My name is Dr Margriet Dogterom and am the founder and owner of Beediverse. I write this blog for all who love bees and who want to learn more about these wonderful creatures.

 Hello,
It July 8/12. Is it too early to put a cloth bag over  mason bee boxes to keep out predators?
We are in Comox, Vancouver Island. – Margaret 
Hi Margaret,
Yes it is time, BUT some bees may still be flying!
I just visited 2 sites today and in both yurt field structures, bees were still flying in and out of their nests.
Tomorrow, I will go back to these two sites, and remove all the release shelters- to avoid additional parasitic wasps that might still need to emerge.
I will also bring a battery powered bug killer- like a small tennis racket with an electric battery driven electric zapper.  This should get rid of most of the active parasitic wasps.  In another 2 weeks, I will check again, and all, if not most mason bees will have quit by then.  At this time I will place a net bag around each nest to prevent parasitization by the little wasps.
It is quite amazing to see these critters still flying into mid July.-Margriet

This is my yurt field structure in Bellingham WA.  It is fully laden with highrises and a lot of the tunnel are filled by mason bees.  Today we removed all the release shelters.  Quite a few bees were flying in and out of the nests…more in a subsequent blog.

( 45)

2 Responses to Early July- Time to protect Nests from parasitic wasps?

  • Excellent website you have here but I was wondering if you knew of any discussion boards that
    cover the same topics discussed in this article? I’d really
    love to be a part of group where I can get feedback
    from other knowledgeable people that share the same
    interest. If you have any suggestions, please let me know.
    Cheers!

Leave a Reply

Your email address will not be published.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

Receive 12 How-to tips on managing mason bees plus our Newsletter with How-to information, Ideas and Specials

Sign up for the latest Buzz!

This blog includes: management tips on how to keep mason bees, stories and pictures from other mason bee keepers, trends in the industry, research news, interesting links, review of products, events and other interesting items.

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

Join 96 other subscribers

February 2017
M T W T F S S
« Jan    
 12345
6789101112
13141516171819
20212223242526
2728  
Popular posts
  • Bumble bees in bird house Kathy- Langley, BC sent me these photos of a bumble bees…
  • Key to identifying Apples The Seattle Tree Fruit Society have a great Key to…
  • Mason, resin and leafcutter bees This is how some insects overwinter, protected from the winter…
  • Cocoons in cotton-like material From: Harriet WSubject: weird yellow fluffy substance foundMessage Body:When I…
  • Spiders eat bees Hello Margriet. This is my second year with a mason…
  • How-to:   First steps in Fall cleaning ... It is time to clean out nests  and harvest your…
  • Franks harvesting story Thank you Frank for the great pictures.  This will help…
  • Scavenger beetles and mites "Hi Margriet, I called you yesterday from the 16th/Oak community…
  • Inside the nest: cocoons inside 'cotton fluff There have been half a dozen reports of cotton fluff…
  • Ants- watch out! Check out your mason bee homes every now and then,…