Although it has a tendency to swarm ​ — a trait that can make large - scale beekeeping more difficult — ​ this inclination has been reduced through selective breeding.
Kraini mesilastel on küllaltki suur sülemlemistung – omadus, mis teeb laiaulatusliku mesilaste pidamise keeruliseks –, ent seda tungi on tõuaretusega vähendatud.