Hi Bonsai ka ?

I called a specialized Nursery and the School of gardening this is whyt
tehy said
the very first treatemennt I applied cupper sulphate and Veralin D are good
especially as injected in the holes
the second product I have in stock : Marshal is even better and adviced after 3
weeks ( from this one )
this Marshal ( a swiss brend ) for coleopters and larvaes can be sprayed and
also put as watering ( mixed)
will be absorbed by the roots and nuke the vermine wrom the within as in the
wooden fibers they eat !
Ouf
I feel better !
Thanks
again
Theo