Api Guard is a Thymol gel pack. A 1-1/2" shim is needed to raise the roof so the bees have access to the gel.
Api Guard is a Thymol gel. It is packed in a foil pack. The foil lid is peeled back and the gel pack is placed on the top bars of the top box of the hive. The gel pack is on for two weeks then another one is put on, for a total treatment time of 30 days. All holes are plugged and the main entrance is open. The slide board is put in on any Varroa Screen bottom boards.
It is important to put Api Guard on now, being it is temperature sensitive. If the daytime high temperatures dip into the 60's Api Guard becomes less effective.
Treating in early Sept is usually the best time to do it when daytime temperatures are still in the 70's.