The beekeepers are wondering what to do

The beekeepers are wondering what to do,

Their stock has fallen by forty per cent;

They scratch their heads and only wish they knew

What the demise of their poor insects meant.

For whilst the winter loss rates now were few,

The summer losses were on the ascent.

Backyard keepers blamed the varroa mite;

As bees buzzed off into the dying light.

This is a ottava rima written about this study, which found that U.S. beekeepers lost 40% of bees in 2014-15.