Jason Hansen - Apiary Inspection -09/29/2019

Apiary Inspection and Colony Evaluation



Inspect apiary condition and perform health analysis on each colony. Four hives were inspected and mite rolls were performed on colonies on opposite ends of the apiary. Also, the weakest hive was tested for nosema under microscope.

Findings were that each colony seems to be in good condition with generally healthy bees. The closest end colony was very strong and the other three seemed to be decent, but in need of additional stores. Continued feeding until cold weather hits is key to help them build up.

Discontinue the feeding of high protein pollen patties. If any feeding is desired, use low protein to avoid premature buildup of population (we don’t want them growing too big for resources available).




Continue to supplemental feed each colony 2:1 sugar water. Consider adding stimulant to the syrup such as ProHealth (https://tinyurl.com/y3j5a7be) and Tea Tree Oil (https://tinyurl.com/y3gy9vsd) to the sugar water to aid in overall bee health.

One tablespoon of ProHealth to each gallon, and several drops of tea tree oil. Feed to bees until they stop taking, or until temperatures drop below 45 consistently during the day.

Treat For Mites


Findings: During a mite sugar roll, it was found that the mite count was on the threshold of a larger infection of 5-10%. Immediate steps should be taken to lower the mite count.

Recommendation: Use Apivar (https://www.mannlakeltd.com/apivarr) strips in each colony. Two strips per brood box. Place several frames apart diagonally from each other to ensure proper coverage. Leave in the hive for 35-40 days to catch full brood cycle.

Application Video: https://www.youtube.com/watch?v=YAdtnVjJlv4

Treat For Nosema:


Findings: Upon inspection under a microscope, it was found that that there is a mild infestation of nosema spores. In other times of year, this might be corrected by the colony without intervention, but because of proximity to colder weather, steps should be taken to combat.

Recommendation: Fumagilin-B used to be the normal treatment for nosema, but unfortunately the manufacturer suddenly stopped production in 2018. Just released is Fumidil-B (https://www.mannlakeltd.com/fumidil-b-500-gram-bottle) . Compound is to be mixed with 2:1 sugar water.

Since it is so new, I do not know the proper application but suspect it’s similar to Fumagilin-B. Please follow instructions on bottle.


OAX Treatments


Going into the winter, plan on doing an Oxalic Acid (OAX) treatment several times. I like to remind myself by scheduling around the major holidays:

  • Thanksgiving

  • Christmas

  • Martin Luther King Day

Remain flexible when scheduling and try to find the warmest day to perform the application. Typically anything over 54-55 degrees is ideal.

Application: 1 gram of oxalic acid per brood box. If you have screened bottom boards, add a sightly bit more to accommodate loss through the bottom.

Winter Covers


Use winter covers packed with cedar wood chips. Ventilation is very important so ensure that the winter covers have vent holes that allows damp air to escape. Many different designs exist, but I prefer tops that have burlap base with four vent holes.

Jason Kardong