Thursday, December 28, 2017

Hapbee New Year


     To everyone I wish a very happy and healthy new year to you and your loved ones (including your bees).  May your bees survive the cold of winter, develop a resistance to Varroa and other pests, be free of all diseases and produce buckets of honey.
     Please don't drink and fly!




Sunday, August 20, 2017

The Effects of a Solar Eclipse on Honey Bees


     With a solar eclipse scheduled for tomorrow morning (beginning at 9:10 am, reaching it's maximum at 10:21 and ending at 11:37am in Vancouver) and the obvious concern for eye safety I wondered how bees and other critters coped with this phenomena.  It appears that unlike stupid humans animals generally don't stare at the sun so don't suffer from the damaging effects of the sun on eyesight.


       As for honey bees, studies like the one above from HOBOS honey bee research in 2015 show that foraging bee activity is decreased during an eclipse as it would be at the normal setting of the sun.  "The reduction in flight activity commenced as soon as the brightness was lower than 400 watts/m2. Only as the re-emerging sun reached a brightness of 400 watts/m2 did the bees’ flight activities begin to increase once more. The bees also reduced their flying ventures in the evening when the brightness level falls below the 400 watts/m2 mark."  Similar conclusions were drawn in a 1957 study of Apis Dorsata in India (Behaviour of Apis Dorsata during a partial solar eclipse in India).  I'm relieved I don't have to look for solar eclipse glasses for my bees.


Thursday, July 6, 2017

Fire at our Community Garden

Photos by Mary-Ann Charney
     On Tuesday night we had a fire at our community garden (Cottonwood) in Vancouver.  Unfortunately the fire consumed our greenhouse and beekeeping/tool shed.  Arson is suspected. We lost everything including ladders, pruners, construction tools, weed eater, irrigation supplies and all of our beekeeping equipment which we had accumulated over many years (including my favourite 40 year old smoker). This also includes our community honey extractor and honey harvesting equipment which we lent out to the public and the protective clothing we used for our beekeeping classes.

No AFB there
Our honey extractor
     It is difficult to remain optimistic in the face of continuous vandalism and theft at the garden but it is a reality of gardening and beekeeping in a public space.  It is important to remember that 99% of the folks that come to our garden love and appreciate it and we can't let the acts of a few dictate the future of our beautiful garden.

     Cottonwood Community Garden 25 years ago.
 

     Cottonwood Community Garden today.  Built on a former dump site 25 years ago by a group of guerrilla gardeners this 4 acre oasis is a home to birds, bees, skunks, raccoons, squirrels, coyotes, frogs and over a hundred humans.  The city has proposed construction of a freeway through the middle of the garden.  Friends of the garden have proposed alternative sites for the freeway.  The future of the garden is in jeopardy but we are hopeful.  This video was taken on the 20th anniversary. 


We will rebuild and we will persevere.

     Remembering the good times.
Extracting honey in the bee shed
*  We have started a fundraiser to rebuild and restock our greenhouse and bee/tool shed. Any donation no matter how small is appreciated.  To donate by credit card go to "Cottonwood Fire" or you can donate by credit card or paypal on the top of the page on the sidebar.  You can receive a tax receipt with a donation of $25 or more.  Thank you.

