I had MAQS fail in atleast one of my hives this fall. I want to see if anyone else has idea's or if my logic sounds right
I have only done sugar rolls on my big hive in the last month, I am assuming that all 4 of my hives are similar and they are all getting treated at about the same time.
- on july 12, did sugar roll and found 0 mites
- on august 16 did sugar roll and found 5 mites in about 1/3 cup of bees
- on September 22 added 1 MAQS strip between boxes 2 and 3
- on September 29 I did a sugar roll and found 9 mites in about 1/3 cup of bees
- on October 8th moved top feeder from another hive onto this hive because the other hive stopped taking syrup, the feeder was half full and the other had 2+ mediums of capped stores
- on October 10-11 had a cold front come thru and temperatures dropped from 70's during the day on the 9th to 15ish during the night of the 11on October 6 added 2 MAQS strips, one between boxes 2 and 3, and one between boxes 3 and 4
- on October 13 did a sugar roll and found 14 mites in about 1/3 cup of bees
- on October 13, after thinking some more decided to put 2 more MAQS on the hive between boxes 4 and 5. I did not want to open up the hive completely again and disturb them a lot again.
Right now this hive is sitting at 5 boxes, a deep on the bottom and 4 mediums on top of that. The bottom 2 boxes are mostly empty because the brood nest was in those boxes all summer, the hive was doing well and did not fill them. The 3rd box is completely filled with capped stores. The 4th and 5th boxes are about half filled with capped stores, but it is mostly half filled frames so I can not really combine these boxes into 1 and combine the stores very well.
I had a quilt box on this hive all summer and thru the entire treatment with MAQS until October 8th, when I put a top feeder (mann lake) between box 5 and the quilt box. I am thinking that the quilt box on top allowed to much air flow and the formic acid fumes were not strong enough to kill the mites. I am going to check the hive again this weekend and probably start OAV, since the MAQS didn't work. It is way later in the season then I wanted to be dealing with high mite loads.
A few other notes:
- The MAQS expired in august, but I figured they were still fine in September.
- I wanted to treat earlier, but the weather has been so warm there was not a good stretch where it looked like it was going to stay below 85 for a few days until mid September.
- This hive (and all others) survived the cold snap, but this one is not looking as strong as I would like.
- My other 3 hives look better, but I need to check the mite counts in them. One got OAV in august because it was high, and the other 2 are new splits. All 4 hives got MAQS treatments.
- There is white junk on the inside of the top cover above the quilt box that was not there before. I put a chunk of zinc plated steel on the inside of the top cover with the logic that any condensation on the cover will run to the front and drip off there instead of back into the middle of the quilt box. The top cover is tilted from back to front a bit.
Does the assumption that treating with MAQS with a quilt box on top and a large hive caused the MAQS to fail sound right? Does anyone else have any other idea's what is going on with this hive?
edit to change formating