Study and Susceptibility Status of Bedbug Cimex hemipterus (Hemiptera: Cimicidae) in IPB Darmaga Campus Area and Its Surrounding

摘要

Bed bugs infestation in the 1970s was considered disappeared, but since 2000s, re-emergence of bed bugs were reported from all over the world. The study of bed bugs infestation was carried in campus area of IPB University, Darmaga and its surrounding from October 2014 to February 2015. The study was aimed to determine bed bugs distribution and the degree of infestations, the biological aspect of bed bugs and their resistance to household insecticides. The bed bugs survey and collection were conducted in two types of residential areas i.e housing and temporary shelter. Housing divided into two types i.e complexes residential and densely populated, whereas temporary shelter were divided into four types i.e dormitories, boarding school, boarding house and guest house. Moreover, resistance of bed bugs were studied against three groups insecticides including organophosphate (malathion 5%), pyrethroid (deltamethrin 0.05%), and carbamate (propoxur 0.1%) by WHO method. The result showed that 64 rooms of the 244 observed rooms in all types of residential were infested by bed bugs. The only bedbug species found was tropical bedbug, Cimex hemipterus. The highest infestation found in student dormitory was 25.41%, while lowest was 0.41% and no bedbug infestation was found in other type residential. The mortality of bed bugs against malathion were the highest (87.50%) and the shortest LT50 (0.14 days). Furthermore, the mortality to deltamethrin was 21.43% with LT50 9.12 days, whereas in propoxur showed the lowest mortality (10%) and the longest LT50 (12.88 days). It showed that the bed bugs population in student dormitories in the Darmaga Campus area were resistant to three types of insecticides, especially to propoxur.