Expert Tree Service & Ash Borer Treatment Affordable & Effective The ash borer's presence north of Mt. Lake and in the Butterfield area is well-documented. The borer travels easily and is expected to reach Windom in the near future. Emerald Ash Borer treatment: $12/diameter inch (avg. $180/tree), lasts 2 years Free estimates Tree canopy cleaning/tree trimming Expert structural pruning; fruit tree pruning and spraying (popular now) Certified arborist. Specializes in proper tree care-plus pest/disease diagnosis Stump removal The destructive emerald ash borer beetle has killed hundreds of millions of ash trees where it has been discovered. Tree-age insecticide is deemed "as close to... a silver bullet as possible" Dave Ahrens is a certified arborist, which includes expertise in such things as: Fruit tree pruning Structure pruning Clearance pruning. All pruning is done to International society of Arboriculture (ISA), Tree Care Industry Association (TCIA), and American National Standards Institute (ANSI) standards. David Ahrens AHRENS Certified Arborist CERTIFIED ARBORIST 507-840-0601 ARBOR CARE Rural St. James f ISA Expert Tree Service & Ash Borer Treatment Affordable & Effective The ash borer's presence north of Mt. Lake and in the Butterfield area is well - documented . The borer travels easily and is expected to reach Windom in the near future . Emerald Ash Borer treatment : $ 12 / diameter inch ( avg . $ 180 / tree ) , lasts 2 years Free estimates Tree canopy cleaning / tree trimming Expert structural pruning ; fruit tree pruning and spraying ( popular now ) Certified arborist . Specializes in proper tree care - plus pest / disease diagnosis Stump removal The destructive emerald ash borer beetle has killed hundreds of millions of ash trees where it has been discovered . Tree - age insecticide is deemed " as close to ... a silver bullet as possible " Dave Ahrens is a certified arborist , which includes expertise in such things as : Fruit tree pruning Structure pruning Clearance pruning . All pruning is done to International society of Arboriculture ( ISA ) , Tree Care Industry Association ( TCIA ) , and American National Standards Institute ( ANSI ) standards . David Ahrens AHRENS Certified Arborist CERTIFIED ARBORIST 507-840-0601 ARBOR CARE Rural St. James f ISA