I killed 3 Houdini flies today. I killed every one I saw.
A Houdini fly looks like a fruit fly. It hangs around the tubes
waiting for an unsuspecting mason bee to leave a cache of pollen.
Sooo, I hang around the condo waiting for a Houdini fly to land
in a vulnerable place. Then whap ! No more Houdini fly.
Condo #1 is totally full. Condo #2 is about 90% full.
Bees are taking full advantage of the two new condos.
I estimate I will harvest about 1,000 cocoons in October.
I usually figure the average number of cocoons per tube is
roughly 3. Some tubes have as many as 6 cocoons and some are
loaded with parasites. But the average is about 3.
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