Butler Little Theatre presents “Blithe Spirit,” the first show of BLT's 75th season, Oct. 2 to 10 at the theater at One Howard St.

Curtain is at 8:15 p.m. Fridays and Saturdays, 2:30 p.m. Sunday and 7:30 p.m. Tuesday, Wednesday and Thursday.

Tickets are $12 and are available by calling 724-287-6781 from 7 to 9 p.m. Mondays through Fridays.

For more information, visit www.bltgroup.org.

The free Butler County Farm Tour will be Saturday and Sunday at various sites.The tour in the central region includes Alpaca Palace, Chestnut Ridge Farm, Freedom Farms, Harvest Valley Farms, Metrick's Harvest View Farm and Market, and Silver Crest Equestrian Center.In the southwest region, the tour includes Asgard Acres Alpaca Farm, Cheeseman Farm, Fischer's Windy Ridge Farm, and Pine Hill Farms.Call 866-856-8444 or visit www.VisitButlerCounty.com for a free visitor's guide.

The Butler County Symphony Orchestra's 67th season begins Saturday with a concert featuring pianist Cahill Smith.He will perform Mozart's “Piano Concerto No. 23, K. 488 in A Major” with the orchestra.Butler Symphony music director and conductor Matthew Kraemer will present a pre-concert lecture at 6:30 p.m.The concert will begin at 7:30 p.m. at the Butler Intermediate High School auditorium, 551 Fairground Hill Road.Tickets are available at the symphony office, 259 S. Main St., by calling 724-283-1402, or at www.ShowClix.com. Tickets are $23 for adults and $5.50 for students, which includes a handling fee.The concert is being sponsored by Stantec in memory of Dick Rittelmann and Alva Hill.

JEFFERSON TWP — Concordia Lutheran Ministries will host its annual Oktoberfest celebration, featuring a Zambelli fireworks display, from 4 to 8 p.m. Saturday at Haven I, 112 Marwood Road.For children, there will be balloon artists, a caricature artist, a petting zoo and pony rides, games, crafts, hayrides, and a bounce castle.Entertainment in the dining room will be provided by the Mikey Dee Polka Band. Food will be available.Guests are encouraged to arrive well before the 7:45 p.m. fireworks display to park in the designated areas.Admission is free. Call 724-352-1571, Ext. 8266, or visit www.concordialm.org.

The 31st annual Mars Applefest will be held from 10 a.m. to 4 p.m. Saturday.Food, exhibitors, games, crafts and live entertainment will be presented on the main stage at the corner of Grand Avenue and Pittsburgh Street.For more information, visit marsapplefest.com.

PITTSBURGH — Carnegie Museums of Art and Natural History will have free admission from 3 to 8 p.m. Thursdays in October, made possible by UPMC Health Plan.

PITTSBURGH — After a 10-year hiatus, the Wings & Wildlife Art Show returns to the National Aviary.This two-day juried show and marketplace will feature original paintings by Johno Pascak, and will showcase the work of 46 locally and nationally known wildlife artists working in paint, photography, textiles, jewelry, metal, ceramics, paper, and wood.The show will run 10 a.m. to 5 p.m. Nov. 7 and 8 and is included in the price of admission, which is $14 for adults, $13 for senior citizens, and $12 for children ages 2 to 12.For more information, visit www.aviary.org or call 412-258-9433.

SLIPPERY ROCK — David Skeele, Slippery Rock University professor of theater and horror-genre playwright, will present “Starla” six times in October along with Infinite Abyss Productions, a horror theater in Florida.Skeele has written four other horror plays and his work has been presented internationally. SRU students have staged his work as part of Fringe Arts Festival Scotland.Skeele, who joined SRU in 1993, has written more than 10 plays and directed more than 35.

BRADY TWP — The Old Stone House will host its “Spooky Stories” Halloween festivities for visitors of all ages from 5:30 to 8:30 p.m. Oct. 22 and 23.The program will feature storytelling by Joanna Demarest, Alan Irvine, and Marsha Wong.The program Oct. 23 will include the annual costume contest for children age 10 and younger.In addition to interactive storytelling, festivities will include historical reenactments and family-focused activities.Admission is $5 for adults and $3 for children, but no more than $15 for a family.The Old Stone House at the intersection of Routes 8, 173 and 528 is owned and managed by Slippery Rock University.