Mason Bee Morgue

So that’s what we call them when people drill holes into blocks of wood and then never clean them out. The result is an eventual loss of the colony from an ever increasing infestation of mites.

If you aren’t willing to look after and properly clean your colony every year in the fall, then you are not doing a service to help in pollination, you are harming it.

 

Phragmites Reeds for Mason Bee tubes

NOTE: I have updated this 2015 post in order to make it appear closer to the other mason bee information

Phragmites in estuary/marsh
Last years stems of Phragmites in estuary/marsh being harvested for mason bee tubes. It is important that this is done only before new shoots start to emerge.  I have a theory that this native Phragmites exists in this marsh only because the marsh was fenced in the early years to prevent grazing by cattle and sheep. It has been eliminated from most of the other marshes in BC by grazing (personal communication with Robert Prescott-Allen). The reason this marsh was fenced was that the plant Triglochin maritima  (Sea arrow grass) grows in the marsh and it is toxic to grazers.

(http://metchosinmarine.ca/gf/triglochin-maritima/)

“Seaside arrow-grass (Triglochin maritima) is a native plant found sporadically across Canada in saline, brackish, or fresh marshes and shores. This plant contains cyanogenic glycosides, which can release HCN during mastication by animals. Poisoning occurs primarily with ruminants, including cattle and sheep. The concentration of toxic chemicals increases during times of moisture depletion (Majak et al. 1980, Cooper and Johnson 1984, Poulton 1989).”

 

 

 

Parasites of Mason Bee Colonies.

  • NOTE: I have updated this 2016 post in order to make it appear closer to the other mason bee information

  • Occasionally I will take a sample of several dozen cocoons that are in cold storage and test them for viability. The longer they remain in storage before release, the more likely that some parasites will get a better head start.
  • SEE OTHER POSTS on this site for entries on Parasites

Once the temperatures are up on sunny days, cocoons placed out near their prospective homes will start cutting their way out of the cocoons and fly off to get materials to fill their own tubes for the coming year.  If there are remaining cocoons unopened after a week and a half of warm weather, then it may be worthwhile to check them for parasites. You can open a cocoon with a sharp box-cutter blade, carefully picking away at the tough cocoon. If the bees are healthy they will leave within a few minutes. You may encounter the following parasites and if so you should get rid of them.  I have included some here that I not quite sure about  as well.  These parasites are natural, but when, as with many monocultures  we concentrate many of one species together, the chance of pests finding a good place to thrive is increased.

frasse
The small black cigars are frasse, (insect manure.)

iNaturalist postings— Garry Fletcher, Metchosin BC

 

I have been posting my photos of different species I have encountered on the iNaturalist website.  Many are species I have found here in the Metchosin Community.

https://www.inaturalist.org/observations?place_id=any&user_id=garryfletcher&verifiable=any

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Mason Bee Homes Made by our Customers

NOTE: I have updated this 2015 post in order to make it appear closer to the other mason bee information

I will use this page to mount pictures sent back by customers who have made their own houses out of recycled materials or have set up experiments to test the materials.

 

Metchosin Biomass Study


The following is from the Goldstream Gazette, March 16, 2021

Metchosin study explores whether local insect populations follow global trends

A 2017 study found a 70 per cent decline in insect biomass over 27-year period in Germany

  • Mar. 16, 2021 6:00 p.m
  • Garry Fletcher (right) and Brenda Costanzo, a senior vegetation specialist for the B.C. environment ministry, stand by a Malaise trap set up on Fletcher’s Metchosin property. The trap is collecting flying insects that will help Neville Winchester, a University of Victoria professor, see what’s happening to local insect populations. (Photo courtesy Neville Winchester)

An entomologist has teamed up with 19 rural Metchosin homeowners to learn more about Greater Victoria’s insect volumes and see if the region’s trends match concerning ones emerging globally.

Neville Winchester, a University of Victoria professor and conservation biologist, receives around half a million flying insects that get collected from Metchosin properties every year. His study started in 2018 and will need about 10 years before he can start identifying the trends of what’s happening to insect biomass here.

“It’s really a biodiversity-driven project,” Winchester said. “Biodiversity is important to maintain ecosystem functioning and provide ecosystem services.”

The project was inspired by a 2017 study that found insect biomass had declined by 75 per cent over a 27-year period in 63 of Germany’s protected natural areas.

READ: Scientists decry death by 1,000 cuts for world’s insects

“We decided, ‘Hey we should start our own project and see if this is happening here in B.C.,’” Winchester said.

Metchosin was picked because of its “intact” natural areas and the interest from residents. Passive flight interception traps are set up to catch and collect flying insects. The citizen scientists then deliver the collections to Winchester every two weeks from May to October. The researcher splits the insects into about seven different groups and weighs the collections.

