Below you can find important dates of when the latest date to apply specific treatments and be on time to place honey supers on your hive and not have issues of chemical residue in your honey.
Chart is based on applying honey supers on May 16. (Approximate date for Eastern Ontario)
(Date may vary based on location and how early or late spring comes)
|Product||Treatment Period||Withdrawl Time||Latest Date To Apply|
|Apivar||42 days||14 days||March 21|
|Apistan||42 days||0 days||April 4|
|Bayvarol||42 days||0 days||April 4|
|Check Mite +||42-45 days||14 days||April 1-4|
|Formic Pro||14 to 20 days||0 days||May 16 (because supers can be on)|
|Hop Guard II||30 days||0 days||May 16 (because supers can be on)|
|Oxalic Acid (Drip)||Can only be used in the fall||November when consistant 5C day temperatures|
|Oxalic Acid (Vapor)||3 times every 5 days||15 mins||Apply anytime above 3C(37F). Use a divider between brood/supers.|
|Oxytet||3 times every 4 days||4 weeks||April 4|
|Tylosin||Can only be used in the fall||After super removal in the fall|
Remove honey supers approximately the long weekend of September or at the latest the 2nd weekend. Use any of the treatments in the list above.
Final clean up with Oxalic Acid drip or vapor is best done when the day temperatures remain around 5C.