There are about 40 deer farms in West Virginia.
Agriculture Commissioner Gus Douglass said he had known Rose for more than four years. He was sorry to hear about the accident and wanted to pass along condolences to his family.
"He was a real professional and a real credit to the industry," Douglass said.
Lanny Clay, who runs a deer farm in Barboursville, was sad to hear of Rose's death.
"He's the one I got my first deer off of," Clay said. "When I decided to go into deer farming, I didn't know what to do. He helped me a lot. He was a real good guy. He told me what to look for."
Clay, who began deer farming a little over a year ago, now has 11 deer. He said he called on Rose occasionally for advice, and Rose was always willing to help.
Rose's name will remain on Tuesday's ballot following his death, which triggers a special write-in candidate filing period.
Those interested in becoming write-in candidates must file with the Secretary of State's office by 5 p.m. Thursday.
But voters can also still choose Rose. If he were to win, the governor would appoint one of three replacements recommended by a GOP committee.
Rose was challenging House Education Chair Mary Poling, a Democrat. Just over 930 county voters had cast early in-person or absentee ballots by Wednesday.
Wright Funeral Home in Philippi is in charge of arrangements.