Saturday, June 3, 2017

Bad Nuc Rant


     The last few years I have observed an abundance of bad bee nucs for sale in the Vancouver area. Last year a number of beekeepers in our beekeeping coop bought nucs from a local retailer, all of which contained swarm cells.  As a result all of the nucs swarmed within the first week creating smaller nucs and very small swarms.  The owner of the company explained that the nucs were made by inexperienced workers who improperly made the nucs with swarm cells and newly introduced queens.
      This week a few nucs were bought by beekeepers in our organization from another beekeeping supply retailer.  The nuc boxes had scotch tape on the entrance (half attached), the lids were not attached, the brood comb was black (old) and the nuc boxes were older.  The nucs contained 2 frames of old, spotty brood, 2 wet frames, a queen cage and no laying queen.  Both of these retailers are good, knowledgeable beekeeping suppliers and the criticism is directed more towards the lack of long term bee breeders not the bee retailers (though the argument could be made that you are responsible for what you are selling).
       The bottom line is that we have a very poor, unsustainable honey bee population in greater Vancouver with most of the bees produced done so for a quick dollar rather than creating a legacy of strong, survivor stock.  Mark Winston, an SFU professor, biologist and beekeeper produced a study 30 years ago that suggested it was economically feasible to produce honey bee nucs and packages in the Fraser Valley (Package and Nucleus production in the Fraser Valley).  This potential has not been realized and instead we have become dependent on imported packages and poorly created nucs.  Good breeders in our area produce relatively few nucs and queens that don't begin to match the demand. Part of the reason is the extreme property values that make beekeeping not economically feasible in the Greater Vancouver area.
       Beekeepers ask me constantly if I can recommend a good bee nuc or queen source and I can't because the good sources are sold out before the bees are ready. If anyone knows of a good source of bees let us know. Bad nuc rant over.



Saturday, April 29, 2017

La Nina Beekeeping

   
     The La Nina weather pattern is cooler than average sea surface temperatures in the Pacific Ocean (3-5 degrees C.) resulting in colder temperatures and above average precipitation for us in Vancouver.  We have experienced these conditions through the winter with record snowfall in the local mountains and this weather pattern has continued through the early part of spring.

   
     As beekeepers we are always acutely aware of the temperature and rainfall and it's effects on our bees foraging particularly in the early spring.  This is a time of great potential brood development with the fruit trees in blossom (pollen) but because of the wet, cool spring both brood development and fruit production will suffer this year.  Although our bees will collect pollen and nectar at colder temperatures we don't get major colony foraging until it's 12 C. (53 F.) and sunny.  In Vancouver we have positive and negative honey bee food accumulation months.  This will vary on your specific location but for our urban apiary the positive months are April 1 through to October 1 with March and October dependent on weather conditions.  This year both March and April were negative.


