broad mites! babies died after treating with avid.

wassup everyone....of course i have a confirmed case of broad mites. i treated today with avid. seems after i sprayed then with atomizer...a few babies have suddenly died. they wilted over and as a look of being overwaterd but pretty much wilted prettt bad. never have seen babies die after treating with avid. im thinking it could be a combo of being stressed from the broad mites and then the spray just did them in. was wondering if anyone has experience the samw thing. or could this be something else as in root aphids. i dumped out the dead ones and did not see anything moving in the soil.