Your drip irrigation may not have wide enough coverage and some area could be dried out. Try to soak the soil. Also did you fertilize recently and how evenly was that?

My drip line run two circles around the bush it covers about a foot perimeter around the bush. I think I could probably mulch a bit heavier as well, it wouldnt hurt. I could be losing some moisture to evaporation. I did fertilizie two or three weeks back also using the driplines. Thanks

There's Scorch and Shock. They look similar. Shock is bad. You need to dig up and get rid of the plants. Scorch is temporary and new growth will eventually grow OK. Google these two to compare and figure out what you have.

duplicate question is at http://forums2.gardenweb.com/forums/load/fruit/msg070854188957.html

see this thread

http://forums2.gardenweb.com/forums/load/fruit/msg0500584227592.html