        How does this effect spring beekeeping management?  For those who supplement their bees' diet feeding of both carbohydrates (sugar) and protein or protein supplement (to stimulate brood development) will be more important.  Keep in mind that below about 12 C. (54 fahrenheit) the bees won't take a liquid syrup as they are unable to process it (Feeding Bees in Winter).
       In order to carry out spring management we must assess the health of our hives.  Many sources (mostly southern) will insist you cannot inspect your frames until 15 C. (60 fahrenheit) for fear of chilling the brood.  Some northern beekeepers would have to wait til well into May for this.  Bees are hardier than most people think.  Peeking briefly into a hive during winter on a non snowy day to assess the food supply is fine as is inspecting the brood at 10 C. (50 fahrenheit).  Use common sense and minimize exposure.  This from the Huron City Bee Company in Michigan,
"How cold is too cold to inspect my hive?"
I hear this question quite often at this time of year. Let me just say, I was late one year and needed inspection papers to transport my hives. So, one January morning, at 28 degrees, the state inspector and I opened the hives and inspected brood frames VERY quickly. The result was no detectable loss of brood. We didn't stand around, and we didn't chat while the hives were open. We worked smoothly, so as to disturb the cluster as little as possible. And we closed them up as quickly as we could.
On the other hand, I've helped with inspections on a 70 degree day, where the beekeeper took out a frame of brood, stood it up and chatted for 20 minutes about what they found. Then later complained about chilled brood.  See where I'm going with this?  Go in, do what you need to do, and then get out quickly.  However, I want to temper this advice with another question. If you DO find something wrong, what's your plan?  Here in Michigan, it's 42 degrees right now. I wouldn't hesitate to pop open the hives. But, to what end? It's too late to replace a queen if I find one failing. The only thing I can do at this point is combine, and even then, they may remain clustered instead of merging.  The take away message is not to be afraid of opening the hives. But, if you have no courses of action if you find something wrong, why bother?"  I think this is a good year-round philosophy.  I go into my hives with a specific purpose and only when required for responsible colony management.
       For us in Vancouver that means we should be able to do a full inspection by March to assess the queen performance (brood pattern), presence of disease (continued excessive bee poop on hive) or mites (small hive beetle has arrived - Honey Bee Diseases and Parasites) and food supply (B.C. Government Spring Management).  Some of the spring beekeeping chores are: The cluster should be in the upper super so reverse the brood boxes; maintain a reduced entrance to prevent robbing or mice visits; optionally equalize the colonies by adding frames of bees of a strong colony to a weaker colony (Equalization of bee colony strength); cull your old foundation if you do so (Replacing brood comb); swarm prevention (checkerboarding, splits ... ) ;  maintain good ventilation and empty your bottom board of dead bees and debris.  In this article Randy Oliver and Dr. Medhat Nasr (Alberta Provincial Apiculturist) discuss the benefits of early season mite control through the formation of nucs with queen cells and the treatment of those nucs (Early Season Mite Management).
       I have been warned of the presence of nosema in some of this year's New Zealand packages.  Whether that is true or an attempt to boost the sales of fumagillin it's always a good idea to watch for signs of nosema (difficulty digesting food).  Nosema is difficult to diagnose without laboratory equipment (Nosema Assessment).  Some suggest a nosema infected midgut will become swollen, whitish and lose it's visible constrictions (a healthy midgut is tan with visible constrictions) but that is also true of other causes of dysentery.  Symptoms that may suggest the presence of nosema are the lack of population buildup as nosema infected bees tend to skip the nurse bee phase and become young foragers, dying at a young age.  Desperate they will forage at cooler temperatures and will not take syrup if fed.  This from Randy Oliver, "Perhaps the most noticeable effect of N. ceranae infection is the lack of population buildup of infected colonies, due to the premature death of infected foragers. Of interest is that nosema-infected bees tend to forage at cooler temperatures. Woyciechowski (1998) suggests that infected bees may engage in more risky foraging behavior, perhaps sensing that they do not have long to live. Additionally, infected bees may simply fly off to die, exhibiting an “altruistic suicide” to help prevent the infection of nestmates (Kralj 2006).  Another symptom, reported by several, and described by Bob Harrison on Bee-L, is that of bees not taking syrup, and then massively drowning in division board feeders. Bob feels that the symptom of going “off feed” is a good indicator for N. ceranae infection, which can be reversed with a drench of fumagillin syrup.  The drowning behavior may have an explanation in a recent paper by Chris Mayak (2009), in which he found that “N. ceranae imposes an energetic stress on infected bees, revealed in their elevated appetite and hunger level…. infected bees attempt to compensate for the imposed energetic stress by feeding more…” Mayak suggests that such hungry, nutritionally stressed bees, exhibiting risky foraging behavior, might play a role in the depopulation of infected colonies."
        Due to the cool, wet La Nina weather plant development (blossoming) and our swarm season will be delayed by a few weeks.  Other aspects of beekeeping like split creation and queen and local nuc availability will also be delayed.  Also, it appears the price of nucs has risen this year to $225-$250.  The delayed blossoming of plants may create a stronger late season September-October food supply for our bees.  The Weather Network predicts a cool, wet spring and a warmer summer than last year.  "Some years there are strong signals in the global pattern that allow for higher confidence in a seasonal forecast, but unfortunately this is not one of those years. During the next few months, one of the keys to our final summer forecast will be the strength of the developing El NiƱo and whether the warmest water remains just west of South America or whether the warmest water shifts west into the central Pacific."  The La Nina weather pattern can last for a few years but hopefully it will be replaced soon by the warmer El Nino phase.  We'll keep our wings crossed.

  

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