Hello. From the morphology, the insects in the attached pictures seem to be Oriental cockroaches (How to get rid of Cockroaches, Oriental species). In this case, it is recommended to carry out a first treatment with an insecticide spray such as . The solution is prepared according to the recommended dosage (10 g/10 L of water) by dissolving the appropriate amount of insecticide in the desired volume of water. The solution obtained has a shelf life of 24 hours, so it is not recommended to keep it for longer. The application should be done by spraying on the surfaces that the cockroaches cross, following the recommendations on the label. At the time of application and within 4-6 hours, children and pets should stay away from the treated area. After the application of the solution, the premises will remain closed for a period of 4-6 hours, during which time no person should remain inside. After that, enter the room, ventilate, vacuum and clean the sensitive surfaces.
24 hours after the application of this treatment, during which time the insecticide acts as a biocide, to remove the nest (or potential nests that have not come into contact with the surface to which has been applied), it is recommended to apply an insecticidal gel such as , as recommended on the label.
Also, for monitoring, the use of a trap such as , is recommended.