Effect of Fumagilin-B treatment timing on nosema colonies under winter management in the Canadian Prairies

-

 Although treatment in either the spring or fall did reduce nosema abundance in the short term, it did not eliminate the infection, making continued monitoring necessary. Colony strength was improved by spring treatment in some locations but not consistently, possibly due to the treatment timing or low dose. The combined spring and fall treatment increased colony survival over winter in one of 2 yr. Wintering method did not interact with treatment to affect nosema abundance in the spring. There does not appear to be a significant residual benefit of fall treatment as it did not reduce spring nosema abundance or increase colony population. Therefore, spring treatment should be applied to reduce spring V. ceranae abundance rather than relying on residual efficacy from previous fall treatments.

Link to abstract

Comments

Post a Comment

Popular posts from this blog

Homemade powered sugar initiates a natural grooming response from the honeybees

-
 " Normal and acceptable mite loads are 3 mites per 100 bees.   My hives have 3 mites per  200 bees .  Yeah. The county inspector said to keep doing whatever it is that I’m doing.  This stuff works. " This  article  has three techniques for controlling varroa mites without chemicals: 1. Split your hives " when you “split” a hive, you are dividing a well-established beehive into two or three new hives.  By doing this, the “mite load” will be split 2 or 3 ways. " 2. Eliminate Drone Cells 3. Powdered Sugar " As they clean the sugar off of themselves, the varroa mites are naturally dislodged and drop to the bottom of your hive.  "
Read more

Pests and diseases should always be seen and welcomed as friends and allies, not as adversaries to be destroyed.

-
 This guy's site has tons of articles to educate others how to raise bees in a commercial environment, without using any pesticides or chemicals.  Very interesting https://kirkwebster.com/ Here's an excerpt from one of his articles: " Despite two years of terrible weather, and no treatments of any kind since 2002, the stability and resilience of the apiary continues to slowly improve. The cycles of collapse and recovery (now caused primarily by extreme weather rather than by mites or diseases) in the end help to build the apiary rather than tear it down. Doing the queen rearing work during the rainy summer of 2009 was not as pleasant as other years, but the results were surprisingly good, and the colony count grew from 340 to 1000 during this time. (Remember, many of those colonies are nucleus colonies intended for overwintering.) The last cycle of brood was very healthy looking, and only about 20 colonies were deemed non-viable and blown out in December. Severe weather ha...
Read more

For my reference: Beehive and Bee resources

-
 Beehive parts:  https://galenafarms.com/collections/super-boxes/products/nubee-10f1s Overwintered nucs in Indiana:  Nucleus (NUC) colony includes overwintered mated laying IHB stock queen, 4+seams of bees, brood in all stages, 5 frames, adequate resources, typically a Jester EZ nuc, Treated for VM or below treatment threshold. Pick up only, likely be May 10th, depending upon weather. https://indianahoneybees.com/
Read more