The segregation comb is made of acid-proof stainless steel. It is used to remove cocoons from the culture patch. This solution speeds up the extraction of cocoons by around 10 times. The extraction of cocoons is aimed at segregating healthy cocoons from those infected by parasites, that is why we remove the infected cocoons from eg the tweezers and then remove them healthy with a comb. Lack of segregation can lead to infection of the entire bee population by parasites within 3 years.