Posts Tagged ‘native bees’

Making Native Bee Nesting Logs

Sunday, July 28th, 2013

Today I finally built some nesting logs for native bees.  I got inspired by the frequent postings of Gail Eichelberger about native plants and native polinators on her blog Clay and Limestone.  I then used some instructions from the Xerces Society (PDF), grabbed some old oak logs and got to work.  Most native bees build solitary nests.  Some nest in the ground and others nest in holes in wood or other cavities.

According to the Xerces Society, holes for wood nesting bees should be 3/32″ to 3/8″ wide and at 3-4″ deep for holes less than 1/4″ in diameter.  And they should be spaced about 3/4″ apart.  Since I had a 3/16″ drill bit on hand, that’s the size that I chose.

Oak logs ready to be drilled for bee habitat.

The logs before drilling. I peeled off some of the bark so that I could get the holes deeper into the wood. Note that beetles have already made some pathways.

Drilling holes in oak log to make nesting site for native bees

Holes are about 3/4″ apart and should be at least 3″ deep.

 

Oak log with multiple holes drilled in the top for native bee habitat.

The holes are drilled in the upper portion of the log. The lower portion will be buried to mimic a rotting tree trunk.

I dug three holes in my front yard garden near the pink skullcap.  Then I buried the lower portion of the logs deep enough that they would be stable, with the holes facing Southeast.  The holes are only in the upper portion of the logs.

Oak log drilled with holes for native bees placed upright in garden near pink skullcap, Scutellaria suffrutescens

Finished log placed upright by pink skullcap, Scutellaria suffrutescens.

I’ll find out over the coming months if any bees decide to take advantage of these logs.  As an added bonus, the logs add a decorative element to the garden.