Treated my two hives with Oxalic acid on January 10th- 55 degrees day. It was so warm early that my main hive was overcrowded by March. I did a split on April 2 and added a queen cell from a local breeder. Doing well as of April 27th Captured 2 swarms on: April 1st, 2016-viable and doing well as of April 27th, 2016 April 10th, 2016-added mature swarm cells on April 20th from main hive to this queenless swarm. Still active but watching for signs that the cell formed a viable queen and she mated. I have not checked since we have had cold rain for the last 3 days with plunging nighttime temperatures. Feeding syrup
RESPONSE – Mid April for queen mating is iffy some years. With queen cell requeening we should have positive signs (eggs at least) within two weeks, three at most. If beyond that then it might be best to combine (if there are enough bees to make it worthwhile). Thanks for sharing – hope that requeening event went well like the earlier one.