Mason Bees (Blue Orchard Bees) in action

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

Some images from this month’s activity of mason bees:

masonbeeonflower4
Today I was glad to see them active on my red pear which hasn’t produced well in past years.

 

A busy Mason Bee Morning

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

The warm sun encouraged a lot of activity around the Osmia lignaria boxes today .

breed3wide

 

Put Out Your Mason Bees when Pollinators are Needed

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

The time to put out your mason bees which have been overwintered in your refrigerator is when you need them to do their work. I release mine in batches.  The first batch was several weeks ago when the peaches and nectarines were in bloom. This week, the pears, plums and cherries are in bloom so I just put out  another batch of cocoons near my bee homes. I will save the last batch for my apple trees which bloom later.

2016-03-31 peachI had to transplant this peach tree this year to the corner of the vegetable preparation building so I found another good spot to place a bee home.

Mason bees always need good mud

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

Don’t forget to make sure that your mason bees can find a good source of mud while they are laying their eggs in your tubes.  I discovered a year ago that if you provide a reliable source within a few metres of the bee houses, they will use less energy to gather mud and will therefore be more efficient.

mason bee crawls into the side tunnel
mason bee crawls into the side tunnel

See this post I did. Another observation has led me to believe that they prefer to collect mud in horizontal holes in the side of a trench.  This trench is kept wet throughout the nest-building period, and I dig holes into the walls of the trench.  It is probably an adaptation to prevent predation, as they would be easy targets on an open patch of wet soil.  They also prefer “clayish ” mud, as any good mason knows that their mud needs to be sticky… Sandy doesn’t do it!

This year I gathered some freshly exposed clay and added it to my mud trench.

Holes drilled in clay for a mud source for mason bees
Holes drilled in clay for a mud source for mason bees

 

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.)

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.

 

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

 

Mazzzon Beezzzz Metchozzzzzzin

Well thats a takeoff on what I have decided to call my Mason Bee operation.. Its now MASON BEES METCHOSIN. Below are the latest versions of a poster and simplified yearly directions I have on a business card.

 

Scroll back through the mason bee postings to see samples of houses made from repurposed/recycled materials.

Note: I have created this 2017 posting to bring it closer to the other mason Bee information