In article ,
ojunk (George Adams) wrote:

From: "bruiser"

I have an irrigation ditch that runs from April through October only,
and at
best. There are mayfly hatches there too and I've wondered the same
thing.

Hatches or spinner falls? I've seen spinner falls on paved roads.


George Adams


Hi George
I guess it would have to be a spinner fall as what I m seeing is
the actuall mating swarm and the tricos are confused by the paved
road and are attempting to lay eggs upon it.

The reason I m curious about this is that I wonder if the nymphs,
as I assume the eggs are hatching when there s water in the canal, can
survive dry periods and still remain viable. I d also assume they
freeze in the winter as they couldn t burrow into the mud deeply
enough to escape freezing. It may shed some light on how well insect
life can sustain itself in other streams such as the West Branch of
the Delaware River when they cut the flows way back and expose the
stream bed.

MT