got done spraying RU a week ago, hay was looking good and now today I see some of the weaker spots in the feilds are turning yellow.  Checked and sure enough its aphids.  Get to hook up the sprayier and go do about 160 ac on thursday (have to go get "Transform" tomorrow.  Iv used it in the past and seam to work better then anything elce Iv used.   it is a little more expensive at 14 bucks a ac but does have a little longer life.....