search the Beediverse Blog


This is the time when parasitic wasps can produce another generation every week.  During the summer months, when temperatures  are higher than in spring and fall, these pesky little critters come out of the nest and search for new mason bee cocoons to parasitize.  I don’t know how, but these tiny adult wasps can make a tiny pin hole in the tube and crawl out and parasitize more bees.

Every July, when most bee eggs have turned into adult bees inside their cocoons, I gather all nests, set them under a veranda- where the ambient temperature is still warm.  I place two Highrises per net-bag (see wasp proof bags on my web site beediverse.com).  They sit stacked against the wall of my home until the end of September when harvesting takes place.

I find  that net bags are successful and keep out wasp parasites.  Percent parasitism is usually not more than 5%.  If you have had trouble with these parasites, you will be pleasantly surprised with the outcome.

Leave a Reply

Your email address will not be published. Required fields are marked *

*

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

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

Popular Posts

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[...]

More mason bee tray harvesting pictures from Frank

More mason bee tray harvesting pictures from Frank

January 24th, 2014

Thanks Frank for the great pictures.  This will help a lot of folks when they open up their nesting [...]

Nesting with abundance- Frank

Nesting with abundance- Frank

January 23rd, 2014

"Hi Margriet .. I'm a little late in sending you my usual "annual report" on the cocoon harvesting b[...]

What Mason bees are these?

What Mason bees are these?

December 10th, 2013

Hi,  I put out a box of 7mm tubes next to my normal 8mm  tubes for the Orchard Mason Bees or O[...]

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[...]

Dates of posting blog entries
April 2014
M T W T F S S
« Jan    
 123456
78910111213
14151617181920
21222324252627
282930