Jake from M writes
It appears Zenprox only has a 4 day residual effectiveness.
Zenprox EC Insecticide is labeled for carpet beetles, however for indoor carpet beetle control you may want to consider a product such as Nyguard Plus. This product contains an insecticide to kill the roaming adults and an insect growth regulator to stop the harder to kill immature beetles from reaching a reproductive state which in turn will break the cycle of infestation. As an added bonus this product also contains a deodorizer for carpet applications.
Answer last updated on: 01/06/2020