The peticide i use controles and kills them it has a good residual effect as well as an IGR it is proffesional use only. If the customer has pets DE can also be used in the pet beds. this is quite safe.
As Peter has yet again decided not to answer a direct question put to him (he has history for this), perhaps you would be kind enough to tell us what you use, where you get it, any restrictions and do you need any formal training in applying it? If you do need training where you get it?
Ok to answer your questions.
1) What do i use: Stingray ME
2) Where i get it: Killgerm or SX Environmental
3) Any restrictions: Yes there are restrictions it is a proffesional use pesticide you should not be able to buy it if you are not qualified.
4) Formal training in applying it: Yes you should should have some training in the safe use of pesticides.
5) Where to get training: Killgerm run courses also the BPCA and the NPTA as well as SX Environmental.
Hope this helps.