Winchester is establishing a baseline that will be key to seeing any trends that emerge over time. “Is it declining, is it staying somewhat stable or is it increasing?” he said.

Local insect populations are vital to the food we eat, the researcher said. “If insects started to drop out that were pollinators, who would pollinate food crops? If insects are dropping out, then that is not a good thing, so what are we doing to cause that or are there things we can be doing to reverse that.”

READ: Lack of bees, pollination limiting crop yields across U.S., B.C., study finds

The study is taking variables like weather, elevation and the area’s plant types into account. Winchester says a combination of factors will likely impact the insect population trends.

The professor meets regularly with each homeowner involved to talk about data he’s getting from their properties. Winchester said the Metchosin residents’ enthusiasm for the project means it’ll likely keep going for many years.

“They’re interested in the results and they’re interested in what’s happening on their property and what’s happening, in general in the district,” he said.

Winchester has spent much of his career in the canopies of massive old growth forests around Vancouver Island and the world — researching insect species and their ecological impact. The creatures may be small, but the role they play is not.“I think (people) care about it and they certainly should care about it.”

See an earlier story on this https://www.goldstreamgazette.com/news/new-uvic-study-to-track-decline-of-insects-in-metchosin/https://www.goldstreamgazette.com/news/new-uvic-study-to-track-decline-of-insects-in-metchosin/

Mason Bee Houses–Make your own

There are various values in the commercial community in regards to increasing the presence of Mason Bees as pollinators. Some items for growing Mason bees currently on the market tend to appeal more to the human than the bee, and people are willing to pay for these.

However in order to increase the populations of Mason Bees for our interests in pollination of our plants, more emphasis could be placed on providing homes that bees find favourable for their sole purpose: that of increasing their progeny.

At recent “Seedy Saturday” events, I have been encouraging people to use recycled materials to build houses and then to send back pictures of what type of structure they have come up with. Below are a few examples for a start.

A pill bottle with a hole for the bees to exit is attached to the water pipe
A pill bottle with a hole for the bees to exit is attached to the water pipe

 

I do have available for sale several of these 2 inch water pipes  with 2 dozen + tubes inside for $15.00.

NOTE: I have updated this 2016 post in order to make it appear closer to the other mason bee information

Articles on Pollinator problems

ARCHIVAL: This post has been re-dated from 2016 in order to position it closer in the blog to Mason Bee Information
 

  1. Unprecedented scientific report says bees and other pollinators are in dire need of help. From the Washington Post. February 26, 2016
  2. Press Release: Pollinators Vital to Our Food Supply Under Threat, Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, February 26, 2016

 

Peaches blooming in Metchosin so its Time for First Mason Bee Release

NOTE: I have updated this 2015 post in order to make it appear closer to the other mason bee information

Mason bees for sale at $6.00 per dozen:

peachblossom
Peaches in bloom, March, 2015
nectarine_blossom
Nectarine blossoms, March, 2015

I have put out my first set of Mason Bees from the refrigerator as the peaches and nectarines are in bloom. There are also a few honey bees working the flowers, but once the Mason bees are active, they are much more efficient at pollinating than honey bees.

I have produced away more of these cocoons than I need for my garden and orchard so see this page for information on purchasing mason bees: https://www.gfletcher.ca/?p=1

I am now selling mason bee cocoons $6.00 per dozen which you can  order and then pick up from my farm in Metchosin British Columbia.
e-mail garryf use the at sign gmail dot com, or use the e-mail form on the page linked above.

See other posts on this website on mason bees

Mason Bees (Blue orchard Bees) for sale in Metchosin, BC,

NOTE: I have updated this 2015 post in order to make it appear closer to the other mason bee information
2015-03-07 cocoons

I am now selling mason bee cocoons which you can  order and then pick up from my farm in Metchosin British Columbia. 

mason_bee_houseI raise my blue orchard bees in boxes like this, similar to a birdhouse without a front. The mud-filled tubes are complete, and they are still working on the open ones. The small compartment at the bottom, with a lid and hole in it,  is for depositing a handful of cocoons into when I remove them from the refrigerator.  This is done after their winter hibernation when I need pollinators for various fruit trees.

A section of 4 inch drain pipe can be used.A section of 4 inch drain pipe can be used as a mason bee house also.  A 5 cm.  overhanging lip at the top keeps the water out. I also have a limited number of Phragmites reed tubes for mason bee homes . They average 6 inches in length and can be packed horizontally in any container as long as it is waterproof.  Limited amount available at $5.00 per dozen.

 

masonbee
Female Mason Bee, ( Blue Orchard Bee) raised in and native to Metchosin BC.

See other postings here on Mason Bees :

Contact: garryf use the: “at sign” gmail dot com