Use 1 frame of drone foundation taken out and frozen for 24 hours once capped over. It can be returned as is and the bees will clean it up.
Starting on Mar 1dust with powdered sugar once a week for 5 weeks. Repeat inSeptember. Do it once a month in between.
Alternate: Dust with powdered sugar 3 weeks in a row, Spring, Summer and Fall.
Use Small cell foundation in brood nest
Always use screen bottom boards.
Use Hygenic queens: Minnisota, Russian or VSH.
Try Hopguard first. Only use Apilife, Apiguard or formic acid when needed. Do not use harsher chemicals (Apistan)
When checking for mites. put sticky board in for 3 days. If it has more than 60 mites that is 3000 in hive and it needs chemical control. Do not do chemical control during honey flow.
Sugar shake test: 2 cups of bees
- 1-5 monitor
- 6-10 treat in 1 week
- 10-20 treat now
- 21+ screwed
Real research shows sugar dusting does not work. It is effective for counting and knocking back a mite load but does not have long term effects.
I have had two experienced bee keepers say they are switching back to soild bottom boards. A study at Cornelll back in 2007 also showed screened bottom boards did not help. This is in direct contradiction to what everyone was saying 6 months ago. Yet http://scientificbeekeeping.com/fighting-varroa-5-biotechnical-tactics-i/3/ sites several studies where screened bottom boards do help against mites including studies by Delaplane, Ellis and Sammataro