Green laser
lights may be the answer
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Professor Rebecca Brown poses in the URI agronomy fields where she is testing various strategies for keeping birds from feeding on sweet corn. (Photo by Nora Lewis) |
Large flocks of starlings and blackbirds are voracious
consumers of sweet corn, costing local farmers as much as $800 per acre in lost
product. And this year is turning out to be a particularly bad year for bird
damage.
But
the most effective and economical strategy farmers have used to scare the birds
away – propane-powered cannons that make a loud booming sound at random
intervals – are not especially popular with neighbors, many of whom complain
about the noise.
So the Rhode Island Department of Environmental Management
asked a University of Rhode Island researcher to investigate alternatives.
Rebecca
Brown, a URI professor of plant sciences and an expert on growing vegetables,
said the problem of bird damage in commercial corn fields is a serious one.
“Flocking
birds can cause an enormous amount of damage to sweet corn,” she said. “They
get in there and shred the husks and eat the kernels, and then the farmers
can’t sell it. Some birds have even figured out that if they follow the picking
crews, they’ll get the best corn at the best time.”
In
addition to propane cannons, some farmers have tried tying reflective tape or
balloons throughout their fields to frighten the birds or used spray-on bird
repellents. But neither is cost effective.