Now. If they are light and apt to starve. Otherwise, don't you think they are getting what they need from the sugar cake? Which might be enough until nectar starts coming in from maples and other sources.
They'll keep eating sugar until a nectar flow starts, then they'll prefer the better food.
Unless you have reason to believe that your bees are running out of stored food, or you have a new hive and are stimulating wax production to get them to draw comb, it's not necessary to feed in Spring.
They are pretty light. First year hives and it was a rough year--too wet most of the year, two dry part of the year, and a very cold winter. I didn't think we had nectar yet. I didn't know they could use maple for nectar. They are bringing in yellow pollen. My first winter with bees. Also I'm hoping to split one of the two pretty early.
Thanks. I'll stop feeding. I checked them this evening. Think the population is building up fast. Also the Henbit is starting to bloom. Sometimes have a few hundred acres within a mile or so. Not sure if there's much this year but the maples are blooming for sure. Also willows right beside the hives. I think it's really Spring!
Too windy. Couldn't get the smoker lit. They were in a bad mood, so couldn't check their condition very well
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