In the garden next to berries and trees we have disposed of the book, because I do not want to inject because of the children. But the hedge on the road I want to keep. And it works.
Since last year, the corn borer in Mannheim - and every time I see that it begins somewhere to nibble, there is a charge to the book Calypso. Is 2-3 times a year the case. Works great.
Other things (soap etc.) We have previously tried, of course, but against the corn borer affects only Calypso.
The 400ml I process about 20 liters of broth. With 10 liters of broth I manage about 8 feet beech hedge. Not only go inside from the outside, but beautiful inside in the hedge, the critters want to be fogged clever, otherwise it does not work enough.
And: start right away when you see them. Do not wait even one-two days ... which are like the wind.
I Wish You Success!