Sibylle and Wolfgang Kempf, Germany: Erik Österlund made us welcome at his home and in his bee yards when we visited with him in July 2018. I had asked him for an insight into his resistant breeding project to get
Sibylle and Wolfgang Kempf, Germany: Erik Österlund made us welcome at his home and in his bee yards when we visited with him in July 2018. I had asked him for an insight into his resistant breeding project to get