven. This had taken root in all plants in pots on the terrace. The plants wither and wither, because the fine roots are abgefdressen. When repotting they discovered the pests. The plants must be watered with a relatively concentrated solution. There is relatively much needed solution. Help: Bulk Pack are cheaper. Read the watering instructions before buying. Specifying "up to 50 l" on the 400 ml pack is only valid for spray solutions.