GUEST LECTURE NOTES Flashcards
(35 cards)
Bees pollinate how what fraction of leading food crops?
2/3rds
How much money do bees provide to Canadian ag?
5billion ish
What is the leading issue with pollinators in Canada moving forward?
unsustainable overwinter colony loss
45% mortality in 2022
Spore count in honey predicts ____
risk of developing AFB in the future
Potentially, how much can we reduce antibiotic usage using risk assessment?
by as much as half- stop treating every colony
There is a possibility of using ___ as an alternative antibiotic for EFB - to lessen clinical severity
propolis
What is the new research concerning OA concentration 5, 10 and 20x the reccomeneded dose?
only had significant effects on mortality at 20x the normal dose
- not significant but definately higher mortality in brood (24%)
_____ exposure decreases sperm count and viability
Amitraz
What is significant about local bee stock?
generally more productive than foreign ones
Neonicotinoids affect what glands in queen bees and how?
Very high doses of neonicotinoids will reduce size of mandibular glands which assist with pheromone production in queens - unsure the affect that actually has
doing research on a single bee does not count as research for the _____
whole colony
What is the difference in ability to handle pesticides of the three castes when exposed as larvae
Queens significantly affected even at lower levels but drones and workers remained largely unaffected even at high doses
Why are bees often starved before pollenating apple trees
they are a poor nectar source so the bees need to be vigilant and hit alot of flowers
What is perfect apple pollination?
10 seeds
why is kiwi leaf area maximized?
because it makes them taste sweeter!
why must bees be in climate controlled containers when in transport for packages
because bees generate alot of heat - need cooler temperatures because they will elevate temps which will be lethal if it gets too hot - must be well ventilated but not heated on planes
what makes manuka honey special?
jelly like not thick (one of two types of honey that do this) - varying medicinal and magical powers (bullshit)
what is important about the fall bee population
the better the population in late fall the better your population will survive thru the winter - even with antibiotic treatments
what makes Saskatchewan different than other locations in terms of bee management
bees as pollinators is less of a focus because canola honey has such high yields
what makes the English speaking world different from the rest of the world in terms of bee health?
English speaking world had not historically used veterinarians to deal with pathology
Role of the provincial apiarist?
many roles - disease surveillance and interprovincial transportation, statistics for govnt, provincial apiarist report
Saskatchewan is the most productive place in terms of honey weight in the entire world
What is the trend for the past ten years regarding bee mortality?
mortality is significantly increasing each year - but sask still does significantly better than alberta and manitoba
Why can we ignore viruses in bees?
because there are no available treatments for them - treat varroa and the virus levels will decrease themselves - pretty much every virus is vectored with varroa
