Recently released data show the spotted wing drosophila survives at lower temperatures than previously thought.
Previous data showed flies stopped developing at 55 degrees Fahrenheit, according to Oregon State University extension entomologist Vaughn Walton.
New data show flies were still developing at 48 degrees.
"That sounds small, but it might have a huge impact in winter survival and early-spring development," Walton said.
Optimum fly development occurs at 72 degrees, according to new data. Previous data showed optimum development occurred at 75 degrees.