Aerification Tips

With the approach of  Labor Day - coring or aerification is under way. Coring is a critical agronomic practice for helping reduce compaction, increase oxygen exchange rates, and help reduce thatch. Of the many golf course practices it is probably the least tolerated by golfers and golf clubs. The disruption to the playing surface due to coring never seems to occur at the "right time".  Given the restraints that many golf courses place, coring may be scheduled at the "wrong time".  Here are a few suggestions, to keep in mind.

 

Coring during hot weather is not good. When soil temperatures average above 70 degrees F (the average soil temperature in Columbus at the moment (8/3/05) is 77 F) little to any new root growth is occurring. For cool season turfgrasses like creeping bentgrass, perennial ryegrass and Kentucky bluegrass high soil temperatures are a good indicator these plants remain under summertime stress. High soil temperatures combined with the added stress of fall coring can cause a rapid decline in the turf - especially when combined with topdressing.   

 

Core holes tend to desiccate during hot weather. The lack of water or inadequate soil moisture can cause the turf around the core holes to die. Be cognitive of the potential for rapid turf wilt when coring. Watering will be needed frequently after coring under hot dry conditions.

 

Cutworms love to feed around core holes. Be aware that cutworms may be present at or shortly after coring. An insecticide may be required to minimize damage.

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