author(s)
Resti Rahayu, Wulan Rahfi Madona, Weni Bestari, Dahelmi and Robby Jannatan

abstract
The resistance to commercial insecticides has been developed to German cockroaches, it makes more difficulties to control all of them. The monitoring of insecticides resistance can be used as reference to evaluate the control of German cockroach population in the future. The aim of this study is to determine the resistance level of commercial insecticides by Tarsal Contact Test and Spray Test. The insecticides that used in this study were five commercial insecticides contain the active ingredient, Pyrethroid. The field cockroach populations were collected from Jakarta and Padang, the standard population cockroach is WHO standard. The resistance levels of German cockroach were from low until very high resistance to commercial insecticides. The German cockroach was high resistance used Tarsal Contact Test and very high resistance used Spray Test.