The White House yesterday canceled President Reagan's scheduled trip to Richmond July 30 on behalf of Wyatt Durrette, the Virginia Republican nominee for governor. Durrette met privately in Richmond with White House aides in an apparent effort to reschedule a presidential visit.

Reagan, who is recovering from cancer surgery, had been scheduled to visit the Boy Scout Jamboree at Fort A.P. Hill in Caroline County and attend a Durrette fund-raising reception.

Virginia and New Jersey are the only states that will elect governors this year. With New Jersey's GOP incumbent heavily favored for reelection, Durrette is expected to receive substantial assistance from the national GOP. :0000500000181:

Former Alexandria fire chief Charles Rule and William Blair of Emmitsburg, Md., are among four finalists for the job of Pittsburgh fire chief, according to the Pittsburgh Press.

Rule, who quit his Northern Virginia job in 1983 after he was not named as Alexandria's new public safety director, joined the National Fire Protection Association in Quincy, Mass., as a consultant.

Blair, fire commissioner in Chicago from 1980 to 1983, is an instructor at the National Fire Academy in Emmitsburg.

John J. Norton, Pittsburgh's new public safety director, has pared a list of 80 applicants to the four finalists, who include two Pittsburgh fire officials.