I would spray a dormant oil this winter,I'm not familiar with talstar but you may have controlled them already unless you're seeing new damage. Azaleas don't shed their leaves too much so the tan color will be there until those leaves shed. Fertilize them after bloom and check again month or so later. If they're planted in full sun tell your customer to always expect to have problems.
[Edited by Toddppm on 11-08-2000 at 11:22 PM]