search the Beediverse Blog


Daily Archives: June 24, 2012

Osmia californica comes out late in spring, often their emergence overlaps the latter end of the Osmia lignaria (early spring mason bee) season.

However very little is known about them.  If you’d like to share your photos of Osmia californica, please email them to me and I will get them on this blog.

It is the 3rd week of June and Osmia lignaria the early spring mason bees, and of course Osmia californica have stopped flying.  They have left their offspring behind, and hopefully few parasites and predators will get to the developing larvae by next spring.

I have received a lot of interesting emails with photos that I want to share with you.

People are sending more detailed notes of their observations – all very interesting.

I have had relatively good news from the majority of mason bee producers.  It seems there was enough reasonable good weather for good production along the west coast of NA.  Of course, raccoons, flickers and ants have taken their toll.  But overall, production will be adequate for replenishing their nests next year.

People are trying out different types of nests, bee attractants and different ways of setting out bees and protecting them from the weather.

I find this bee attractant very interesting although I have not heard whether it has been properly tested by scientists (as yet).

Here in BC rain and cool weather has been a large part of June.  I am curious whether, there has been enough warmth for bee larvae to feed and develop into adult bees.  In the fall when I open nests and examine the contents, I will be looking for the proportion of pollen lumps.  If the percent pollen lumps is greater than  5%, it usually indicates  cold  and damp weather.  Bee larvae have died of starvation because they were too cold to feed.

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Popular Posts

Parasitic wasp of mason bee cocoons

Parasitic wasp of mason bee cocoons

December 10th, 2013

Margriet, Can you verify that this picture is a Parasitic Wasp (or not)? Thanks. Valeri W[...]

How many mason bees do I need to pollinate my small orchard.

How many mason bees do I need to pollinate my small orchard.

December 28th, 2013

A question from Gary, WA.  "Approximately how many bees do  I need to pollinate  17 fruit tr[...]

What mason bee is this?

What mason bee is this?

December 10th, 2013

Hi,   I have a number of bees at one of my houses this year. I’m familiar with the Blue one but [...]

Optimize your cocoon production by candling

Optimize your cocoon production by candling

December 11th, 2013

Here is something else to do besides cleaning and preparing for spring.   A nifty conversion of a 6v[...]

Happy Holidays!

Happy Holidays!

December 22nd, 2013

It is holiday time.  We travelled   into the Interior of BC after a snow fall and during a cold snap[...]