Im Jahr 2012 war Dirk Fietsch im Botanischen Garten in Edinburg zu Gast. Der Gegenbesuch in Dresden fand im Mai 2013 statt – eine der arbeitsreichsten Zeiten im Garten. Pat Clifford vergleich in seinem Bericht die Gärten, und berichtet begeistert. „Pest-control“ ist ein wichtiges Thema. Dazu berichet Pat: It won’t be easy though as in my experience many people have a very false idea of how tropical plants look in the wild i.e. perfect. Fortunately both the public display houses I take care of in Edinburgh have large ponds containing lots of fish which rules out the use of pesticides, so I only use bio-control and I’m sure that Dirk and I learned some valuable tips from each other over the course of the exchange. One of the more novel bio-controls is the use of Asian Dwarf Quail, which undoubtedly must reduce the cockroach numbers significantly; I fell in love with them and really want some in Edinburgh