Monitoring for infestations of German cockroaches (Blattella germanica) in homes and buildings is hindered by a lack of effective and practical attractants, but researchers at Rutgers University say a mix of extracts from apple and blueberry has proven highly effective in lab and field settings and could lead to more successful cockroach integrated pest management programs. (Photo by Martin Grimm, via iNaturalist, CC BY-NC 4.0)