If you have bees with no wax comb, they need to get started quickly so as not to miss the flow in your area. If that's the case, you can feed them but at this time of year, be careful because the feed needs to be exclusive to your hive to avoid robbing and melee in your beeyard. To accomplish that, one way is to use Ziploc baggies.
Make up a syrup of 1:1 sugar to water, dissolved well. Pour this into a Ziploc Baggie. Place the ziploc directly on top of the frames in the hive. Put an empty super around the ziploc (or an Imrie shim if you have time/equip to build one). Take a sharp knife and slash two cuts in the top of the ziploc, being careful to only go through the top layer of the plastic. Make sure the baggie is lying flat on top of the frames. Close up the hive.
Check often. If the bees need to be fed, they'll run through the syrup really quickly.
Linda T in Atlanta